Tính ph và xác định môi trường các dung dịch a) (H+)=0,001M
b) (h+)=0,00001M
c) (oh-)=0,01M
d) (oh-)=10^-7M

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Which of these natural resources is non-renewable a.corn b.wind c.geothermal d.natural gas

What is the pressure of 5.0 mol nitrogen gas in a 2.0 l container at 268 k (the universal gas constant is 0.0821 l•atm/mol•k) a. 55 atm b. 8.8 atm c. 0.018 atm d. 220 atm