a) What is the molality of a solution made by dissolving 10 moles of hydrogen peroxide, H₂O₂, in 10 kg of water? (b) How much sodium aluminum hydride (NaAIH₂), in grams, is needed to be dissolved to make a 1.5 L solution of 0.25 M aqueous NaAlH, solution? The molar mass of NaAIH, is 54.003 g/mol. (c) How much sodium oxalate (Na2C2O4), in moles, is needed to be dissolved in 5 L of water to make a 2.0 M aqueous Na2C2O4 solution?

Q: A 200.0 mL mini-can of a soft drink contains 22.5 grams of sucrose, C12H22O11. Calculate the…

A: Volume of solution = 200 mL  Given mass of sucrose = 22.5 g  We know that :-    Molarity = (Given…

Q: ₂ palladium depends on the pressure of H₂ gas applied, but in a more complex fashion than can be…

A: We are given with mass of H2 dissolved in Pd metal. We have to calculate molarity, molarity and mass…

Q: What is the molality of a solution prepared from 100g of aluminum phosphate dissolved in 1200 mL of…

A: Answer is explained below. To calculate the molality of the aluminum phosphate solution first we…

Q: a 1 molar solution of hcl in benzene has a freezing point of 0.4 celsius. Is HCl an electrolyte in…

A: Given that : We have to determine whether HCl is an electrolyte or not in benzene if 1M of HCl in…

Q: The freezing point of a 0.21m aqueous solution of H2SO4 is -0.796oC. i = 2.04 b. Is the solution…

A: Given, Molality (m) = 0.21 m □Tf = 0.796 °c Kf = 1.86 °c/m □Tf = i×Kf ×m i = 0.796/0.21×1.86 =2.01

Q: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm. Suppose 1.800…

A: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm.  vapor…

Q: The vapor pressure of methanol, CH3OH, is 94 torr at 20 °C. The vapor pressure of ethanol, C2H5OH,…

A: Raoult's law The law states that partial pressure of a solution is equal to  the mole fraction…

Q: Calculate the freezing point of a solution containing 50.0 g of NaCl in 5000 mL of water. Kf for…

A: b)

Q: . Suppose two beakers are placed in a small closed containerat 25°C. One contains 400 mL of a…

A: V1 = 400 ml of 0.1 NaCl V2 = 200 ml of 0.25 M of NaCl The volume increases since it is being…

Q: 0.263 g of an organic compound (a non-electrolyte) is dissolved in 20.0 g of cyclohexane (C6H12) and…

A: given that mass of cyclohexane  is (wB) = 0.263 grams  freezing point of Pure cyclohexane (solvent)…

Q: The concentration of NaCl(aq) in a beaker is 2.00 M. What is the molality of the NaCl solution?…

A: The Molarity of NaCl = 2.00 M Means moles of NaCl = 2.00 mol present in volume of 1 L water . So…

Q: What is the molality of a solution made by mixing 4.5 grams of KNO3 [ molar mass ( 101.1032 g = 1…

A: Molarity = moles of soluteVolume of solution (l)Solute is KNO3moles ofKNO3 = given weight (g)Molar…

Q: A solution of aqueous substance(molar mass 90.8g/mol has a molarity of 2.1M and density of 1.08…

A:

Q: What is the molality (m) of Br ions in 5.56 % by mass MgBr2(aq)? The molar mass of magnesium bromide…

A: given :-  % w/w of MgBr2 solution = 5.56%  molar mass of MgBr2 = 184.113 g/mol  To calculate :-…

Q: A solution of vinegar is 0.763 M acetic acid, HC2H3O2. The density of the vinegar is 1.004 g/mL.…

A: Given data,  molarity of acetic acid, HC2H3O2 = 0.763 M  Density of vinegar = 1.004 g/mL

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.