Homework Help: chemistry

Posted by khloe on Tuesday, November 15, 2011 at 1:36am.

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 - DrBob222, Tuesday, November 15, 2011 at 2:08pm
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.

Answer this Question

Related Questions

Chemistry - 25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.0 degrees ...
Chemistry - 20.7mL of ethanol (density=0.789g/mL) initially at 8.2 degrees ...
chemistry - Given: hexane- -density at 25 degrees Celsius (.660g/ml) -Vapor ...
Chemistry - When 100 mL of Ba(NO3)2 solution at 25 degrees Celsius is mixed with...
chemistry - Calculate the theoretical amount of CaCl2 that would be required to ...
Chemistry - An aqueous solution with a density of 0.998 g/ml at 20 degrees ...
Chemistry - At room temperature, ethanol's density is 0.789 g/mL while water...
Chemistry - Flask A contains 500 mL of water at 25 degrees Celsius and flask B ...
Chemisrty - Calculate the theoretical amount of CaCl2 that would be required to ...
Chemistry - An aqueous solution with a density of 0.998 g/ml at 20 degrees ...

For Further Reading

First Name:
School Subject:
Answer: