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Question CI.21: A metal (M) completely reacts with 34.8 mL of a 0.520 M HCl ...

A metal (M) completely reacts with 34.8 mL of a 0.520 M HCl solution to form MCl_3(aq) and H_2 (g). (4.1, 7.2, 7.4, 7.7, 8.6,10.7)

a. Write the balanced chemical equation for the reaction of the metal M(s) and HCl(aq).

b. What volume, in milliliters, of H_2 is produced at STP?

c. How many moles of metal M reacted?

d. If the metal has a mass of 0.420 g, use your results from part c to determine the molar mass of the metal M.

e. What are the name and symbol of metal M in part d?

f. Write the balanced chemical equation using the symbol of the metal from part e.

c21
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