A student determines the iron(II) content of a solution by first precipitating it as iron(II) hydroxide,...
A student determines the iron(III) content of a solution by first precipitating it as iron(III) hydroxide, and then decomposing the hydroxide to iron(III) oxide by heating. How many grams of iron(III) oxide should the student obtain if his solution contains 47.0 mL of 0.417 M iron(III) nitrate?
A student determines the chromium(II) content of a solution by first precipitating it as chromium(II) hydroxide, and then decomposing the hydroxide to chromium(II) oxide by heating. How many grams of chromium(II) oxide should the student obtain if his solution contains 36.0 mL of 0.507 M chromium(II) nitrate?
6 b) In the laboratory a student combines 46.6 mL of a 0.322 M potassium sulfate solution with 19.0 mL of a 0.503 M cobalt(II) sulfate solution. What is the final concentration of sulfate anion ? M 18 a) A 0.5655 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide ion is precipitated as AgBr by the addition of an excess of silver nitrate. The mass of the resulting AgBr is found...
titrations and limiting reactants A student is asked to standardize a solution of potassium hydroxide. He weighs out 0.907 g potassium hydrogen phthalate (KHCgH404 treat this as a monoprotic acid) It requires 28.6 mL of potassium hydroxide to reach the endpoint. A. What is the molarity of the potassium hydroxide solution?M This potassium hydroxide solution is then used to titrate an unknown solution of hydrobromic acid B. If 178 ml of the potassium hydroxide solution is required to neutralize 19.0...
The molar solubility of iron(II) carbonate in a 0.147 M iron(II) nitrate solution is M. Submit Answer Retry Entire Group 9 more group attempts remaining
1. A 0.4187 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride ion is precipitated as AgCl by the addition of an excess of silver nitrate. The mass of the resulting AgCl is found to be 0.9536 g. What is the mass percentage of chlorine in the original compound? ________% 2. A student determines the calcium content of a solution by first precipitating it as calcium hydroxide, and then decomposing the hydroxide...
For the following reaction, 5.73 grams of potassium hydroxide are mixed with excess phosphoric acid The reaction yields 5.58 grams of potassium phosphate potassium hydroxide (aq)+ phosphoric acid (aq)potassium phosphate (aq)+ water () What is the theoretical yield of potassium phosphate? What is the percent yield of potassium phosphate grams Submit Answer Retry Entire Group 2 more group attempts remaining For the following reaction, 3.11 grams of iron are mixed with excess oxygen gas. The reaction yields 2.91 grams of...
help please 16-18 A student measures the molar solubility of iron(III) sulfide in a water solution to be 1.04*10-18 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts remaining A student measures the molar solubility of silver chloride in a water solution to be 1.30x10-5 M. Based on her data, the solubility product constant for this compound is Submit Answer Retry Entire Group 9 more group attempts...
In the laboratory a student combines 36.8 mL of a 0.252 M sodium nitrate solution with 14.4 mL of a 0.533 M copper(II) nitrate solution. What is the final concentration of nitrate anion ? 331 M Submit Answer Retry Entire Group 9 more group attempts remaining
An aqueous solution of calcium hydroxide is standardized by titration with a 0.190 M solution of hydrochloric acid. If 19.4 mL of base are required to neutralize 22.9 mL of the acid, what is the molarity of the calcium hydroxide solution? M calcium hydroxide Submit Answer Retry Entire Group 4 more group attempts remaining An aqueous solution of hydrobromic acid is standardized by titration with a 0.155 M solution of calcium hydroxide, If 29.2 mL of base are required to...