How do you calculate molarity and molality of a substance if you are given it's percent by mass and density

Q: 6. A student makes a solution that is 37.5% (by mass) perchloric acid in water. Determine the…

A: The ratio of moles of solute to the mass of solvent in (kg) is known as molality.

Q: Explain why oil and water do not mix in terms of solubility.

A: Given,  Why oil and water do not mix in term of solubility ?  Solubility is the number of moles of…

Q: molality of the 0.75 mol of salt (NaCl) dissolved in 155 g of water?

A: Given,  Moles = 0.75 mol Mass of solvent = 155 g = 0.155 Kg Molality = mole/mass of solvent(Kg)

Q: How many grams of a solution that is 5.2% sucrose by mass are needed to obtain18g of sucrose

A: From data's given  With given percentage of sucrose, mass of 18g is obtained as follows

Q: What happens to the boiling point of a substance when a nonvolatile solute is dissolved in it? Why?

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: The molarity of 25.0% by mass HCI solution is ? The density of HCI solution is 1.20 g/mL.

A: Molarity is defined as number of moles of solute present in one liter of solutions

Q: An aqueous solution of has a concentration of 50.1 (m/m)%. Convert this to units of molarity, given…

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Q: What happens to the freezing point of a substance when a nonvolatile solute is dissolved in it? Why?

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Q: What is the molality of a solution that contains 4.220 grams of potassium sulfate and 250. g of…

A: Given: mass of K2SO4 = 4.220g mass of water = 250 g                       =0.250 Kg We know, Molar…

Q: Given a 28.6% solution by mass of ethylene glycol in water, what mass of solution is needed to…

A: Given, Solution % = 28.6 % Mass of ethylene glycol = 10.0 g  Mass of solution = ? The formula used…

Q: What happens to the vapor pressure of a substance when a nonvolatile solute is dissolved in it?…

A: It measured the tendency of solvent to change into gaseous or vapour form,  it increases with…

Q: Calculate the percent by mass of a solution made from 12 g NaCl (the solute) and 64 g water.

A: Interpretation - The percent by mass of a solution made from 12 g NaCl (the solute) and 64 g water…

Q: How do I use the molality of a substance to calculate the molar mass? Example: molality is .122M of…

A: Given:Molality = 0.122 m = 0.122 mol/Kg.Mass of the solute = 0.346 g.Mass of solvent = 7.79 g =…

Q: Determine the new freezing point of a solution where the change in freezing point is 4.889 Celcius…

A: Since we have given the change in freezing point of solution is 4.889˚C and original freezing point…

Q: How many grams of HNO3 are in 61.1 g of a solution that 30.0 % HNO3 by mass?

A: Use mass% formula to calculate the mass of solute HNO3 in its solution:

Q: What is the molality of a solution that has been prepared by mixing 54.3 g of sodium chloride with…

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Q: A 0.250 mole sample of sucrose is diluted until its Molarity is 0.10 Molar. At that point, what is…

A: Given: Moles of sucrose= 0.250 mol Molarity= 0.10 M

Q: 85.0 g of solute is added to 450.0 g of solvent, what is the percent concentration of the solution

A: The concentration of a solute in a solution is its relative amount present.  It can be expressed in…

Q: solute will have the lowest freezing

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Q: How many moles of NaF are in 35.8 grams of a  48.5% by mass NaF solution?

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: A solution is prepared by dissolving 78.5 g of NaCl in 889 g water to make a total solution volume…

A: The mass pf NaCl = 78.5 g The mass of water = 889 g = 0.889 kgThe volume of solution = 925 mL =…

Q: What is the molality when 392 mL of water is mixed with 27.5 g of magnesium chloride?   Please…

A: Given information,     Volume of water = 392 mL     Mass of magnesium chloride = 27.5 g

Q: Approximately what will be the total solute molarity for a 0.53 M solution of C6H8O7?

A: To calculate the total solute molarity, we need to calculate the total number of ions that will form…

Q: Calculate the molarity of a solution made by dissolving 0.382 mol glucose in enough water to make…

A: Given, moles of glucose = 0.382 moles Volume of Solution = 1.32 L  Molarity = ?

Q: molality

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Q: A saturated solution of a compound contains .15g of solute in 100 g of water.  Is a second solution…

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Q: In a solution of chocolate milk, what is the solute? chocolate milk both chocolate and milk neither…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…