What is the percent-by-mass concentration of KOH in a solution that is prepared by adding 18.0 g of KOH to 95.0 g of water? Multiple Choice 18.9% 15.9% 31.5% 5.28% 77.0%

Q: How many grams of solvent are needed to prepare a 0.275 m KCI solution that contains 9.625 × 10-3…

A: Given that  Molality of the KCl solution, m = 0.275 m Number of moles of KCl, = 9.625×10-3 mol The…

Q: How many moles of solute are there in the following solutions?

A: Molality = Number of moles of solute / Mass of solvent (kg)

Q: What is the mole fraction of solute in a 3.76 m aqueous solution? X solute =

A: The mole fraction of a component in the mixture is defined by the ratio of moles of that substance…

Q: What volume of a 1.5 M KOH solution is needed to provide 6.75 moles of KOH?     0.50 L     4.5 L…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: What mass of a 2.50% Mg(OH)2 solution by mass contains 45.0 g of Mg(OH)2?

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Q: What mass of NaOH is required to prepare 250.0 g of solution that is 8.00% w/w NaOH?

A: Given data is as follows: The mass of the solution = 250.0 g The mass percent (w/w) of the solution…

Q: How much distilled water must be added to a 25.00 mL 0.5104 M aqueous H2SO4 solution to prepare a…

A: Given, Volume of aqueous H2SO4 solution = 25.00 mL Concentration of aqueous H2SO4 solution = 0.5104…

Q: Calculate the mass percent of a solution that is prepared by adding 46.3 g of NaOH to 330 g of H2O.

A: Mass Percent of solution  = ( Mass of Solute / Mass of Solution )  * 100  Here  solute = NaOH…

Q: What is the molality of KNO3 in a solution prepared by dissolving 0.168 moles of KNO3 in 72.8 g of…

A: The molality is defined as the number of moles of solute dissolved in per kg of solvent.=>…

Q: O How many grams of a 15.2 % NAOH solutions are required to raise the concentration of a 150 g of an…

A: Given: Mass of initial solution = 150 g. Concentration of NaOH in initial solution (%(m/m)) = 8.4 %…

Q: In a solution, the solute is O always water always a solid the component of the solution in lesser…

A: A solution is a homogeneous mixture, composed of : Solute Solvent

Q: How many moles of solute are there in the following solutions?   1.80×10-1  m glucose solution made…

A:

Q: How much water is needed to prepare 100 mL of a 0.117 M solution of Ca(NO3)2 (164.09 g/mol) if 160 g…

A: Step 1: Calculate the moles of Ca(NO3​)2​ dissolved. Moles of Ca(NO3​)2​ = Mass of Ca(NO3​)2​ /…

Q: How many moles of Lil are contained in 258.6 mL of 0.0296 M Lil solution? 8.74 x 10-³ mol 1.31 x…

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Q: How to calculate the mass percent concentration of a solution of 0.14 g C13H22O11 in 75.55 g H2O.

A: The mass percentage of a solution is the grams of the solute present in the grams of the solution…

Q: How much MgCl, must you dissolve in water to prepare 20 mL of a 2.0 M solution?

A:

Q: A solution is prepared by dissolving 98.6 g of LICI in enough water to form 675 mL of solution.…

A: Given  Mass of LiCl = 98.6 gram  Volume of solution =  675 mL                                 =  675…

Q: What mass of sucrose, C11H22011, is needed to make 500.0 mL of a 0.200M solution? O 34.2 g O 100 g O…

A: Molecular formula = C12H22O11 Volume = 500.0 ml = 0.5 L Molarity of solution = 0.200 M

Q: How many grams of Magnesium Chloride is contained in a 0.50L of a 1.5M solution? o 0.0079 g 3 g o…

A: Given, Concentration of magnesium chloride solution = 1.5 M = 1.5 mol/L Volume of the solution =…

Q: What mass of potassium nitrate would have to be dissolved in 21.0 g of water in order to make a…

A: Strength of solution = 45% Mass of water (solvent) = 21g Solute = potassium nitrate (KNO3)

Q: How much distilled water must be added to a 25.00 mL 0.5104 M aqueous H2SO4 solution to prepare a…

A:

Q: The concentration of urea in a solution prepared by dissolving 16 g of urea in 30 g of H20 is % by…

A: Percent ratio of  mass of solute and mass of solution is known as mass percent concentration.

Q: You have a stock solution of 20% (w/w) Triton X-100, a viscous detergent often used to permeabilise…

A: 20%(w/w) means that 20 g of solute in the 100 g solution. Volume of the solution is, Volume = mass ÷…

Q: A 1.00 % by mass solution of lactose (C12H22011, 342.30 g/mol) in water has a density of 1.0602 g/mL…

A: Given, density of Solution = 1.0602 g/mL Mass % lactose = 1.00 %  Molar mass of lactose = 342.30…

Q: Given this table find the missing values for each compound.  Solute Mass of solute Moles of solute…

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Q: Calculate the molarity of a concentrated solution of hydrochloric acid that i by mass HCI; the…

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Q: If 2.20 kg of solution contains 0.59 kg of solute, what is the percent by mass concentration? 0.27%…

A: The objective of this question is to calculate the percent by mass concentration of a solution. The…

Q: How many moles of solute are there in the following solutions?   1.80×10-1  m glucose solution made…

A: Molality (m) is used to express the concentration of a solution.It is defined as the moles of solute…

Q: How many moles of NaOH are present in a 0.881 mol/kg of NaOH solution if there is 350 mL of  water…

A: Molality: The number of moles of the solute dissolved in one kilogram of the solution is known as…

Q: How many moles of CoCl3 are in 172.6 ml of a 19.6 mass % solution of CoCl3 which has a density of…

A: We have volume of solution as 172.6 mL, having density of 1.206 g/mL . We have 19.6% mass percentage…

Q: 25.0 % (w/w) solution of aqueous HCl.

A: Chemical reactions are written in terms of moles of reactants and products. Different concentration…

Q: What is the molarity of a solution made by dissolving 4.57 mol NaCl in water to make 1.93L of…

A: Molarity of a solution is given by the number of moles of solute(NaCl here) per unit volume of…

Q: A 16.9 gram sample of KCl is used to make a 250. mL KCl solution. What is the molarity of the KCl…

A: Mass of KCl and volume of KCl solution are given whose molarity is to be determined.

Q: find the concentration in terms of molarity if this solution is diluted to 0.75 L

A: Volume (V) = 0.75 L Weight of non electrolyte (solute) = 60 gm Molar mass of solute (MM) = 200…

Q: What volume of 4.0 M NaCI must be diluted to prepare 10.0 L of 0.1 M NaC? 25 L O 0.4 L 2.5 L O 0.25…

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Q: How many moles of NaOH are present in 25.0 mL of a 0.1000 M NAOH solution? O 0.100 mol O 100 mol O…

A:

Q: How many moles of solute are there in the following solutions?   1.80×10-1  m glucose solution made…

A:

Q: What is the mass percent of Na₂SO4 in a solution made by dissolving 16.0 g Na2SO4 in 232.0 g H₂O? %…

A: The mass of solute  = 16.0 gThe mass of solvent  = 232.0 gThe mass percent of  = ?

Q: What volume of 12 M HCI is required to prepare 16 L of 0.25 M HCI? 250 mL 333 mL 768 mL 585 mL O 130…

A:

Q: What mass of NaHCO (84.0 g/mol) is needed to prepare 500.00 mL of 0.050 M Na solution? 1. 05.04 g 2.…

A: Given that -  Molarity of the Solution of sodium  = 0.050 M  One sodium given by one Molecule of…

Q: A solution is made by dissolving 17.8 g of magnesium sulfite, MgSO3, in enough water to make exactly…

A: Molar mass of magnesium sulfite = 104.4 g/ mol  Molarity = moles / Volume (L)

Q: Calculate the grams of solute needed to prepare each of the following solutions. 300.0 mL of a…

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Q: Which of the following substances would you expect to NOT be soluble in water? AgNO3…

A: According to solubility rules,(1) All nitrates are soluble. So, AgNO3 is soluble.(2) All sulfates…

Q: calculate the molarity of a solution made by adding 5.53 g of CaCl2 to enough water to create a…

A: The molarity expression is as follows,

Q: What volume (L) of 0.500 M KCl solution contains 25.0 g of KCl?   0.671 0.335 5.96 0.168 none of the…

A: Given-> Molarity = 0.500 M Weight of KCl = 25.0 gm

Q: Solution Volume of Solute Mass of Solute Volume of Water (if liquid) to be Added A. 5% by volume,…

A: Concentration of a solute can be expressed in terms of volume by volume percentage. Write the…

Q: What is the percent by mass of 50 grams of NaCl dissolved in 50 grams of water ? O1% 2 % 100 % 50%

A:

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.