In an analysis, you need enough product to weigh accurately. If a tabletsample contains approximately 15 mg of Fe (MW= 55.845 g/mol), howmany tablets should you analyze to produce 0.25 g of Fe_2O_3 (MW=159.69 g/mol)? *10 tabletsO 11 tabletsO 12 tablets13 tablets14 tablets

Answered: Image /qna-images/answer/b71a63eb-eb37-4c93-aa36-bda40e2150a0.jpg

Answered: In an analysis, you need enough product…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 114E: a. Write die balanced equation for the combustion of isooctane (C8H18) to produce water vapor and...

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3.81 The particulate scale drawing shown depicts the products of a reaction between H2 and O2 molecules. (a) Draw a similar representation for the reactants that must have been present before the reaction took place. (b) Write a balanced chemical equation for the reaction, using the smallest possible whole number coefficients.
3.82 The particulate scale drawing shown depicts the products of a reaction between N2 and O2 molecules. (a) Draw a similar representation for the reactants that must have been present before the reaction took place. (b) Write a balanced chemical equation for the reaction, using the smallest possible whole number coefficients.
a. Write die balanced equation for the combustion of isooctane (C8H18) to produce water vapor and carbon dioxide gas. b. Assuming gasoline is 100.% isooctane, with a density of 0.692 g/mL, what is the theoretical yield of carbon dioxide produced by the combustion of 1.2 1010 gal of gasoline (the approximate annual consumption of gasoline in the United States)?
94. Baking soda (sodium hydrogen carbonate. NaHCO3) is often used to neutralize spills of acids on the benchtop in the laboratory. What mass of NaHCO3 would be needed to neutralize a spill consisting of 25.2 mL of 6.01 M hydrochloric acid solution?
You have a chemical in a sealed glass container filled with air. The setup is sitting on a balance as shown below. The chemical is ignited by means of a magnifying glass focusing sunlight on the reactant. After the chemical has completely burned, which of the following is true? Explain your answer. a. The balance will read less than 250.0 g. b. The balance will read 250.0 g. c. The balance will read greater than 250.0 g. d. The scales reading cannot be determined without knowing the identity of the chemical.
4.36 Sometimes students in chemistry labs determine percentage yields greater than 100%. Assuming there is no calculation error, how could this happen?
Aspirin, C6H4 (OCOCH3) CO3H, is produced by the reaction of salicylic acid, C6H4(OH)CO2H, and acetic anhydride, (CH3CO)2O (page 182). C6H4(OH)CO3H(s) + (CH3CO)3O(l) C6H4(OCOCH3)CO2H(s) + CH3CO2H(l) If you mix 100. g of each of the reactants, what is the maximum mass of aspirin that can be obtained
Given: Weight of silver chloride: 0.750g MW of silver nitrate: 170 g/mol MW of silver chloride: 143 g/mol mEq of silver nitrate: 0.170 Normality of silver nitrate: 0.105 N Unknown: Volume of Silver nitrate How much (mL) silver nitrate is required for the standardization? a. 4.995 b. 49.950 c. 49.590 d. 45.990
How many milliliters of silver nitrate is required in the standardization? If wt. of silver nitrate (precipitate) = 0.600 g mw of silver nitrate = 170 g/mol mw of silver chloride = 143 g/mol meq of silver nitrate = 0.170 initial volume of silver nitrate = 40 mL N of silver nitrate = 0.105 N Choices: A. 4.995; B. 49.950; C. 49.590; D. 45.990 I tried to compute for the required amount using 0.105 N but my answer isn't in the choices. Please help me, thanks!
A 163.0 mL aqueous solution of 50.0 mM CoCl2 is combined with 532.0 mL of aqueous 68.0 mM K3PO4. If the limiting reagent is completed consumed during this reaction, how many grams of solid precipitate will be produced? Express your answer in units of grams using at least three significant figures.
Mercury and bromine will react with each other to produce mercury (II) bromide:What mass of HgBr2(s) can be produced from the reaction of 5.00 mL Hg(l) (density = 13.6 g/mL) and 5.00 mL Br2(l) (density = 3.10 g/mL)? ((l) stands for liquid)
A sample contains FeS2. At the end of its gravimetric determination, BaSO4 is weighed and the percentage of Fe is being searched for. What is an expression for the gravimetric factor in this determination? (The formulas represent the formula weights) a) FeS2 / BaSO4 b) Fe /2 BaSO4 c) 2 Fe / BaSO4 d) FeS2 / 2 BaSO4 e) 2 FeS2 / BaSO4

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In an analysis, you need enough product to weigh accurately. If a tablet sample contains approximately 15 mg of Fe (MW= 55.845 g/mol), how many tablets should you analyze to produce 0.25 g of Fe_2O_3 (MW= 159.69 g/mol)? * 10 tablets O 11 tablets O 12 tablets 13 tablets 14 toblote