Multiple Choice
A sample of iron metal is placed in a graduated cylinder. It is noted that 10.4 mL of water is displaced by the iron. The iron is then reacted with excess hydrochloric acid to produce iron (II) chloride and hydrogen gas. Given the density for iron is 7.86 g/mL, how many grams of iron (II) chloride are produced in the reaction
Fe(s) + 2HCl(aq) FeCl2(aq) + H2(g)
A) 23.6 g
B) 47.2 g
C) 185 g
D) 3.00 g
E) 81.7 g
Correct Answer:

Verified
Correct Answer:
Verified
Q99: A copper wire has a diameter of
Q100: How many O atoms are there in
Q101: What is the mass of 0.0250 mol
Q102: Calculate the mass of excess reagent
Q103: An atom of helium has a mass
Q105: Vanadium(V) oxide reacts with calcium according
Q106: Calculate the mass of 4.50 moles of
Q107: A compound with an empirical formula of
Q108: How many moles of O are in
Q109: Calculate the mass of FeS formed