Chemistry, 02.10.2020 15:01, Marcus2935
The chemical formula of a salt A, is written FexCly. ZH2O. A sample of this salt of 0.5 grams was dissolved in water. The resulting solution was poured into a chemical beaker containing silver nitrate. The precipitate formed, AgCl, was collected, dried and weighed, AgNO3 Calculate a) the number of moles of precipitate. AgCl, when it is known that its mass is 0.718 grams; b) the number of moles of chloride contained in 0.5 grams of compound A; c) the mass in grams of chloride ions present in 0.5 grams of compound A. ii. By dissolving in water a sample of 0.5 grams of the above compound A 25 ml of solution was obtained, which was then titrated with 25 ml of 0.02 M KMnO4 solution. The reaction that occurs in this case is as follows: MnO4 + 5Fe2 + + 8H → → Mn2 + + 5 Fe3 + + 4H20 Count: a) the number of MnO4 'moles that have entered the reaction; b) the mass in grams of Fe2 + ions in the sample; c) the number of moles of Fe2 + ions in it: d) the mass of water in 0.5 grams of compound A; e) the number of moles of water contained in 0.5 grams of compound A: f) the values of x, y and z in the chemical formula of compound A.
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Chemistry, 22.06.2019 02:00, bernicewhite156
Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.
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Chemistry, 22.06.2019 12:30, AlexRavenwood127
What metric units would you use to measure the thickness of a key
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The chemical formula of a salt A, is written FexCly. ZH2O. A sample of this salt of 0.5 grams was di...
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