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159 solutions

Solution Stoichiometry

Q. A 56.0 mL sample of a 0.118 M potassium sulfate solution is mixed with 39.5 mL of a 0.104 M lead(II) acetate solution and the following precipitation reaction occurs: K2SO4(aq) + Pb(C2H3O2)2 (aq) → 2KC2H3O2(aq) + PbSO4(s) The solid PbSO4 is collected, dried, and found to have a mass of 0.992 g. Determine the theoretical yield.

Solved • Mar 13, 2020

Solution Stoichiometry

Q. The mass percentage of chloride ion in a 21.00 mL m L sample of seawater was determined by titrating the sample with silver nitrate, precipitating silver chloride. It took 42.22 mL m L of 0.2992 M M silver nitrate solution to reach the equivalence point in the titration. What is the mass percentage of chloride ion in the seawater if its density is 1.025 g/mL g / m L ?

Solved • Mar 26, 2020

Solution Stoichiometry

Q. If excess zinc metal is added to 100 mL of a solution containing 0.70 M AgNO3, how many grams of metal will be displaced? A. 3.8 B. 9.1 C. 0.070 D. 7.6 E. 5.6

Solved • Mar 17, 2020

Solution Stoichiometry

Q. With what volume of 5.00 M HF will 5.28 g of calcium hydroxide (molar mass = 74.09 g/mol) react completely, according to the following reaction? 2HF + Ca(OH)2 → CaF2 + 2H2O A. 14.3 mL B. 143 mL C. 713 mL D. 28.5 mL E. 35.1 mL

Solved • Mar 17, 2020

Solution Stoichiometry

Q. how many grams of iron(III) carbonate can be precipitated by the addition of solid sodium carbonate to 25.0g go a 12.5% iron(III) chloride solution?

Solved • Mar 16, 2020

Solution Stoichiometry

Q. If 4.0 mL of 0.031 M NaCl is mixed with 1.0 mL of 0.50 M HCl what is the molar concentration of NaCl in the mixture? Enter the numeric answer in decimal format, do not include units in this answer.

Solved • Mar 12, 2020

Solution Stoichiometry

Q. How many grams of Ag2CO3 (Molar mass = 275.75 g/mol) will precipitate when excess (NH4)2CO3 is added to 75.0 mL of 0.742 M AgNO3 solution

Solved • Mar 6, 2020