If I need 307mL of 2 Molar solution of KBr how many milliliters of solution must I take from a 8M solution that is already prepared?

Q: 1L of 25mM SDS solution is prepared by adding ml of 10% SDS solution to ml of water.

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Q: The quantity of sodium fluoride required to make 75 mL of a 10 ppm solution of sodium fluoride is…

A: In this question, we will determine the mass of sodium fluoride in mg unit which is dissolved in…

Q: You have a solution of NaCl that has a molarity of 2.652 M. You want to make a dilute solution of…

A: Given: The initial molarity of NaCl, (M1) = 2.652 M. The final molarity of NaCl, (M2) = 0.893 M. The…

Q: In the laboratory you are asked to make a 0.675 m barium sulfide solution using 12.8 grams of barium…

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Q: How many grams of NaCl do you need to make 250.0mL of 1.30 M solution?

A: It is given that 1.30 M solution of NaCl is present that has a volume of 250 mL, the grams of NaCl…

Q: Use floating decimal in your solutions but express all final answers to four (4) decimal places and…

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Q: The molecular weight of a substance is 162.03g. You wish to make 100mL of a 10mM stock solution. How…

A: The objective of the question is to calculate the amount of substance in milligrams needed to make a…

Q: 3.48M stock solution of table salt. How much of this solution (mL) would you need to use to make…

A: Initial concentration of stock solution, Minitial = 3.48 M Final concentration of solution, Mfinal=…

Q: A student wishes to prepare 200.-ml of 0.50 M glucose solution. What volume (mL) of the stock 1.0M…

A: This problem is related to the preparation of diluted solution from the concentrated solution. In…

Q: you want to make 0.875 L of a 0.990 M HCl solution.  How many mL of a 6.00 M HCl solution will you…

A: We are given with a 6.00 M solution of HCl.

Q: 6. The molecular weight of Potassium chloride (KCI) is 74.55 g/mol. How many grams would you need…

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

Q: How many grams of Cu(NO3)2 are in 3.00 liter of a 0.50 M solution?

A: Molarity = number of moles of solute / volume of solution in L  number of moles of solute = Molarity…

Q: An aqueous solution is1.983% by mass of sodium sulfite pentahydrate, Na2SO3∙5H2O. What is the…

A: Molarity is defined as the number of moles present in 1 liter of solution. It is given as: Molarity…

Q: water should be added

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Q: In the laboratory you are asked to make a 0.150 m cobalt(II) chloride solution using 15.9 grams of…

A: Given that:              Molality of Cobalt (II) chloride solution = 0.150 m…

Q: KOH and NaOH are dissolved in water to form a 2.48 molar solution. If 42.9 g of NaOH are used and…

A: Amount of KOH in the solution of KOH and NaOH is to be calculated. Given: Molarity of Solution of…

Q: Find the normality of sodium carbonate (molar mass = 106 g/mol) in a solution containing 0.212 g…

A: Given volume is 100 ml and mass of sodium carbonate is 0.212 g

Q: What is the molarity of a solution containing 15 g sulphuric acid in 150 ml solution? What is the…

A: Molarity: the number of moles of a solute dissolved in one litre of the solution is called molarity.…

Q: 200. milliters of a 3.75 Molar (M) NaCl solution diluted to 490.mL What will be the molarity of the…

A: Ans is 1.53M

Q: Solution of barium chlorate by measuring out 17.1 g of barium chlorate into a 50 volumetric flask…

A: Mass of barium chlorate=17.1 g  Molar mass of barium chlorate = 304.23 g/mol Moles = Mass ÷  Molar…

Q: What mass of sodium chloride and what volume of water are needed to prepare 5.00*102 mL of a .89% by…

A: The question is based on the concept of solution preparation. mass percentage is defined as amount…

Q: How many grams of NaCl do you need to make 250.0 mL of 1.30 M solution?

A: Given : concentration of solution = 1.30 M  And volume of solution = 250.0 mL = 250 / 1000 = 0.25 L…

Q: How many grams of copper (II) iodide, CuI2, are contained in 368 mL of a 0.276 M solution?

A: Given values -> Volume = 368ml = 368 ×10^(-3) ( 1 litere = 1000ml)…

Q: A doctor orders that a patient recieve 2.8 X 10^-3 mole of sodium chloride. The only solution…

A: Given: Amount of NaCl patient received = 2.8×10-3 mol Solution available contains 1.00 g per 100 mL…

Q: want to dilute my lab’s stock solution of 11M NaOH. I pour 18.0ml of the stock solution into a…

A: Given : M1 = 11 M V1 = 18 ml M2 = 2.2 M

Q: If I need 166mL of 1 Molar solution of KBr how many milliliters of solution must I take from a 9M…

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Q: In the laboratory you are asked to make a 0.667 m aluminum sulfate solution using 255 grams of water…

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Q: An experiment calls for 225 mL of 0.330 MNaCl solution. What mass of NaCl is required? Mass What…

A: Given - Molarity of NaCl solution = 0.330 M Volume of solution = 225 mL = 0.225 L a) First determine…

Q: How much solid zinc bromide should you add.

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Q: 75 ml from a 10 M solution of concentrate hydrochloric acid is diluted until the total volume of the…

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Q: moles of NaOH in 0.500 L of a 0.600 M NaOH solution

A: Given, Molarity = 0.600 M Volume = 0.500 L Formula, Molarity = (Moles / Volume) To calculate the…

Q: How many grams of aluminum oxalate, AlGo would be needed

A: Molarity = number of moles of solute/volume of solution (in L)  So,  Number of moles = molarity ×…

Q: Standard vinegar solutions are about 5% acetic acid by mass. What is the molarity of a 5% vinegar…

A: Vinegar is aqueous solution which contains small amount of acetic acid. Generally vinegar is used as…

Q: A chemist wants to make 100 mL of a 0.500 M solution of NaCl.  How many milliliters of the 1.2M…

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Q: You have a 2.50M solution of lithium nitrate (68.946 g/mol). What volume of solution would you need…

A: In order to solve this question, we will be using basic mole concepts and seeing the reaction of…

Q: 10. A solution is made by dissolving 17.8 g of magnesium sulfite, MgSO3, in enough water to make…

A: Mass of MgSO3 = 17.8 g  Volume of solution = 100 ml  Concentration (Molarity) of the solution (in…

Q: I have 345 mL of a 1.50 M NaCl solution. If I boil the water until the volume of the solution is 250…

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Q: 2 225 grams of Copper (I) Chloride (CUCI) are added to make a 1.25 L solution. 30 milhliters of this…

A: We calculate the initial molarity of the solution. Then we can use the dilution formula to calculate…

Q: In the laboratory you are asked to make a 0.350 m barium iodide solution using 15.9 grams of barium…

A: m is symbol for molality. molality = moles of solute / weight of solvent (kg) Moles of solute =…

Q: An experiment requires 150.0 mL a 0.255 M solution of MgCl2. How many grams of MgCl2 are required?

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Q: A solution of iodine has an iodine titer of 12.46 mg. What is the normality of the iodine solution?…

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Q: What volume of a 5.00 M NANO3 solution should you use to make 0.444 L of a 2.33 M NaNO3 solution?

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Q: Mix together 150.0 ml of a 1.50 mol / dm³ NaCl solution and 250.0 ml of a 0.750 mol / dm³ MgCl₂…

A: Volume of NaCl = 150.0 ml = 0.15 dm3 Concentration of NaCl = 1.5 mol/dm3 Moles of Cl- =  Volume…

Q: Dr. A wants to dilute 30.0 mL of 2.60 M H2SO4 to a new concentration of 0.700 M.  To what volume (in…

A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…