Calculate the vant hofffactor for na2so4
The freezing point depression constant for water is -1.86 ?C/m. If 5.00 g Na2SO4 is dissolved in 45.0 g H2O,the freezing point is changed by -3.82 ?C. Calculate the van't Hofffactor for Na2SO4.
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Calculate the pH after 0.120 g ofsolid NaOH is added to 150 mL of this buffer solution.c. If the acceptable buffer range of the buffer solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the b
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A mixture of NaCl and sucrose (C12H22O11) of combined mass10.2g is dissolved in enough water to make up a 250ml solution. The osmotic pressure of the solution of the solution is 7.32 atm at250C. Calculate the mass percent of NaCl in the solution.
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If the model tests are to be performed in a wind tunnel using standard air, what is the required air velocity in the wind tunnel?
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