I need help with two Chemistry questions.
How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?
How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?

Question

I need help with two Chemistry questions.
How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?
How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?

booksforlife · Answer

Please tell me the steps or help me walk through them.

booksforlife · Answer

@chmvijay

booksforlife · Answer

@mathstudent55 @dan815

whpalmer4 · Answer

first, how many grams of H2SO4 are in 150 grams of 45.0 % by mass solution?

booksforlife · Answer

Never mind, I was able to set up a time for my teacher and me to go over this together. :)