B
babygurl
Guest
1. The combustion of 3.42g of a compound known to contain only nitrogen and hydrogen gave 9.82g of NO2 and 3.85g of water. Determine the empirical formula of this compound. If the molecular weight was 32g/mole what is the true formula for the known compound.
2. Pentacarbonyliron [Fe(CO)5] reacts with phosphoruus trifluoride (PF3) and hydrogen according the following reaction:
Fe(CO)5 + 2PF3 + H2 --> Fe(CO)2(PF3)2 (H)2 + 3CO.
A. the reaction of 5.0 mol of Fe(CO)5, 8.0 mol PF3 and 6.0 mol of H2 will release ______ mol CO.
B. which reactant is in excess and how much is left after the reaction?
3. The percent composition by mass of an organic acid is: 32.01% C, 4.03% H, and 63.96% O. Given that the molecular mass of the organic acid is 150 amu, determine its molecular formula.
If you could please help answer these and show the work how you got them, I would really appreciate it.
2. Pentacarbonyliron [Fe(CO)5] reacts with phosphoruus trifluoride (PF3) and hydrogen according the following reaction:
Fe(CO)5 + 2PF3 + H2 --> Fe(CO)2(PF3)2 (H)2 + 3CO.
A. the reaction of 5.0 mol of Fe(CO)5, 8.0 mol PF3 and 6.0 mol of H2 will release ______ mol CO.
B. which reactant is in excess and how much is left after the reaction?
3. The percent composition by mass of an organic acid is: 32.01% C, 4.03% H, and 63.96% O. Given that the molecular mass of the organic acid is 150 amu, determine its molecular formula.
If you could please help answer these and show the work how you got them, I would really appreciate it.