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If a 20.0g sample of HF is dissolved in water to give 200mL of solution what is the concentration of this solution?
Wiki User
∙ 10y ago
concentration = molarity
molarity= moles/ volume (in liters)
H=1g
F= 19g
1gH+ 19gF= 20gHF
20gHF x (1 mol HF/ 20gHF) = 1mol HF
2.0x10^2ml= 200ml x (1L/1000mL)= .200L
Concentration= 1 mol HF/ .200L
Concentration= 5M
Wiki User
∙ 10y ago
Wiki User
∙ 8y ago100 g per litre, which is 2.5 M.
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