29 g of KOH is dissolved in 250. mL of water. What is the mass percent of KOH in this solution? (use the density of water 1.00g/mL) What is the concentration, expressed in molal (m), of this initial solution? What is the concentration, expressed in molar (M), of this initial solution? (assume that the addition of the KOH to the water did not change the volume, which is still 250.mL)

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: A solution of a particular type of sugar (molar mass = 342 g/mol) was prepared by dissolving 72.5 g…

A:

Q: What is the molality of 50.0 grams of KBr compound dissolved in 900.0 mL water.

A: We have to find the number of moles of KBr. As , Molality = Moles of soluteMass of the solvent (in…

Q: How many grams of iron(II) acetate are in 19.89 g of a 2.49 % by mass iron(III) acetate solution?

A: Given data :  Mass of iron acetate = 19.89 g  Mass percent =2.49%  Formula used :  Mass percent =…

Q: Which contains more solute particles: a 0.10 M aqueous solution of methanol (CH3OH) or a 0.10 M…

A: The strong electrolyte undergoes complete dissociation into their constituting ion. As the NaCl is a…

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: A solution is made from 19.10 g of an unknown solute in 500. grams of water. The solution has a…

A: Given, Given mass of unknown solute= 19.10 g Mass of solvent= 500 g= 0.5 kg Molar mass of unknown…

Q: molarity and molality

A:

Q: A solution of phosphoric acid, H3PO4, was made by dissolving 10.0 g of the acid in 100.0 ml of…

A:

Q: The density of a 5.58 m acetic acid is 1.04 g mL-. What is the molar concentration of this solution?…

A:

Q: 4. What is the effect of pressure on the solubility of gases in liquids?

A: Solubility is defined as the ability of a solid, liquid, or gaseous chemical substance to dissolve…

Q: 2. How does increasing the temperature of a solvent affect the solubility of a gas and a liquid?…

A: To solve this problem we have to know about the affect of temperature on Solubility of gas and…

Q: 3.21 g of potassium chloride dissolved in 30.2 g of water Percent by mass = % KCI 3.21 g of…

A:

Q: A living cell has a normal volume when placed in a solution having a concentration of 0.3 M. If the…

A: On basis of osmosis process we can predict what will happen to the cell.

Q: What is the molality of a solution that contains 2.16 g mL of chemical A (denisty = 1.43 g/mL and…

A:

Q: 5. Consider a solution composed of toluene (CHs) and benzene (C6H6) with volumes 50 mL and 125 mL,…

A: Volume (Toluene)=50 mL 1 mL= 1 cm3 Mass of toluene= Density x Volume Mass of toluene= 0.867 g/cm3 x…

Q: In step 1, we found that there are 3.25 moles of ethanol present in the 1.00 L of solution. The…

A: Given, Moles of ethanol=3.25 moles  Volume=1.00 L  Molar mass of ethanol=46.07 g mol-1 Mass of…

Q: 3. When a mass of 337 mg of an unknown compound was dissolved in 750mL of water, the solution's…

A:

Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 6.24 m and a density of 1.25…

A: m = M × 1000/ (d ×1000)-(M × GMM)  Where  M = molarity in mol /L = ? m = molality = 6.24 mol/ Kg  d…

Q: 12.0g of sodium hydroxide is dissolved in 2.5L of solution. What is the molar concentration of…

A:

Q: What will be the molality and molarity of a solution if a 5.7 grams of potassium nitrate is…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: Household ammonia used for cleaning contains about 4.5 g of NHs in 200 mL of solution. What is the…

A:

Q: What is the molality of a solution of 2.50 g sodium phosphate dissolved in 230g water?

A: Moles of solute ( Na3PO4 ) = 2.50164=0.015244 mol  Mass of solvent ( water ) = 230 g = 0.230 kg…

Q: The dissolution of KCI is an endothermic process, so heat is consumed in the process. You can write…

A:

Q: 2. Find Molality of a solution of KCI if it contains 6 grams of KCI in 1 kg of water.

A:

Q: 46. Calculate the normality of each of the following solutions. a. 0.250 M HC1 b. 0.105 M H₂SO4 c.…

A: Normality:normality of solution is the number of gram equivalents of solute dissolved per litre of…

Q: 17. Imagine one liter of a solution is create by combining 20.0 grams of sodium hydroxide (NaOH)…

A:

Q: A certain lonic compound. X has a solubility in water of 0.121 at 20. C. Calculate the mass of X…

A: Use the volume and the solubility of a compound to calculate the mass of X required.

Q: A solution of H, SO,(aq) with a molal concentration of 4.80 m has a density of 1.249 g/mL. What is…

A: Given : Molal concentration of H2SO4 =4.80m Density=1.249 g/mL Knowing the molal concentration, by…

Q: What is 2.7 x 10^-3 grams of lead (Pb) per gram of solution?a. 2.7 ppmb. 2700 ppbc. 2700 ppmd. 2.7…

A: ppm is parts per millionppb is parts per billion

Q: What is the maximum mass of potassium nitrate that can be dissolved in 500. mL of water at 60°C?

A: Solubility of a compound is expressed by the mass of that amount that can be dissolved in 100 g of a…

Q: A dioxin-contaminated water source contains 0.066 % dioxin by mass. How much dioxin is present in…

A: To solve this problem we will use the formula  % of dioxin = (mass of dioxin / mass of solution) ×…

Q: 3) 21.0 g of a nonelectrolyte is dissolved in 0.200 kg of water. The resulting solution freezes at…

A: Answer    Freezing point Tf  = Kf  × molality   Molality  = mass…

Q: Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL,…

A: The molarity of a solution depends on the number of moles of the compound and the volume of the…

Q: What is the molarity of a sucrose solution made by adding 171.0g of sucrose to 0.50L of water? Note:…

A: Given, mass of Sucrose = 171.0 g Volume of Solution = 0.50 L  Molar mass of C12H22O11 = 342.29 g/mol…

Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 4.45 m and a density of 1.25…

A:

Q: The molar mass will be 12.0 g/mol if a 10-g sample of unknown substance is dissolved in 100 g water…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: the density of a 3.539 M HNO3 aqueous solution is 1.150 g x mL-1 at 20 Degrees C. What is the molar…

A: Given Molarity = 3.539 M Density = 1.15 g/ml

Q: The solubility of nitrogen gas at 25 °C is 6.8 × 10-4 mol/L • atm. If the partial pressure of…

A: Applying Henry’s equation,S = k*PHere, P = 1 atmS = 6.8 X 10-4 mol L-1 The partial pressure of…

Q: таyers. layer is on top If molecular iodine (I2) is added to the test tube, predict which plve most…

A: Water layer is on top because water is less denser then carbon tetrachloride. Molecular iodine is…

Q: A solution containing 41.684 g of LiF (M.M. = 25.939 g/mol) per liter has a density of l1.391 g/mL.…

A: Molarity is defined as the moles of solute per litre of the solution. M=nV..........(1) where M:…

Q: Solubility graphs are constructed similar to the one below. For most solid substances, the…

A: The objective of the question is to explain the effect of temperature on solubility.

Q: carbonated soda being submerged in hot water

A: In this question we have to explain that the effect of a teaspoonful of vinegar in a bottle of…

Q: 4. A living cell has a normal volume when placed in a solution having a concentration of 0.3 M. If…

A: Osmosis is a process in which solvent molecules moves from lower concentration solution to higher…

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.