0.500 M 40. How many moles of chloride ion (MWa=35.453 g/mol) are present in 0.900 L of a solution of CaCl₂ (MWccn=111.0 g/mol, MH20-18.02 g/mol)? Assume a pressure of 1.000 atm and T=298K. a) 0.900 moles d) 0.450 moles b) 0.556 moles e) 0.500 moles c) 1.11 moles

The vapor pressure of methanol at 21.20°C is 101.0 torr. What is the vapor pressure of a solution of 2.000 g of aspirin (MM = 180.15 g/mol) in 50.00 g of methanol (MM = 32.04 g/mol) at this temperature? Answer Options: A. 100.3 torr B. 3.885 torr C. 0.7187 torr D. 108.7 torr

an acetic acid solution is 4.00M and has a density of 1.04g/mL. what is the mass/mass percent concentration of HC2H3O2(60.06g/mol) a) 0.347%b) 0.375% c) 37.5% d) 23.1% e ) 36.0%

What is the molality of a 1.75M CaCl2(MM =111g/mol) solution? D(solution) = 1.27 g/mL

50.00 ml of 0.120 mol/L MgSO4 solution is made to be using MgSO4. 7H2O, which has a molar mass of 246.47 g/mol.  a. How many moles of solid MgSO4. 7H2O are required?

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QUESTION 7 Arrange the following aqueous solutions in order of increasing boiling point. 0.12 M K₂SO4 0.20 M C6H12O6 (glucose) O a. (lowest bp) 0.20 M C6H1206 <0.15 M Na3PO4 <0.12 M K₂SO4 (highest bp) O b. (lowest bp) 0.20 M C6H1206 <0.12 M K2SO4 <0.15 M Na3PO4 (highest bp) O c. (lowest bp) 0.12 M K2SO4 <0.20 M C6H1206 <0.15 M Na3PO4 (highest bp) O d. (lowest bp) 0.15 M Na3PO4 <0.20 M C6H1206 <0.12 M K2SO4 (highest bp) O e. (lowest bp) 0.15 M Na3PO4 <0.12 M K2SO4 <0.20 M C6H12O6 (highest bp) Click Save and Submit to save and submit. Click Save All Answers to save all answers. 0.15 M Na3PO4

How many moles of CaF2 are present in 0.025 L of 0.350 M CaF2 ? A) 0.00125 mol B) 0.0250 mol C) 0.00875 mol D) 0.1400 mol O A O B OD