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tatiyna
2 years ago
15

Pls help, How is stoichiometry used to calculate amounts of substances in a chemical reaction?

Chemistry
1 answer:
Elden [556K]2 years ago
7 0

Answer:

Thus, to calculate the stoichiometry by mass, the number of molecules required for each reactant is expressed in moles and multiplied by the molar mass of each to give the mass of each reactant per mole of reaction. The mass ratios can be calculated by dividing each by the total in the whole reaction.

Explanation: Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products.

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63 J = 8 g * Cp * (340 K – 314 K)

<span>Cp = 0.3 J / g K</span>

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A method used by the U.S. Environmental Protection Agency (EPA) for determining the concentration of ozone in air is to pass the
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Answer: 1. 9.08\times 10^{-6} moles

2. 90 mg

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According to stoichiometry:

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According to stoichiometry:

1 mole of ozone is removed by 2 moles of sodium iodide.

Thus 0.0003 moles of ozone is removed by =\frac{2}{1}\times 0.0003=0.0006 moles of sodium iodide.

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The molecule NH3 contains all single bonds.<br><br> true <br> false
dsp73
<h3><u>Answer;</u></h3>

True

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