Solutions. Why does a raw egg swell or shrink when placed in different solutions?. Some Definitions. A solution is a HOMOGENEOUS mixture of 2 or more substances in a single phase. One constituent is usually regarded as the SOLVENT and the others as SOLUTES. Parts of a Solution.
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Why does a raw egg swell or shrink when placed in different solutions?
A solution is a HOMOGENEOUSmixture of 2 or more substances in a single phase.
One constituent is usually regarded as the SOLVENTand the others as SOLUTES.
Add 1 Mole of Copper Sulfate
Add Enough water so that the SOLUTION has a volume of 1 L
Step 1: Calculate moles of NiCl2•6H2O
Step 2: Calculate Molarity
[NiCl2•6 H2O] = 0.0841 M
What mass of oxalic acid, H2C2O4, is
required to make 250. mL of a 0.0500 M
Step 1: Change mL to L.
250 mL * 1L/1000mL = 0.250 L
Step 2: Calculate.
Moles = (0.0500 mol/L) (0.250 L) = 0.0125 moles
Step 3: Convert moles to grams.
(0.0125 mol)(90.00 g/mol) = 1.13 g
moles = M•V
How many grams of NaOH are required to prepare 400. mL of 3.0 M NaOH solution?
1) 12 g
2) 48 g
3) 300 g
M = moles of solute Liters of solution
M * V = moles
3.0 mol/L * 0.400 L = 1.2 mol NaOH
1.2 mole NaOH x 40.0 g NaOH 1 mole NaOH
= 48 g NaOH
How would you make 500.mL of a 2.50M NaOH solution?
Step 1: Convert volume mL to L.
500.mL * 1L/1000mL = .500L
Step 2: Calculate number of moles NaOH needed.
moles = M * liters
moles = 2.50M * .500L = 1.25 moles NaOH
How would you make 100 mL of a .1 M NaOH solution from a 1 M stock solution?
(.1L)(.1M/L) =1M X
.01 L or 10 mL and add 90 mL of water