Question

a mathxl.com Ryan Brydson Course De TEAS Test Fashion Now.... Macy's-Sh... Math 125 Online-01-Spring 2019-White Homework: class 10 homework Score: 0 of 1 pt 10.3.2 sasha tomlinsa HW ㅖ | 200120 (9 complete) ▼ Assigned Med How many grams of NaCl are in 50 mLof2% sodium chloride soluton? O A. 1250 g O B. 50 g OC. 19 O D. 12.5g

Answer 1

Answer :C 1g

2% Sodium chloride solution can be obtained by adding 2g of Sodium chloride( NaCl) into 100ml of water.

Volume of solution: 50 mL

Mass of NaCl..?

Concentration% = %(w/v) weight/ volume

2grams---- 100 mL

2g/ml/100= x/ 50 ml

2g/ml× 50ml/100= x

X = 1g