# chemistry

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The density of liquid water is 0.997 g/mL at 25 degrees Celsius.
a) Calculate the mass of 250.o mL (about a cupful) of water.
b) How many moles of water are in 250.0 mL of water? Use the result from letter a.
c) Calculate the volume that would be occupied by 2.000 mol of water at 25 degrees Celsius.
d) What mass of water is 2.000 mol of water?

• chemistry -

a) mass = volume x density
b) moles = grams/molar mass
c) grams for 2.00 moles H2O = moles x molar mass. Then mass = volume x density and solve for volume.
d) See part c.

• chemistry -

249.25

• chemistry -

yyu

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