Asked by CHEM HELP
4 questions! I put stars next to the answers I think are right.
. In the following reaction, how many moles of FeO are needed to react completely with 1.6 mol of Al?
2Al (s)+ 3FEO (s)-> 3FE (s)+Al2O3 (s)
1.2, 1.8*, 2.4, 3.0
What is the maximum number of grams of PH3 that can form when 12.4 g of phosphorus reacts with 8.0 g of hydrogen to form PH3?
.86 g 13.6 g 90 g 270 g*
Lead oxide can be decomposed by heating. What is the percent yield of the decomposition reaction if 22.3 grams of PbO are heated to give 18.0 g of Pb?
2PBO -> 2PB+ O2
How many grams of CO are needed with an excess of Fe2O3 to produce 27.9 g Fe? Please show work.
. In the following reaction, how many moles of FeO are needed to react completely with 1.6 mol of Al?
2Al (s)+ 3FEO (s)-> 3FE (s)+Al2O3 (s)
1.2, 1.8*, 2.4, 3.0
What is the maximum number of grams of PH3 that can form when 12.4 g of phosphorus reacts with 8.0 g of hydrogen to form PH3?
.86 g 13.6 g 90 g 270 g*
Lead oxide can be decomposed by heating. What is the percent yield of the decomposition reaction if 22.3 grams of PbO are heated to give 18.0 g of Pb?
2PBO -> 2PB+ O2
How many grams of CO are needed with an excess of Fe2O3 to produce 27.9 g Fe? Please show work.
Answers
Answered by
bobpursley
no, what is (3/2)*1.6?
2P+H2>>2PH3, no
no work shown on last two.
2P+H2>>2PH3, no
no work shown on last two.
Answered by
CHEM HELP
Ah, so 1 would be 2.4?
As for 2, I've tried it again and I got 90g
As for 2, I've tried it again and I got 90g
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