SOLUTION: which set the ratios should be used to find the mass of potassuim (K) in 455 grams of KCN?
A. K/455=39/65
B. K/39=12/65
C. K/455=65/39
D. 39/KCN=14/455
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-> SOLUTION: which set the ratios should be used to find the mass of potassuim (K) in 455 grams of KCN?
A. K/455=39/65
B. K/39=12/65
C. K/455=65/39
D. 39/KCN=14/455
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Question 1069009: which set the ratios should be used to find the mass of potassuim (K) in 455 grams of KCN?
A. K/455=39/65
B. K/39=12/65
C. K/455=65/39
D. 39/KCN=14/455 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Weight of K is to the whole weight has the MW of K is to the whole MW.
That would be A
39 x455=65K
divide by 65 both sides
39 x 7 is K.
KCN has MW of 65
455 gms is 7 x 65
Therefore, the mass of potassium is 7x39.
