What is the formula mass of calcium sulfate dihydrate [CaSO4⋅2H2O]?

Be sure to add the water of hydration, which is the 2H2O part (water surrounding the calcium sulfate).

136 g/mol

154 g/mol

164 g/mol

172 g/mol

172 is correct

Choose the statements about benzene that are correct. all benzene hydrocarbons are ChHp-2 All C-C bonds share 2 pairs of electrons, Three C-C bonds share 2 pairs of electrons, All of the C-C bonds are actually identical, The structure of the

Using the following equation 2C2H6 + 7O2 - - > 4CO2 + 6H2O if 2.5g C2H6 react with 170g O2, what is the limiting reactant?

How would you test for carbon dioxide and oxygen?

Which chemical equation demonstrates the law of conservation of mass! F. 2NO + 02 - 2NO G. PA + 3Na - Na3P H. 4NH3 + 5024NO + 6H20 3. Nal + Cl2 + 12 + NaCl

The most common charge that a nitrogen atom takes is - 3. If a nitrogen atom were to assume a - 2 charge, how many 2p electrons would the N2 - ion have?

How many moles of oxygen are in 0.53 moles of co 22?

The car wit fastest acceleration is the tempest. it has an acceleration of 6.1 m/s. suppose the car accelerates from rest to a final speed of 30. m/s. how long does it take the tempest to reach this speed?

What is the wavelength of 2.18*1016 hz wave?

Which of the following summarizes photosynthesis? A. glucose + carbon dioxide → oxygen + water B. carbon dioxide + water → glucose + oxygen + water C. oxygen + water → glucose + carbon dioxide + water D.

Explain the effects of nh3 and hcl on the cuso4 solution in terms of le chatelier's principle