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Chemistry, 03.09.2021 23:30 swampyseth220
14.48 mL of 1.161 M HC2H302 is diluted to 59.37 mL. a. How many moles of HC2H3O2 are diluted to 59.37 mL? b. What is the molarity of the diluted solution? 1 11​
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Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
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14.48 mL of 1.161 M HC2H302 is diluted to 59.37 mL. a. How many moles of HC2H3O2 are diluted to 59.3...
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