C, to form bonds between each monomers
The answer to this question is 2 and 3
Empirical formula is the simplest ratio of whole numbers of components in a compound.
Assuming for 100 g of the compound
Cu As S
mass 48.41 g 19.02 g 32.57 g
number of moles 48.41 / 63.5 g/mol 19.02 / 75 g/mol 32.57 / 32 g/mol
= 0.762 mol = 0.2536 mol = 1.018 mol
divide by the least number of moles
0.762 / 0.2536 0.2536 / 0.2536 1.018 / 0.2536
= 3.00 = 1.00 = 4.01
once they are rounded off
Cu - 3
As - 1
S - 4
therefore empirical formula is Cu₃AsS₄
A. how fast something moves in a specific direction
Answer:
Approximately
.
Explanation:
Look up the density
of carbon tetrachloride,
, and glycerol:
- Density of carbon tetrachloride: approximately
. - Density of glycerol: approximately
.
Let
denote the gravitational field strength. (Typically
near the surface of the earth.) For a column of liquid with a height of
, if the density of the liquid is
, the pressure at the bottom of the column would be:
.
The pressure at the bottom of this carbon tetrachloride column would be:
.
Rearrange the equation
for
:
.
Apply this equation to calculate the height of the liquid glycerol column:
.