15 Questions
What is stoichiometry?
The calculations of the quantities in chemical reactions based on a balanced equation
What is the molar mass of water (H2O)?
18.015 g/mol
What is the molar mass of barium nitrate (Ba(NO3)2)?
261.34 g/mol
What is the molar mass of ammonium chromate ((NH4)2CrO4)?
152.06 g/mol
What does a chemical equation of a chemical reaction include?
Molecular formulae of reactants and products, phases, and stoichiometry
What do the coefficients in a balanced chemical equation represent?
Proportions of each substance
In a balanced chemical equation, what must be equal on both sides?
Number of elements and net charges
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
What do moles provide a bridge from in stoichiometry?
Molecular scale to the real-world scale
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
How many moles of O2 are produced when 3.34 moles of Al2O3 decompose?
5.01 moles
How many moles of Al are produced when 430 g of Al2O3 decompose?
8.44 moles
How many moles of Al are produced when 6.11 moles of O2 are produced?
8.15 moles
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
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
Test your understanding of stoichiometry in medicine with this quiz. Explore drug dosage calculations and learn how to determine the appropriate medication dosage based on patient weight. Strengthen your knowledge of stoichiometry and its application in achieving effective medical treatments.
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