A chemist makes 320. mL of calcium sulfate (CaSO,) working solution by adding distilled water to 120. mL of a 0.0143 mol stock solution of calcium sulfate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. m mol

Q: A series of dilute NaCl solutions is prepared, starting with an initial stock solution of 0.100 M…

A: The question is based on the concept solutions. it involves calculation of molarity of the solution.…

Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0…

A: We have to predict the concentration in mmol/L.

Q: 2.58 L solution containing 1.58 mol L-1 hydrochloric acid (HCl) has been left on your bench. How…

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Q: You dilute 35.00 mL of 1.12 M K2SO4 to a volume of 250.00 mL of pure water. What is the…

A: The objective of the question is to determine the concentration of  in the diluted solution.

Q: 3. A series of dilute NaCl solutions is prepared, starting with an initial stock solution of 0.100 M…

A: Given that -  Molarity of stock Solution of NaCl = 0.100 M  Volume of stock Solution = 10 mL…

Q: difference in volume:

A:

Q: In this station, you will find 400.0 mL of a 0.500 M aqueous solution of calcium chloride. What mass…

A: Molarity of any solution is given by :Molarity =Number of moles of solute Volume of solution(in…

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

A: Given  Mass of MgSO3  = 17.8 gram  Volume of solution  = 100 mL                                  =…

Q: A chemist places 2.9764 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Given, Stock Solution 1 : mass of NaCl = 2.9764 g volume of flask = 100 mL Solution 2 : Volume…

Q: A sample of 7.89 g of Mg(OH)2 is added to 24.6 mL of 0.190 M HNO3. How many moles of HNO3 are…

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Q: Concentrated hydrochloric acid is available commercially as a 12 M solution. What is the molarity of…

A: The given problem can be solved by using the formula given below as; M1 V1 = M2 V2…

Q: Fill in the blanks: An environmental chemist analyzed the effluent from an industrial process known…

A: Since the benzoic acid has only 1 acidic H  Hence moles of NaOH required for complete neutralisation…

Q: A chemist needs 225 mL of 3.0 M HCl. What volume of 12 M HCl must be dissolved in water to form this…

A: Given: Volume of HCl (V1)=225 ml Molarity of HCl (M1)=3.0 M M2=12 M To find: V2 Solution: According…

Q: Solution BII. Calculate the volume of ~0.00100 M KMnO4 (Solution BI) needed to prepare 25.00 mL of ~…

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Q: Calculate the volume (mL) of 1.0M potassium carbonate (K2CO3) needed to prepare 5.0 g of the COBALT…

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Q: You dilute 35.00 mL of 1.12 M K₂SO₄ to a volume of 250.00 mL of pure water. What is the…

A: In chemistry, the term concentration is used to define the amount solute in given amount of…

Q: When 300.mL of acid was diluted to 600mL of the acid a 1.25mL solution of the acid was produced.…

A: When 300.mL of acid was diluted to 600mL of the acid a 1.25 M solution of the acid was produced.…

Q: A 12.5 mL portion of a base solution of an element from Group 2A is diluted to 500 mL, and the…

A: Initial volume of base solution (of elements group 2A ) = 12.5 ml  New Volume of base solution = 500…

Q: A 0.0955 M solution of NaNO₃ needs to be prepared through dilution. A 0.500 M stock solution will be…

A:

Q: A phosphate solution is prepared by mixing 0.2 M Monosodium phosphate (NaH2PO4) stock solution and…

A: Here, the final solution volume is 10 mL.

Q: Solution of magnesium chloride and sodium chloride are mixed to make brine commonly used to keep…

A: To calculate the concentration of ions from molarity we need to multiply the molarity by the total…

Q: An aqueous 2.00 M hydrochloric acid solution is prepared with a total volume of 0.350 L. The…

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Q: at a certain temperature,1.85 grams of barium hydroxide will dissolve to form 100.0 ml of a…

A: The given mass of barium hydroxide = 1.85 g The volume the solution = 100.0 mL = 0.100 L  The…

Q: If 41.3 g of CH,OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

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Q: 5.00 g of solid Al(NO3)3 was added to enough water to make a solution with a total volume of 100.0…

A: Molarity (M) :-  The number of moes of solute dissolved in one litre of solution is known as…

Q: An approximately 0.1 M NaOH solution is made by adding 4.0 g of solid NaOH to 1000 mL. of water. The…

A: Titration is a common laboratory method of quantitative analysis to determine the concentration of…

Q: 1. When you arrive at the lab, 2.0 M H2SO4(aq) and 2.0 M HC2H3O2(aq) will be present. You will need…

A: Since you have posted multiple questions, according to guidelines I am solving first one.If you want…

Q: You dissolve 9.9 mmol of sodium bicarbonate into a total volume of 4.31 mL. What is the molarity of…

A: Given : moles = 9.9mmol              Volume = 4.31mL  Molarity = moles ÷ volume

Q: n the laboratory, a student adds 14.0 g of silver nitrate to a 375 mL volumetric flask and adds…

A: Molarity of a solution can be calculated by dividing the number of moles of solute with the volume…

Q: A 0.0715 M solution of NaNO₃ needs to be prepared through dilution. A 0.500 M stock solution will be…

A: We have to prepare a 0.0715M 1L NaNO3 solution. Moles of NaNO3 in that 1L solution, = 1L×0.0715…

Q: A stock solution of 14.5 M nitric acid (HNO3) is available to you.  You have been told to make a…

A: Answer given as follows

Q: 13. A series of dilute NaCl solutions are prepared starting with an initial stock solution of 0.100…

A:

Q: The density of concentrated ammonia,  which is 28,0% w/w NH3, is 0,899 g/mL.What volume of this…

A: Given,  Weight percent of NH3 = 28.0% w/w  Density of NH3 solution = 0.899 g/mL  Final molarity of…