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 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 Mg F2 is

A: Mass of solution=75.85gMass Percent=22.4%Mass of solute(MgF2)=?

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

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Q: Which solution contains the largest number of chloride ions? 100.0 mL of 0.80 M NaCl 100.0 mL of…

A: Given solutions: 100.0 mL of 0.80 M NaCl 100.0 mL of 0.30 M MgCl2 100.0 mL of 0.30 M AlCl3 We have…

Q: Given 609 milliliters of 0.365 M Ca(NO3)2Ca(NO3)2, calculate the moles of solute present in this…

A: Answer :- A) 0.222 mol Molarity.                M = No. Of mole(solute)/ Solution(L)       609 mL…

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: A solution is prepared by dissolving 2.86 g KMnO4 in 75.0 mL of water. (Density H₂O = 1.00 g/mL).…

A: Mass percent is calculated using the mass of solute and total mass of solution .

Q: hat is the mass percent of sodium chloride in a solution prepared by adding 1.00 g of sodium…

A: Mass percent = mass of component X 100 / total mass of sample

Q: How many grams of KF are needed to prepare 175 mL of a 1.80 M solution? 0.315g…

A: Record the given data, The concentration of the solution in Molarity is 1.80 M The given volume is…

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

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Q: The data table below is used for the next two questions. For both questions, you're being asked…

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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: In order to prepare 50.0 mL 0f 0.100 M C12H22O11 sucrose you will add            grams of sucrose to…

A: Solution- To prepare 50.0 mL of 0.100 M sucrose solution, we need to use the formula: Molarity (M) =…

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: When dissolved in 0.500 L of water, which of the following would produce a solution with the…

A: The Given data in the question

Q: What is the molarity of an aqueous solution that is 5.50% by mass oxalic acid (C₂H₂O) and the…

A:

Q: %3D What mass of NaHCO3 is needed to make 20.0 mL of a 1.00 M solution? Molarity (M) = moles/ Liter…

A: Given: The volume of the NaHCO3 solution = 20.0 mL The molarity of the solution = 1.0 M We have to…

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: 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: 6.13%

A: Given , mass of solute  (NaBr) = 23.0 g    Mass of solution = 375 g Now calculate the  % of…

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: 3 g BaI2 is dissolved in 145.0 g of H2O. Calculate the percentage concentration (by mass) of BaI2.

A: Percentage concentration by mass = 100 x Mass of solute/mass of solution

Q: Determine the molarity of a KCI aqueous solution that is 35.0% by mass given that its density is…

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Q: 5.0 g sample

A: When the mass of a substance is given, the number of moles is calculated by dividing the given mass…

Q: The solubility of solid X is given below. What is the maximum percent recovery if a student wanted…

A: NOTE: Assuming that the initial temperature is 100 oC and the final temperature is 0 oC as per the…

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: The solubility of heptanol, CH3(CH₂)6OH, is 0.16 g per 0.10 L. What is the molarity of the solution?…

A: We use the below formula to find molarity; Molarity(M) = moles of solute(heptanol)volume of the…

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

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.