Answer:
The limiting reagent is the reactant that is used up completely. This stops the reaction and no further products are made. ... The limiting reagent can also be derived by comparing the amount of products that can be formed from each reactant.
Answer:
The limiting reagent is the reactant that is used up completely. This stops the reaction and no further products are made. ... The limiting reagent can also be derived by comparing the amount of products that can be formed from each reactant.
Explanation:
Disclaimer not my answer I looked it up
What the expected outcome is, if the MDS is successfully implemented
If the MDS (Minimum Data Set) is successfully implemented, several positive outcomes can be expected. The MDS is a standardized assessment tool used in healthcare settings to evaluate the physical, mental, and psychosocial well-being of patients.
Its successful implementation can lead to improved patient care, more efficient resource allocation, and enhanced data analysis.With the MDS in place, healthcare providers can gather consistent and comprehensive data about patients, enabling better understanding of their needs and tailoring of individualized care plans.
This can result in improved treatment outcomes and patient satisfaction. Additionally, the MDS facilitates effective communication and information sharing among healthcare professionals, leading to coordinated care and reduced errors.From a broader perspective, successful implementation of the MDS allows for accurate and reliable data collection, enabling robust research and evidence-based decision-making.
This can contribute to advancements in healthcare practices, policy development, and quality improvement initiatives. Ultimately, the successful implementation of the MDS can enhance patient outcomes, improve healthcare delivery, and drive positive changes in the healthcare system as a whole.
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classify the following aq. solutions as: non-electrolytes, strong electrolytes and weak electrolytes. a) nacl b) hbr c) hch3co2 d) ch3oh e) h2o
Strong electrolytes : NaCl, HBr The correct options are a and b.
Weak electrolytes : HCH3CO2 The correct option is c.
Non-electrolyte: CH3OH, H2O The correct options are d and e.
The classification of aqueous solutions as non-electrolytes, strong electrolytes, or weak electrolytes depends on the degree to which they dissociate into ions when dissolved in water.
a) NaCl - Strong electrolyte: It dissociates completely into its ions (Na+ and Cl-) when dissolved in water.
b) HBr - Strong electrolyte: It also dissociates completely into its ions (H+ and Br-) in an aqueous solution.
c) HCH3CO2 (Acetic Acid) - Weak electrolyte: It partially dissociates into its ions (H+ and CH3COO-) in water.
d) CH3OH (Methanol) - Non-electrolyte: It does not dissociate into ions and thus does not conduct electricity in an aqueous solution.
e) H2O (Water) - Non-electrolyte: Although it can act as a weak electrolyte when ionized to a small extent, it is generally considered a non-electrolyte because of its low conductivity.
The correct options for strong electrolytes are a and b, for non-electrolytes are d and e and for weak electrolytes is c.
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I am timed please help
Answer:
compound
Explanation:
MgO is an inorganic compund :) The simplest explanation is that it's not an element b/c there's two elements (Mg & O) in the substance, and it's not a mixture b/c you can't easily separate the two elements.
Answer:
magnesium when magnesium is burnt by heat it forms an compound called magnesium oxide
What is the oxidation number of phosphorus in red phosphorus?
Red phosphorus is a chain compound of the P4 molecule. In this compound each phosphorus is bonded to three phosphorus atoms. The possible oxidation states of phosphorus are +/- 3,5,4.
But, we must keep in mind that the oxidation number of the atoms of a free element is zero. Thus, each atom in the P4 chain has an oxidation number of zero. This is because phosphorus is not combined.
Answer: 4. 0
what is the mass of 3.40 x 10^35 formula units of KCl??
The mass of 3.40 x 10^35 formula units of KCL is 4.20 * 10^13.
What is meant by the formula unit?The empirical formula of an ionic or covalent network solid compound that is used as a separate entity for stoichiometric calculations is known as a formula unit in chemistry. It is also the ionic compound with the lowest whole number ratio of ions.
As we know,1 mole = 6.02 x 1023 molecules.
1 = (1 mole)/(6.02x1023 molecules)
So, (3.40x10^35 molecules KCL)*(1 mole KCL)/(6.02x1023 molecules KCL)
5.647 *10^11 moles Na2SO4
Molar mass of KCL = 74.55 g/mol
Mass of KCL will be = 5.647 *10^11 * 74.55
Hence, mass of KCL = 4.20 * 10^13
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lewis electron dot notation
Lewis electron dot notation is a method for representing the valence electrons in an atom. In this notation, the valence electrons are shown as dots around the symbol of the element. The number of dots represents the number of valence electrons.
The Lewis electron dot notation is a useful tool for understanding the chemical behavior of elements. It allows us to see how many valence electrons an atom has and how they are distributed. This information can be used to predict the types of chemical bonds that an atom is likely to form. For example, the Lewis electron dot notation for nitrogen is:
N: ·
Nitrogen has five valence electrons, so there are five dots around the symbol.
In addition to representing individual atoms, the Lewis electron dot notation can also be used to represent molecules. In a molecule, the dots represent the shared electrons between the atoms. The Lewis electron dot notation is an important concept in chemistry that helps us to understand the properties and behavior of atoms and molecules.
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Alli and her classmates want to know which species of oak produces the acorns that squirrels prefer. Which poss
procedure is likely to produce the most reliable results?
A.) For one day, observe and record the number of squirrels that gather acorns from each species of oak.
B.) For three days, observe and record the number of squirrels that gather acorns from each species of oak.
C.) For five days, observe and record the number of squirrels that gather acorns from each species of oak.
D.) For seven days, observe and record the number of squirrels that gather acorns from each species of oak.
HELP, PLEASE!
what type of energy is the sum of kinetic and potetinal energy in an object that is used to do work
Answer:
mechanical energy
Explanation:
A bike lost 20% of its value after the first year, its value after the first year is $1039. Calculate the original price of the bike?
Answer:
$1246.90
Explanation:
Since the bike lost \(20%\)% of it's value and it now currently at $\($1039\), we have to do 20% * $1039 to find the amount of money lost. 20%*1039=207.8. We have to add it up to find the original value so 1039+207.8=$1246.8
Grams of cl in 38g of cf3cl
Answer:
114 grams
Explanation:
3chlorines per compound*38grams=114
The pOH of a solution is 6.0. Which statement is correct?
Use pOH = -log[OH-] and PH+pOH = 14.
The pH of the solution is 20.0.
O The concentration of OH ions is 1.0 x 108 M.
The concentration of OH ions is 1.0 x 106 M.
O The pH of the solution is 8.0.
A
At pOH value of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)
In this question we will apply the formula
pH +pOH = 14 . . . . . . . . . . . . .(1)
where pH = concentration of [\(H^{+}\) ] ion
pOH = concentration of [\(OH^{-}\) ] ion
As per the question
pOH =6.0
Putting the value of pOH in equation (1) we get the value of pH
pH + 6.0 =14
pH = 14 -6.0
pH = 8.0
The value of pH if the pOH value is 6.0 is 8.0
To find the concentration of \(H^{+}\) ion we will use the following formula
This is calculated by the formula
[\(H^{+}\)} = \(10^{-pH}\)
where we will write the values of pH
Hence the concentration of [\(H^{+}\)} ion is \(10^{-8}\)
Therefore at pOH of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)
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The complete question is -
What is the pH value and concentration of [\(H^{+}\) ] ion of the following if the pOH value of the solution is 6.0 ?
An ideal gas sample has a certain volume at 350 K and 1 atm. The volume of the
same sample at STP will be closest to the volume at 350 K and 1 atm multiplied by:
A. 350/273
B. 350/298
C. 298/350
D. 273/350
From the general gas equation, the volume of the same sample of gas at STP will be closest to the volume at 350 K and 1 atm multiplied by 273/350; option D.
What is the relationship between the volume, temperature, and pressure of a gas?The relationship between the volume, temperature, and pressure of a gas is given by the general gas equation below:
P₁V₁ / T₁ = P₂V₂ / T₂
Where;
P₁ = initial pressure
V₁ = initial volume
T₁ = initial temperature
P₂ = final pressure
V₂ = final volume
T₂ = final temperature
Solving for V₂;
V₂ = P₁V₁T₂ / P₂T₁
V₂ = 350 * 1 * 273/350
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2 Select all the correct answers. A worker is holding a filled gas cylinder still. Which two sentences are true about the energy of the filled gas cylinder? It has no energy because it’s being held still. It has gravitational potential energy because of its height. Its atoms and molecules have thermal energy. It has motion energy because it will fall if let go. Its kinetic energy is being converted to potential energy.
The sentences that are true about energy in a gas cylinder are:
It has gravitational potential energy because of its height.Its kinetic energy is being converted to potential energyWhat is energy?Energy is the ability or capacity of people or a thing to do work or perform task effectively.
Therefore, The sentences that are true about energy in a gas cylinder are:
It has gravitational potential energy because of its height.Its kinetic energy is being converted to potential energy.Learn more about energy below.
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12. 5.6g of solid copper was heated with 476.2 J at room temperature (25°C). Given that
copper has a C of 0.38 J/g°C, what would its final temperature be?
Answer:
The final temperature of the copper would be 311.3°C.
I hope this helps you
What is true of a Lewis base?
A. A Lewis base donates electron pairs.
B. A Lewis base donates H* ions.
C. A Lewis base donates a salt in solution.
D. A Lewis base donates OH ions.
The statement that is true of a Lewis base is that a Lewis base donates electron pairs (option A).
What is a Lewis base and acid?A Lewis base is any nucleophylic compound that can donate a pair of electrons and form a coordinate covalent bond.
On the other hand, a Lewis acid is any electrophylic compound that can accept a pair of electrons and form a coordinate covalent bond.
This means that a Lewis base can donate a pair of electrons to a Lewis acid to form a product containing a coordinate covalent bond. This product is also referred to as a Lewis adduct.
Therefore, option A is correct about Lewis base
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I need help with this
The theoretical yield of water formed from the reaction of 46.8g of octane and 287g of oxygen gas is 58.58 g.
What is a balanced chemical equation?A balanced chemical equation is a representation of a chemical reaction using chemical formulas and symbols. It shows the reactants and products of the reaction, and the coefficients in front of the formulas ensure that the number of atoms of each element is the same on both sides of the equation.
The balanced chemical equation for the reaction between octane and oxygen gas is:
2 C8H18 + 25 O2 → 16 CO2 + 18 H2O
According to the stoichiometry of the balanced equation, 2 moles of octane react with 25 moles of oxygen gas to produce 18 moles of water. Therefore, the molar ratio of octane to water is 2:18 or 1:9.
First, we need to determine which reactant is limiting, i.e., which reactant will be completely consumed in the reaction. To do this, we can calculate the amount of water that would be produced if each reactant were to react completely and then compare the results.
The molar mass of octane (C8H18) is 114.23 g/mol, so 46.8 g of octane is equal to:
46.8 g / 114.23 g/mol = 0.41 mol
The molar mass of oxygen gas (O2) is 32.00 g/mol, so 287 g of oxygen gas is equal to:
287 g / 32.00 g/mol = 8.97 mol
Now, we can calculate the theoretical yield of water based on the amount of each reactant:
Octane: 0.41 mol octane × 9 mol H2O/1 mol octane = 3.69 mol H2O
Oxygen gas: 8.97 mol oxygen gas × 9 mol H2O/25 mol O2 = 3.25 mol H2O
Since the stoichiometry of the reaction indicates that the amount of water produced should be proportional to the amount of octane used, and the calculation shows that less water would be produced if we used all of the oxygen gas, we conclude that oxygen is the limiting reactant.
Therefore, the theoretical yield of water formed is 3.25 mol H2O × 18.02 g/mol = 58.58 g H2O.
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Based on the ideal gas law, there is a simple equivalency that exists between the amount of gas and the volume it occupies. At standard temperature and pressure (STP; 273.15 K and 1 atm , respectively), one mole of gas occupies 22.4 L of volume. What mass of methanol ( CH3OH ) could you form if you reacted 7.82 L of a gas mixture (at STP) that contains an equal number of carbon monoxide ( CO ) and hydrogen gas ( H2 ) molecules?
You could form approximately 5.8 grams of methanol (CH3OH) from the given gas mixture at STP.
What is the mass?
Using the Ideal gas equation;
n = PV / RT
n = (1 atm * 7.82 L) / (0.0821 L·atm/(mol·K) * 273.15 K)
From the question;
nCO = n / 2
nH2 = n / 2
Then;
n = (1 atm * 7.82 L) / (0.0821 L·atm/(mol·K) * 273.15 K)
n = 0.362 mol
nCO = n / 2 = 0.362 mol / 2 = 0.181 mol
nH2 = n / 2 = 0.362 mol / 2 = 0.181 mol
By stoichiometry;
methanol= nCO = 0.181 mol
Mass of methanol = 0.181 mol * 32.04 g/mol
= 5.8 g
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What BEST describes the relation of a new population to an increase in the amount of space it occupies? a - The population will die out
b - The population will remain constant
c - The population will grow exponentially
The element that is in the same family as element C (gas) is likely to have which properties. 2 valence electrons, solid, metal 6 valence electrons, gas, nonmetal, 6 valence electrons, solid, nonmetal, 2 valence electrons, solid, nonmetal
Answer:
that element is likely to be a non metaland a gas
Rick is creating a love potion for Morty. To make the potion, Rick's needs 51 mL of a mixture solution where 40% is carbonated water. After checking around his shop, Rick finds two solutions he could use. The first solution he found is 65% green tea, 15% carbonated water, and 20% whole milk. The second solution is 17% orange juice, 38% lemonade, and 45% carbonated water. How much of the first solution and second solution does Rick need to mix together to create the love potion? Round your final answers to one decimal place. You may solve this problem using any method we have learned in the class.
Answer:
The amount of the first solution rick needs to mix together to create the love portion is 8.5 mL
Explanation:
So as to make the love potion, we have;
The percentage of carbonated water in the love portion = 40%
The percentage of green tea in the first solution = 65%
The percentage of carbonated water in the first solution = 15%
The percentage of whole milk in the first solution = 20%
The percentage of orange juice in the second solution = 17%
The percentage of lemonade in the second solution = 38%
The percentage of carbonated water in the second solution = 45%
Let 'x' represent the volume in mL of the first solution added to make the love portion, and let 'y' be the volume in mL of the second solution added to make the love portion, we have;
x + y = 51...(1)
0.15·x + 0.45·y = 0.40×51 = 20.4
0.15·x + 0.45·y = 20.4...(2)
Solving the system of simultaneous equation by making 'y' the subject of each of the equation gives;
For equation (1)
y = 51 - x
For equation (2)
y = 20.4/0.45 - (0.15/0.45)·x = 136 - 3·x
y = 136/3 - (1/3)·x
Equating the two equations of 'y', gives;
51 - x = 136/3 - (1/3)·x
51 - 136/3 = x - (1/3)·x
17/3 = (2/3)·x
(2/3)·x = 17/3
x = (3/2) × (17/3) = 17/2 = 8.5
x = 8.5
y = 51 - x = 42.5
y = 42.5
Therefore, the amount of the first solution rick needs to mix together to create the love portion, x = 8.5 mL
Which of these is an example of a physical property?
A. Iron combines with oxygen to rust.
B. Potassium reacts in water to form a base.
C. Sodium metal is soft and malleable.
D. Sodium ignites when placed in water.
Calculate the number of molecules in 1.25 moles of Al(OH)3
Step 1
Avogadro's Number states that:
1 mole of Al(OH)3 = 6.02x10^23 formula units (molecules in this case)
--------------
Step 2
Information provided:
1.25 moles of Al(OH)3
--------------
Step 3
Procedure:
1 mole Al(OH)3 --------- 6.02x10^23 molecules
1.25 moles Al(OH)3 --------- X
X = 1.25 moles Al(OH)3 x 6.02x10^23 molecules/1 mole Al(OH)3
X = 7.53x10^23 molecules of Al(OH)3
Answer: 7.53x10^23 molecules of Al(OH)3
What volume of CO2(g), measured at STP is produced if 15.2 grams of CaCO(s) is heated?
Answer:
Volume = 3.4 L
Explanation:
In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:
CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)
Now, let's calculate the number of moles in 15.2 g CaCO₃:
mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)
= \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)
= 0.1518 moles
From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.
Hence, from the formula for the number of moles of a gas, we can calculate the volume of CO₂:
mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)
⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)
⇒ Volume = 0.1518 × 22.4
= 3.4 L
Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.
Name a liquid substance that could be used in the laboratory for: dissolving dry mortar on floor tiles; (i) removing KMnO, stains; drying acid anhydrides
Explanation:
For dissolving dry mortar on floor tiles, you can use concrete and mortar dissolver. You can find this product at your local hardware store or online12.
For removing KMnO stains, you can use vinegar. Mix vinegar with water and spray or pour it on the tile surface. Let the vinegar water set in for a few minutes, then sponge the entire area to get it as clean as possible. Next, use a razor blade or scraper to peel up the mortar. Be careful not to gouge or scratch the tiles3.
KMnO is potassium permanganate. it makes water drinkable if it's polluted
For drying acid anhydrides, you can use calcium chloride. Calcium chloride is a hygroscopic substance that absorbs moisture from the air and can be used as a desiccant.
desiccants keeps things dry so they last longer like food & clothes
bingAI
4. Calculate the number of moles in each of the following quantities:
b. 1.06 x 1023 atoms of tungsten
The number of mole in 1.06×10²³ atoms of tungsten is 0.176 mole
How do i determine the number of mole?The following data were obtained from the question:
Number of atoms = 1.06×10²³ atomsNumber of mole =?The number of mole that contains 1.06×10²³ atoms of tungsten can be obtained as illustrated below:
From Avogadro's hypothesis,
6.022×10²³ atoms = 1 mole of substance
Thus, we can say that
6.022×10²³ atoms = 1 mole of tungsten
Therefore,
1.06×10²³ atoms = (1.06×10²³ atoms × 1 mole) / 6.022×10²³ atoms
1.06×10²³ atoms = 0.176 mole of tungsten
Thus, we can conclude from the above calculation that the number of mole is 0.176 mole
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Which of the following VSEPR shapes describes the geometry of a
molecule with two atoms bonded to a third central atom with no lone pairs on the central atom?
A. linear
B. bent
C. trigonal planar
D. tetrahedral
The shape of the molecule with two atoms bonded to a third central atom with no lone pairs on the central atom is Linear.
Hence the correct option is (A)- linear
As given, the central atom has no lone pairs and two atoms bonded to the central atom.
Therefore the shape of the molecule is linear.
For example, let's take the example of CO₂. Here, the central atom is C and has four valence electrons. C uses 1 pair o electrons to form a double bond with each atom of O. Hence, C uses a total of 4 electrons to form a double bond with the O atom. No lone pair is left with carbon to create distortion in the molecule.
Therefore, the shape of the molecule will be linear.
So, the correct option is A.
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when you are at rest your heart pumps about 5.0liters of blood per minute. Your brain gets about 15percent by volume of your blood. What volume of blood in liters is pumped through your brain in 1 hour of rest?
Answer:
0.75 liters
Explanation:
How many moles are in 78.3g of ammonium sulfite?
Answer:
To find the number of moles in 78.3 grams of ammonium sulfite, you would divide the mass by the molar mass of the substance. The molar mass of ammonium sulfite is (14.0067 + 14.0067 + 32.065 + 64.0638) g/mol = 124.1472 g/mol.
78.3 g / 124.1472 g/mol = 0.63 moles
Explanation:
Answer:
0,6746 moles of ammonium sulfite
Explanation:
(NH₄)₂SO₃ - ammonium sulfite \(\equiv \, N_2H_8SO_3\)
Atomic weight of each element:
N = 14.00 * 2 = 28
H = 1.00 * 8 = 8
S = 32.065 * 1 = 32.065
O = 16 * 3 = 48
Total atomic weight = 28 + 8 + 32.065 + 48
Total atomic weight = 116,065 gr/mol
\(78.3\,g \,* \frac{1mol\,of\, (NH_4)_2SO_3}{116.065g \, \,of \, (NH_4)_2SO_3 } \approx 0,6746\, moles \, of \, (NH_4)_2SO_3\)
Help please from science
The correct answers to the fill in the blank problems given above are as follows:
Mitotic phase is the part of the cell cycle that divides the material
This process happens only in somatic cells, also is known as body cells.
There are 4 parts of this process:
1. Prophase: the phase that DNA coils into the chromosome.2. Metaphase: the phase where the chromosome organize in the middle of the cell to prepare to divide.3. Anaphase: the phase where chromosome pull apart4. Telophase: the phase where 2 nuclear membranes surround the divided genetic materials What is meant by mitosis?Mitosis can simply be defined as a special process of cell division in which a single cell divides into two different identical daughter cells.
Aside, mitosis; another major cell division which occurs in the cells of living organisms is the meiosis. Below are the phases involved in mitotic cell division, these are as follows:
ProphaseMetaphaseAnaphaseTelophaseIn conclusion, it can be deduced from the explanation given above that mitosis is a process of cell division.
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if we are constantly taking in more and more c-14 why does it concentration in us not increase