22. Calculate the number of moles of the indicated sub- stance in each of the following samples.
a. 4.26 X 10-3 g of sodium dihydrogen phosphate
b. 521 g of copper(I) chloride
c. 151 kg of iron
d. 8.76 g of strontium fluoride
e. 1.26 X 104 g of aluminum
29.

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

How does the viscosity of magma change as magma cools?