If 100.0 ml of hci stock solution is used to make 500.0-ml of a 0.675 m hci dilution, what is the molarity of the stock solution ?

3.375 M.

Explanation:

It is known that the no. of millimoles of HCl before dilution = the no. of millimoles of HCl after dilution.

∵ (MV) before dilution = (MV) after dilution.

∴ M before dilution = (MV) after dilution / V before dilution = (0.675 M)(500.0 mL)/(100.0 mL) = 3.375 M.

If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .

So3 that’s what i think