Reference no: EM131113350
Question 1
Upload a picture of your Sodium Carbonate on the scale with the mass shown.
This should be the stoichiometric mass needed.
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Question 2
Upload a picture of your hand written calculations for this lab clearly showing the mass of sodium carbonate needed, the theoretical yield expected, and the percent yield obtained.
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Question 3
Use the conservation of mass and the balanced chemical equation to explain how much of each product should have been produced.
Question 4
A student runs the reaction: LiOH + CO2 → LiHCO3. The reaction consumes 45.0 g LiOH and produces 72.8 g of LiHCO3. Which of the statements concerning this reaction is true?
The actual yield of the product is 72.8 g LiHCO3.
The theoretical yield of the product is 72.8 g LiHCO3.
The theoretical yield of the product is 117.8 g LiHCO3.
The percent yield of the reaction is 61.8%.
Question 5
Balance the following equation using the smallest set of whole numbers, then add together the coefficients. Don't forget to count coefficients of one. The sum of the coefficients is ___ CH4 + ___ Cl2 → ___ CCl4 + ___ HCl
4
6
8
10
12
Question 6
Calculate the mass of FeS formed when 9.42 g of Fe reacts with 8.50 g of S.
Fe(s) + S(s) → FeS(s)
17.9 g
87.9 g
26.0 g
14.8 g
1.91 × 10-3 g
Question 7
Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. Determine its empirical formula.
HNO
H2NO2
HN6O16
HN16O7
H2NO3
Question 8
Suppose the theoretical yield in a reaction is 10.5 g and the percent yield is 75.5%. What is the actual yield of product obtained?
793 g
7.93 g
13.9 g
0.139 g
Question 9
What is the limiting reactant when 13.9 g of oxygen react with 33.7 g of calcium to produce calcium oxide and how many grams of calcium oxide are produced?
Calcium is the limiting reactant and 47.1 g of calcium oxide are produced.
Oxygen is the limiting reactant and 24.4 g of calcium oxide are produced.
Calcium is the limiting reactant and 47.1 g of calcium dioxide are produced.
Question 10
What is the limiting reactant when 31.3 g of manganese (II) chloride, 48.3 g of chlorine, and 25.7 g of water react to produce manganese (IV) oxide and how much hydrochloric acid is produced?
Manganese (II) chloride is the limiting reactant and 8.40 g of hydrochloric acid is produced.
Chlorine is the limiting reactant and 6.21 g of hydrochloric acid is produced.
Chlorine is the limiting reactant and 24.8 g of hydrochloric acid is produced.
Manganese (II) chloride is the limiting reactant and 36.3 g of hydrochloric acid is produced.
Water is the limiting reactant and 52 g of hydrochloric acid is produced.
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