Help pls To what temperature must 6.50 moles of gas have to be heated in a 15.0 container for it to exert a pressure of 7.50 atm?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Adilute aqueous potassium nitrate solution is

What are several ways to reduce the effect of friction