4) choose the best answer. which of the following could not represent the percent composition of compound…

4) choose the best answer. which of the following could not represent the percent composition of compound xy? 18.50% x and 81.50% y 70.85% x and 29.15% y 45.72% x and 53.28% y 58.55% x and 41.45% y 5) choose the best answer.

4) choose the best answer. which of the following could not represent the percent composition of compound xy? 18.50% x and 81.50% y 70.85% x and 29.15% y 45.72% x and 53.28% y 58.55% x and 41.45% y 5) choose the best answer.

Answer

Explanation:

Step1: Recall percent - composition property

In a compound XY, the sum of the percent composition of X and Y must be 100%.

Step2: Check each option

For option 1: $18.50%+81.50% = 100%$. For option 2: $70.85%+29.15%=100%$. For option 3: $45.72% + 53.28%=100%$. For option 4: $58.55%+41.45% = 100%$.

Since all the given options have the sum of the percentages of X and Y equal to 100%, there seems to be an error in the problem - setup as none of these options can be excluded based on the basic rule of percent - composition in a binary compound. But if we assume there is a rounding - error tolerance in a real - world scenario, we need more information about the compound's molar masses etc. to make a determination. If we go strictly by the sum - to - 100% rule, all options are valid in theory.

Answer:

There is no correct answer among the given options based on the basic rule that the sum of percent - compositions of elements in a binary compound should be 100%.