Post by: newyorker26 on Nov 18, 2019
Question 1
A solution is prepared by adding 1.43 mol of KCl to 889 g of water. The concentration of KCl is ________ molal.◦ 1.61
◦ 0.622
◦ 622
◦ 1.27 × 103
◦ 1.61 × 10-3
Question 2
A solution is prepared by dissolving 16.4 g of benzene (C6H6) in 282 g of carbon tetrachloride
The concentration of benzene in this solution is ________ molal. The molar masses of 
and CCl4 are 
and 
respectively. ◦ 5.50
◦ 7.45 × 10-4
◦ 0.704
◦ 0.0550
◦ 0.745
Post by: abctaiwan on Nov 18, 2019
Answer 1
1.61Answer 2
0.745