Question

Question ZZ What is the mass percent of vitamin C in a solution made by dissolving 8.00 g of vitamin C, CoH06 in 55.0 g of water 12.7% 87.3% 85.5% 14.5% Question 23 2 pts highest concentration of fluoride ions? Which of the following solutions will have (0) 0.10 MKF (ii) 0.10 M SF2 (iii) 0.10 M AIF3 (iv) 0.15 M MgF2 only (1) All are equal (i) and (11) only (iii) and (iv)

Answer 1

OS Answer -22 g Vitamin C mass - 89. H₂O= 55g mass % of Vitamin C a ases of Vitamin C X100 maes of Vitamin C+ O mais of tho) 2. ( ) x100e 800 212069866 8t5s 68126.95% 218406 So, answer is [ 12.7 % ] Answer -23% 1 KR k ttf .......... 01M.. OM zyrfa Sr2+ + Of Olom 280.1= 0.2M 22 m) Alfa Al 31 f3f" O, 10 M 3x0.10 M = 0,3M in Mg f rgt taf 0.15 M 2X 0,15 = 0.30M - So answer is in 4Q) ) H IS STM