Ask Question
18 June, 03:48

If 255 g of water has 10.0 g of nacl dissolved into initially, how much nacl must be added in order to raise the mass percent of nacl by 10%

+2
Answers (1)
  1. 18 June, 03:57
    0
    Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. To calculate percent by mass, you need to determine two things: the mass of just the element, and the molar mass of the whole compound. We calculate as follows:

    .10 g NaCl / g NaCl + Water = (10.0 g NaCl + x) / (10.0 g + 255 g + x)

    x = 18.33 g NaCl needed
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “If 255 g of water has 10.0 g of nacl dissolved into initially, how much nacl must be added in order to raise the mass percent of nacl by 10% ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers