Exercise 4: Commercial acids and bases are aqueous solution with following properties, Calculate the Molarity and Molality of each reagent: Hints Substance HCI HNO3 H₂SO4 CH3COOH NH3 (a) Molarity (b) Molality= % Mass Density (g/ml) Molar Mass Molarity Molality 38 70 95 99 28 1.19 1.42 1.84 1.05 0.90 Moles solute Volume solution (L) Moles solute mass solvent (Kg) (c) Mass solvent = mass solution-mass solute 36 63 98 60 17

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Exercise 4: Commercial acids and bases are aqueous solution with following properties,
Calculate the Molarity and Molality of each reagent:
Hints
Substance % Mass Density (g/ml) Molar Mass Molarity Molality
HC1
38
HNO3
70
H₂SO4
CH3COOH
NH3
(a) Molarity=
(b) Molality=
95
99
28
1.19
1.42
1.84
1.05
0.90
Moles solute
Volume solution (L)
Moles solute
mass solvent (Kg)
(c) Mass solvent = mass solution-mass solute
36
63
98
60
17
Transcribed Image Text:Exercise 4: Commercial acids and bases are aqueous solution with following properties, Calculate the Molarity and Molality of each reagent: Hints Substance % Mass Density (g/ml) Molar Mass Molarity Molality HC1 38 HNO3 70 H₂SO4 CH3COOH NH3 (a) Molarity= (b) Molality= 95 99 28 1.19 1.42 1.84 1.05 0.90 Moles solute Volume solution (L) Moles solute mass solvent (Kg) (c) Mass solvent = mass solution-mass solute 36 63 98 60 17
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