Autum

A student wants to make a 5.00% solution of potassium chloride using .0377 g of the substance.What mass of water will be needed to make the solution?

well the easy way to balance is to see how many of each individual chemicals u have on the left side of the equation. so you have 5 H's 3 N's and 5 O's and 1 Ba(include any subscripts if there are any) But the number at the end of the equation is for each...

well if u have 100 g to start and half decays in 2 minutes so after 2 minutes u have 50 g then 4 minutes 25 grams then 6 minutes u have 12.5 g then 8 minutes u have 6.25 grams..you just divide ur original amount by two than that number by 2 (for every 2 m...

I don't want the answer just the formula please

I tried it!! I got 100%!!