Lead will react with hydrochloric acid to produce lead (II) chloride and hydrogen. How many moles of hydrochloric acid are needed to completely react with 0.36 moles of lead?
How would I go about solving this problem?
2007-12-10 11:37:57 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Write the balanced equation-
Pb + 2HCl --> PbCl2 + H2
The ratio of moles of Pb to moles of HCl = 1 : 2 (per the balanced formula)
2 x 0.36 = 0.72 molws of HCl
2007-12-10 11:43:28 · answer #1 · answered by skipper 7 · 0⤊ 0⤋
the way to do it is to first balance the equation so that molecules on both sides are even. then you convert the given information to moles then use a molar ratio to see how many moles your answer has, then convert moles to grams using the molar masses of what you are trying to find. it is probably in the book!
2007-12-10 19:41:17 · answer #2 · answered by Topher 2 · 0⤊ 0⤋
I can't fully remember but I believe you nedd the mole to mole ratio in order to complete the problem. Find the molar mass first though.
2007-12-10 19:42:30 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Pb + 2HCl ===> PbCl2 + H2
0.36molPb x 2molHCl/1molPb = 0.72 mole HCl
2007-12-10 19:41:54 · answer #4 · answered by steve_geo1 7 · 0⤊ 0⤋