1.) How many moles of NaCl are present in 350mL of a 2M solution? 2.) How many millimoles of NaCl are present in 75mL of a 0.025M solution? 3.) You have a 250mM stock of Tris. What volume of this stock solution should be added to water to prepare 500mL of 7.5mM Tris?

Q: Calculate the mole fraction of the ionic species KCl in the solution. Express the concentration…

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Q: Molarity Calculations. Report answers with correct units and number of sig figs please. 1. How many…

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Q: How much calcium chloride (in grams) is needed to make 75.0 mL of a 0.730 M solution? The molar mass…

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Q: What mass of kclo3 is needed to make 433.2 g of a 5.9% by mass solution

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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: What is the molarity of a solution that is made 1.5 ml of a 6.0 M HN03 stock solution is diluted to…

A: Molarity = Moles of solute/Volume of solution(L)

Q: How many moles of NaOH are present in 333 mL of 0.955 M solution? (Don't forget to convert mL to L…

A: Molarity = Number of mole/Volume (L)

Q: how much water needs to be added to a 300 ml of 3.0 M solution to obtain a final solution with 2.0…

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Q: Grams per millilitre of NaCl are contained in a 0.250 M solution is O 0.0746 gm/mL 0.0146 gm/ mL…

A: Molarity is given by the number of moles per litre of the solution. Number of moles is given by the…

Q: What mass of KI is dissolved in 500.0 g of a solution that is 10.0% KI by mass?

A: mass of solution = 500.0 gmass percent = 10.0 %mass of KI = ?

Q: 11. Find the mass percent of CuSO4 in a solution whose density is 1.30 g/mL and whose molarity is…

A: Ans -  Option (C )  = 15.0%   Given - Density (d) = 1.30g/ml Volume (V) = 100ml Molarity     =…

Q: a. 3.40 g of potassium chloride dissolved in 14.4 g of water Percent by mass = % KC1 b. 3.40 g of…

A: Given Masses of KCl in different solutions.

Q: What mass of KI is dissolved in 900.0 g of a solution that is 75.0% KI by mass?

A: Mass percent of a solution is given by:

Q: What mass of a 0.66 m ammmonium nitrate (80.04 g/mol) solution will contain 0.15 mol of solute?

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

Q: 11.) A 10% solution of ammonia has a density of 0.960 g/mL. What is the molarity of this solution?…

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Q: What is the final molarity when 89mL of a 3.75M solution is diluted to 332mL? O A. 0.57M о В. 1.75M…

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Q: 1.Molarity shows the quantitative relationship between Group of answer choices A, number of moles…

A: The solution is a homogeneous mixture of solute and solvent. The solute is the least amount that…

Q: 1. What is the concentration (molarity) of a solution made from 0.62 moles of NaCl and 500mL of…

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Q: Hi I'm having difficulty in finding how many grams of solute are in this questions, thank you.

A: The concentration of a solution can be determined using the molarity of the solution. Molarity is…

Q: Determine the mass of solute and solvent in a 12.0% (m/m) solution in 52.3 g of solution.

A: Given ;  % m/m = 12.0 %  mass of solution = 52.3 g  To calculate :  mass of solute mass of solvent

Q: Calculate how many moles of Na2CO3 are in 32.0 mL of a 0.587 M solution of Na2CO3.

A: Molarity is the ratio of number of moles of solute to the volume of solution(in L)  Molarity =…

Q: How many grams of sodium carbonate are present in 25.7 mL of a solution that is 24.0% sodium…

A: Mass of solution can be calculated as follows:

Q: What mass of solution containing 2.00% sodium sulfate, by mass contains 1.50 g sodium sulfate?

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