I have a chemistry test tomorrow and I'm trying to study but none of these questions in the book make sense to me:(
Help!
1. Commericially available concentrated sulfuric acid is 95% H2SO4 by mass and has a density of 1.84g/mL. How many milliliters of this acid are needed to give 1.0 L of .1 M H2SO4?
2. 2.488g of an impure sample of Na3PO4 are dissolved in water and all of the PO43- ions are precipitated to give 1.796g of Ca3(PO4)2. What is the percentage of Na3PO4 in the original sample?
3. What is the molarity of a solution made by diluting 75.5 mL of .15M(molarity) of KOH to exactly 250 mL?
4. What volume of .10M HCL reacts completely with .45g Zn if the reaction products are ZnCl2 and H2?
please help=/
Thanks!
2 answers
Can someone help please? I'm not asking for answers, just how to go about them=/
Idk lol
2 answers