CO2 + 2LiOH --> Li2CO3 + H2O How many moles of Li2CO3 are required to react with 20 mol of CO2?
What is 20 mol LiOH?
Mg + 2HCl --> MgCl2 + H2
How many grams of hydrogen will be produced if we start with 2 moles of hydrochloric acid and excess magnesium?
What is 2 g H2?
Mg + 2HCl --> MgCl2 + H2 What mass of hydrogen is produced from the reaction of 75 g HCl (MM=36.5 g/mol) and excess Mg?
What is 2.0 g H2?
N2 + 3H2 --> 2NH3 In the reaction above, a student reacted 28 g of nitrogen with an excess of hydrogen. According to the students measurements, the reaction produced 30 g of product. The theoretical yield was 34 g. What is the student's percent error?
What is 11.7%?
The measured amount of product obtained after performing a chemical reaction.
What is actual/experimental yield?
How many atoms are in a mole?
What is 6.022 x 10^23?
4 Al + 3 O2 --> 2 Al2O3
How many moles of aluminum atoms are needed to combine with 1.58 mol of oxygen molecules to make aluminum oxide?
What is 2.1 mol Al?
CH4+4Cl2→CCl2+4HCl
How many grams of HCl are produced by the reaction of 100.0 g of CH4?
911 grams HCl
4 Al2O3 + 9 Fe -->3 Fe3O4 + 8 Al
Aluminum oxide reacts with iron to form Fe3O4 and Aluminum. Determine with limiting reactant when 5 moles of aluminum oxide reacts with 7 moles of iron.
What is iron?
The difference between your experimental yield and theoretical yield, calculated using a formula.
What is percent error?
3 H2 + N2 --> 2 NH3
Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?
What is 4 mol NH3?
2 NH3 --> N2 + 3 H2
Ammonia decomposes to produce nitrogen and hydrogen gases. How many grams of H2 can be formed by the decomposition of the mass of 25 grams of NH3?
What is 4.45 grams of H2?
2 Ga2O3 → 4 Ga + 3 O
How many grams of Gallium would be produced from 250 grams of gallium oxide?
What is 186 grams of Gallium
Write the complete balanced equation for the following reaction:
___ LiOH + __H2SO4 -->___ Li2SO4 + ___H2O
What is: 2LiOH (s) + H2SO4 (aq) --> Li2SO4 (aq) + 2H2O (l)
__H2 + __O2 --> __H2O
Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water?
Balance and then find your answer.
What is 2.5 mol O2?
How many moles are present in 34 grams of Cu(OH)2?
What is 0.35 mol Cu(OH)2?
4 NH3 + 5 O2 --> 4 NO + 6 H2O
How many grams of O2 are needed to fully react with 2.5 grams of NH3?
What is 5.9 grams of O2?
__ H2 + __O2 --> __ H2O
Balance the equation and find out how many grams of H2O could be produced from 50 grams of O2
What is 14.08 grams of H2O?