Module 4...
rude-1
lab_4.docxUpload a picture of your Sodium Carbonate on the scale with the mass shown.
This should be the stoichiometric mass needed.
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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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Use the conservation of mass and the balanced chemical equation to explain how much of each product should have been produced.
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?
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The actual yield of the product is 72.8 g LiHCO3. |
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The theoretical yield of the product is 72.8 g LiHCO3. |
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The theoretical yield of the product is 117.8 g LiHCO3. |
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The percent yield of the reaction is 61.8%. |
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
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4 |
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6 |
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8 |
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10 |
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12 |
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)
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17.9 g |
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87.9 g |
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26.0 g |
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14.8 g |
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1.91 × 10–3 g |
Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O. Determine its empirical formula.
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HNO |
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H2NO2 |
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HN6O16 |
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HN16O7 |
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H2NO3 |
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?
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793 g |
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7.93 g |
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13.9 g |
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0.139 g |
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?
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Calcium is the limiting reactant and 47.1 g of calcium oxide are produced. |
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Oxygen is the limiting reactant and 24.4 g of calcium oxide are produced. |
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Calcium is the limiting reactant and 47.1 g of calcium dioxide are produced. |
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Question 103 pts
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?
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Manganese (II) chloride is the limiting reactant and 8.40 g of hydrochloric acid is produced. |
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Chlorine is the limiting reactant and 6.21 g of hydrochloric acid is produced. |
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Chlorine is the limiting reactant and 24.8 g of hydrochloric acid is produced. |
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Manganese (II) chloride is the limiting reactant and 36.3 g of hydrochloric acid is produced. |
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Water is the limiting reactant and 52 g of hydrochloric acid is produced. |
