How many molecules are there in 450 grams of Na2SO4

What is high air pressure?

A gas occupies 12.2 liters at 0.8 atm. What is the pressure if the volume becomes 15.6 L?

Is the atomic number the lesser or the greater of the numbers for each atom on the periodic table?

Do you think that the mole should be considered a base unit in the SI system? Explain why or why not.

What is the ratio of specific heat for carbon monoxide (co) at 625k?

For each example of a phase change, identify whether heat is absorbed from the surroundings or released into the surroundings. A popsicle melts on a hot day. Rubbing alcohol evaporates from the surface of the skin.

How are scientific questions answered?

How much heat is required to increase the temperature of 100.0 grams of iron from 15.0oC to 40.2oC? (The specific heat of iron is 0.46 J/g xoC).

An adhesive dealer receives an order for 3000 lb of an adhesive solution containing 13% polymer by weight. On hand are 500 lb of 10% solution and very large quantities of 20% solution and pure solvent.

How to convert moles 3.612 x 10^23 atoms Fe