The atomic mass of nitrogen is 14.01, hydrogen is 1.01, sulfur is 32.07, and oxygen is 16.00. What is the molar mass of ammonium sulphate [ (NH4) 2SO4]?

1. How many molecules are in 240g of sulfuric acid?

We have 2.8 meters of rope. how many centimeters is that?

Calcule la normalidad de una solución que contiene 26g de nitrato de cúprico disuelto en 1200 ml de solución.

Which of the following is the energy that comes from changes in an atom's nucleus? a. thermal energy b. nuclear energy c. light energy d. electrical

What happens to the radius of non metal atom when it forms an ion?

According to the modern atomic theory, are atoms divisible?

Running a mile involves

How many calories are there in a 255 Food Calorie snack bar? a. 1 x 103 b. 2.55 x 105 c. 1.07 x 103 d. 60.9 e. none of the above

What is the greatest amount of ammonia (NH3) in moles that can be made with 4.7 mol N2 and 6.9 mol H2? Which reactant is limiting? How many moles of excess reactant will be left after the reaction?

Which one of these elements is an alkaline earth metal