How many grams of NaOH (MW = 40.0) are there in 250.0 mL of a 0.175 M NaOH solution?

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?