Answer:
5.87%
Explanation:
Mass fraction of a solution is the ratio of mass of the solute to the total mass of the solution (Note that it is the total mass of the solution, i.e the sum of masses of solvent and solute). Mass percent is mass fraction times 100.
Here, the solute is KF and its mass is 59.1g. The solvent as usual is 
and its mass is 947g. Therefore, the total mass of the solution (solution is the mixture of solvent and solute, here KF and ) is 59.1 + 947 = 1006.1g.
The mass fraction is the ratio of mass of KF to the total mass of solution = 
.
Thus, the mass percent is mass fraction × 100 = 0.0587 × 100 = 5.87 %
Answer:
Answer: A. 3 mol 3 mol Al:
Explanation:
Te given balanced chemical equation is :
According to the stochiometry :
A: 3 mol 3 mol Al:
3 moles of chlorine reacts with 2 moles of aluminium
B. 2 mol 3 mol :
2 moles of aluminium reacts with 3 moles of chlorine
C. 2 mol 2 mol Al
2 mol of aluminium produces 2 mol of
D. 3 mol 2 mol
3 moles of chlorine produces with 2 moles of
Thus the conversion factor not used for mole to mole calculations is 3 mol 3 mol Al:
Explanation:
Answer:
I think it's b if not then sorry
