Stoichiometry

Front

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

Back

theoretical yield

Front

What is the measured amount of a product obtained from a chemical reaction? Options: mole ratio, theoretical yield, percentage yield, actual yield

Back

actual yield

Front

Mole ratios are obtained from the

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balanced chemical equation

Front

What is the mole ratio of H₂O to H₃PO₄ in the chemical equation P₄O₁₀ + 6 H₂O --> 4 H₃PO₄?

Back

6:4

Front

2Al + 3H₂SO₄ -> Al₂(SO₄)₃ + 3H₂
How many grams of aluminum sulfate would be formed if 250g H₂SO₄ completely reacted with aluminum? Options: 0.85 g, 290 g, 450 g, 870 g

Back

290 g

Front

For the reaction Cl₂ + 2KBr → Br₂ + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide? Options: 749 g, 225 g, 479 g, 814 g

Back

225 g

Front

When does a chemical reaction stop?

Back

When the limiting reactant is used up

Front

Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl₂.
 
Mg +  2HCl --> MgCl₂  +  H₂   
 
Options: Mg, H2, MgCl2, HCl

Back

HCl

Front

How many grams are in 7.8 moles of NaCl?

Back

452 grams

Front

Balance the reaction: CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

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1,2,1,1