Ask Question
3 July, 21:08

If 3.5 g of element X reacts with 10.5 g of element Y to form the compound XY.

what is the percent by mass of element X in the compound? The percent by mass

of element Y?

+3
Answers (1)
  1. 4 July, 01:04
    0
    The percentage by mass of element X is 25 %.

    The percentage by mass of element Y is 75 %

    Explanation:

    X + Y ⇒ XY

    3.5 g of element X + 10.5 g of element Y = 14g in total

    ⇒Element X : 3.5g / 14g = 0.25 ⇒ x 100 % = 25 %

    ⇒Element Y : 10.5 / 14 = 0.75 ⇒ x 100 % = 75 %

    The percentage by mass of element X is 25 %.

    The percentage by mass of element Y is 75 %
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “If 3.5 g of element X reacts with 10.5 g of element Y to form the compound XY. what is the percent by mass of element X in the compound? ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers