I have a chemistry lab and quiz this week, I really need an exp.docx - I have a chemistry lab and quiz this week I really need an expert person who can

# I have a chemistry lab and quiz this week, I really need an exp.docx

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I have a chemistry lab and quiz this week, I really need an expert person who can do both A++ If you not expert, don't waste your and mine time lab_4.docx Question 14 pts Upload a picture of your Sodium Carbonate on the scale with the mass shown. This should be the stoichiometric mass needed. Upload
Choose a File Question 210 pts 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. Upload Choose a File Question 310 pts Use the conservation of mass and the balanced chemical equation to explain how much of each product should have been produced.
Question 42 pts 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 52 pts 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 62 pts 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 72 pts 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 82 pts
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 93 pts 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 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? 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. quiz_4.docx Chemical Equations A chemical equation is a recipe or equation for a chemical reaction. (remember a chemical reaction has reactants – starting material- that are rearranged to form one or more products). The number of each element on the reactant and the product side must be equal. This is the Law of Conservation of Matter . Since the number of each element must be the same on

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• Fall '16
• Christopher L. Litten, MA, Ph.D.

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