Calculate the volume percent of solute in each of the solutions. A solution made by adding 20.1 mL of methyl alcohol to enough water to give 485 mL of solution. % (v/v) = A solution made by adding 74.1 mL of ethylene glycol to enough water to give 215 mL of solution. % (v/v) = ୪୧ %

3. A solution of 30.0 % ethanol (C2H;OH) by weight has a density of 0.96 g/mL. Find its molality and molarity. 4. In a particular hospital, a doctor ask you to prepare 1.50 L of 2.75 M ethyl alcohol (C2HSOH) solution to disinfect the equipment needed for a major operation. How do you prepare the condition being asked by the doctor?

A 425ml solution contains 12.3% (v/v) of benzene. What volume of benzene is in the solution?

In an aqueous solution of sulfuric acid, the concentration is 7.21 mol% of acid. The density of the solution is 1.2033 g mL-1. Calculate the molal concentration of the H2SO4. Molality = i m H2SO4 Calculate the mass percent of the acid. % (w/w) H2SO4 Calculate the molarity of the solution. Molarity = MH2SO4

A 3.03-gram sample of a compound is dissolved in 250. grams of benzene. The freezing point of this solution is 0.51°C below that of pure benzene. What is the molar mass of this compound? (Note: Kf for benzene = 5.12°C/m.) Ignore significant figures for this problem. a. 30.4 g/mol O b.4.83 g/mol O c. 243 g/mol O d. 60.8 g/mol e. 122 g/mol

Isopropyl alcohol is mixed with water to produce a 37.0%37.0% (v/v) alcohol solution. How many milliliters of each component are present in 755 mL755 mL of this solution? Assume that volumes are additive.

What mass of HCI is needed to make 3000g of 30% solution?MW: H=1g/mol,CI=35g/mol

A solution is made using 84.7 g of toluene (MM = 92.13 g/mol) and 80.0 g of benzene (MM = 78.11 g/mol). What is the molality of the toluene in the solution? Tap here or pull up for additional resources Question 6 of 16 80 « DII FA A 10 1 4 7 +/- 2580 4 F11 3 6 m 9 0 401) F12 C Submit x 100

What mass of salt (NaCl) should you add to 1.76 L of water in an ice-cream maker to make a solution that freezes at -13.0 ∘C ? Assume complete dissociation of the NaCl and a density of 1.00 g/mL for water and use Kf=1.86∘C/m .     Please type answer note write by hend.

A sodium chloride solution may be used in a diet that is low in sodium. A NaCl solution is prepared by dissolving 25.0 g of NaCl in enough water to give a final volume of 500. mL. What is the mass/volume percent (m/v) of the NaCl solution?