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Stoichiometry in Medicine

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Questions and Answers

What is stoichiometry?

The study of the behavior of gases under varying temperature and pressure

The study of the physical and chemical properties of elements

The calculations of the quantities in chemical reactions based on a balanced equation (correct)

The process of measuring the volume of reactants in a chemical reaction

What is the molar mass of water (H2O)?

20.007 g/mol

22.990 g/mol

18.015 g/mol (correct)

36.031 g/mol

What is the molar mass of barium nitrate (Ba(NO3)2)?

153.33 g/mol

197.32 g/mol

261.34 g/mol (correct)

309.28 g/mol

What is the molar mass of ammonium chromate ((NH4)2CrO4)?

152.06 g/mol Signup and view all the answers

What does a chemical equation of a chemical reaction include?

Molecular formulae of reactants and products, phases, and stoichiometry Signup and view all the answers

What do the coefficients in a balanced chemical equation represent?

Proportions of each substance Signup and view all the answers

In a balanced chemical equation, what must be equal on both sides?

Number of elements and net charges Signup and view all the answers

What does the conservation of mass state in a balanced chemical equation?

Mass cannot be created or destroyed, and the number of elements should be the same on both sides Signup and view all the answers

What do moles provide a bridge from in stoichiometry?

Molecular scale to the real-world scale Signup and view all the answers

What are the steps to calculate stoichiometric problems?

Correctly balance the equation, convert the given amount to moles, set up mole ratios, use mole ratios to calculate moles of desired chemical, convert moles back into final unit Signup and view all the answers

How many moles of O2 are produced when 3.34 moles of Al2O3 decompose?

5.01 moles Signup and view all the answers

How many moles of Al are produced when 430 g of Al2O3 decompose?

8.44 moles Signup and view all the answers

How many moles of Al are produced when 6.11 moles of O2 are produced?

8.15 moles Signup and view all the answers

How many moles of C2H2 are needed to produce 8.95 moles of H2O in the reaction 2C2H2 + 5 O2 4CO2 + 2 H2O?

17.9 moles Signup and view all the answers

If 2.47 moles of C2H2 are oxidized, how many moles of CO2 are formed in the reaction 2C2H2 + 5 O2 4CO2 + 2 H2O?

4.94 moles Signup and view all the answers