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How much mass of CaCO3 is in a solution if its concentration is 2 mol·dm⁻³ and the volume is 4 dm³? (CaCO3 molar mass = 100 g/mol)
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800 g
What is the concentration of the diluted solution when 3 mol·dm⁻³ of solution in 6 dm³ is diluted to 15 dm³?
1.2 mol·dm⁻³
Which unit is used for concentration (C) in the formula C = n / V?
mol·dm⁻³
What remains constant during the dilution of a solution?
The number of moles
How do you calculate the concentration of a solution if you start with 60 grams of NaOH in 2 dm³ of water? (NaOH molar mass = 40 g/mol)
0.75 mol·dm⁻³
What is the relationship between the concentrations and volumes before and after dilution?
C1V1 = C2V2
If you mix two solutions with different concentrations but the same number of moles, how will the final concentration be affected?
The final concentration will depend on the total volume resulting from the mixture.
What is the final concentration if you dilute 5 mol·dm⁻³ of solution from 20 dm³ to 60 dm³?
1.67 mol·dm⁻³
How do you calculate the volume (V) if you know the moles (n) and concentration (C)?
V = n / C
What happens to the concentration of a solution when you add more solvent?
The concentration decreases.
What is the formula for concentration in terms of moles and volume?
C = n / V
What is the derived formula for concentration using molar mass and mass?
C = M / mV
If you have 73g of HCl in 10 dm³ of solution, what is the concentration? (HCl molar mass = 36.5 g/mol)
0.2 mol·dm⁻³
How do you calculate the number of moles in a solution given the concentration and volume?
n = C × V
If you have 6 moles of a substance in 2 dm³ of solution, what is the concentration?
3 mol·dm⁻³
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