If a chemist wishes to dilute a 1.000 x 103 mg/L stock solution to prepare 5.000 x 102 mL of a working standard that has a concentration of 3.500 mg/L, what volume of the 1.000 x 103 mg/L standard solution is needed? mL

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

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Q: 1. How many grams of NaCl are required to prepare 100 mL of a solution of 1 M NaCl

A: Applying formula of molarity M = n/Vin leter

Q: What volume (mL) of a 0.0833 M CuSO4 x 5 H2O solution is needed to prepare 250.00 mL of a 0.00422 M…

A: Since the moles of CuSO4X5H2O should be same in both the solutions as we are taking CuSO4X5H2O from…

Q: A 19 mL solution of 11.3 M HCl is diluted to 206 mL. What is the new concentration of the acid…

A: Dilution formula helps us to calculate the new concentration if the initial volume, initial…

Q: How many grams of Mg(NO3)2 are in 250.0 mL of a 5.00% (m/v) Mg(NO3)2 solution?

A: Solution:   Percentage mass by volume is a measure of concentration. It gives the ratio of the mass…

Q: What volume of stock solution do you need to prepare 50.00 mL of .0125 M HCl solution from 1.25 M…

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Q: What volume of a 0.716 M KBr solution is needed to provide 30.5 grams of KBr? O 822 mL O 42.7 mL O…

A: According to our policy we should solve one question ( If any subpart present then first three…

Q: 00.0 mL of a 0.780 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

A: Given that:        Initial concentration of the KBr solution = 0.780 M                    Initial…

Q: A potasium carbonate solution is 14.6% KCO3 by mass and has a density of 0.68 g/mL. Calculate…

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Q: You have 450 mL of a 0.125 M HCI solution and you want to dilute it to exactly 0.100 M How much mL…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: Commercial concentrated aqueous ammonia is 28.0% NH3 by mass and has a density of 0.900 g/mL. What…

A: We have given that   Commercial concentrated aqueous ammonia is 28.0% NH3  by mass density of 0.900…

Q: Ordinary household bleach is an aqueous solution of sodium hypochlorite. What is the molarity of a…

A: It is defined as number  of moles of solute devided by volume of solution in liter

Q: What volume of a 12.0 M HNO3 solution should you use to make 850.0 mL of a 0.250 M HNO3 solution?…

A: Molarity of solution , M1 = 12.0M Volume of solution, V1 = ? Molarity of solution , M2 = 0.250M…

Q: 100.0 mL of a 0.625 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

A: The process of dilution produces a solution with certain lower concentration of solute by adding…

Q: you are given 4 solutions: A. 15g of glucose in 500mL of water B. 600mL of 4% fructose  C. 0.9L…

A: As per the rules, only the first three sub-parts can be answered

Q: To what volume should you dilute 150.0 ml of an aqueous 6.00 M iron (II) bromide solution so that…

A: We are required to find out the volume to which 150.0 mL of 6.00 M of Iron(II) bromide solution is…

Q: You take 5.0 mL of a 1.50 M solution of sucrose and dilute it to 250.0 mL. what is the mass of…

A: First use dilutuon formula to get the Final molarity after dilutuon  Then use formula…

Q: Calculate the normality of 12.5 g of potassium permanganate (KMnO4) in 475 mL solution

A: The number, n = 5 for KMnO4 as it accepts 5 electrons to become Mn2+

Q: A student is asked to prepare 250 mL of a 0.0104 M NaCl solution. The student found a stock bottle…

A: Given: A student has to prepare 250 mL of 0.0104 M NaCl solution using 34.7 mL of 0.0723 M NaCl…

Q: How many milliliters of a 0.223 M Rb NO 3 solution contain 0.250 moles of Rb NO 3 ? 1.12 × 103 mL…

A: Data: Molarity of RbNO3 solution = 0.223 M Moles of RbNO3 = 0.250 moles   To find volume of solution…

Q: What is the mass in grams of NaCN in 120.0 mL of a 2.40 x 10-5 M solution? 49.01 g NaCN 2.40 x 10-5…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: Which of the following is not the unit of concentration? a. Mole/m³ b. Molar c. N/m³ d. pmm

A: Since we only answer one question at a time, we'll answer the first one. Please resubmit the…

Q: Describe how you would prepare 50 mL of a 5 mM NaCl solution from a 1 M NaCl stock.

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Q: What volume of a 1.00 M stock solution of glucose must be used to make 500.0 mL of a 1.75 x 10-2 M…

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Q: What volume of a stock solution of a 0.35 M Na2PO4 is needed to prepare 150 ml of a 0.2 M Na2PO4…

A: Given: Molarity of Na2PO4=0.35 M (Stock=M1) Volume=150 ml M2=0.2 M To find: Volume of stock solution…

Q: What volume of a 1.63 mass % solution of Mg(NO3)2 is needed to contain 0.316 grams of Mg(NO3)2. The…

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Q: 1. A blood serum sample is analyzed and found to contain 102.5 ug Ca2*/mL serum: The density of the…

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Q: How many liters of a 3 M NaOH stock solution would you need to make 504 mL of a 188 mM NaOH…

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Q: Your lab partner gets out a 100-mL graduated cylinder and a 100-mL beaker to prepare 100.00 mL of…

A: We already have a 1.201 M solution. We need to dilute it to make 100ml of 0.1201 M

Q: A 21.8 mL solution of 14.2 M HCl is diluted to 228 mL. What is the new concentration of the acid…

A: Given : Initial concentration of HCl = 14.2 M Initial volume of solution = 21.8 mL And final volume…

Q: How much NaCI (s) do you need to prepare 435 mL of a 2.5 % (m/v) NaCI solution?

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Q: H.W: 1- A solution of KCI (its volume 500 mL) contains 7.45 ppm KCI. Calculate its Molarity and…

A: Given,  Volume of solution = 500 ml =0.50 L ppm concentration of KCl = 7.45 ppm Molar mass of KCl =…

Q: What is the molarity of the solution that results from diluting 195 mL of a 11.1 M stock solution to…

A: Molarity of a solution is calculated as = no. of moles of solute / Volume of solution (in L) Now,…

Q: What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH?

A: 15% (m/v) NaOH solution We have to find volume (mL) of a 15% (m/v) NaOH solution contains 120 g…

Q: What is the mass % of isopropanol in a 2.13 M solution of isopropanol (MM = 60.10 g/mol) in water?…

A: Given :- Molar concentration of isopropanol solution = 2.13 M  Density of solution = 0.899 g/mL…

Q: what is the mass % of isopropanol in a 2.53 M solution of isopropanol (MM=60.10 g/mol) in water? The…

A: The term mass percentage is a method to represent the concentration of the elements in a given…

Q: What is the morality of a solution that contains 3.0 g KNO3 in 0.625 L of solution?

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: calculate the composition - mass/mass%  of 46.8g Kcl per (6.00x10^2 ml solution (d=1.14g/ml) ___…

A: % mass/mass = 100 x Mass of solute/Mass of solution Mass solution = Volume x density Given that:…

Q: What is the mass in grams of KBr in 0.400 L of a 0.350 M solution

A: Molarity = moles / volume moles = Molarity x volume            = 0.35 × 0.400 L moles = 0.14 moles…

Q: A solution 15%(m/m) Na3PO4. What volume of the solution do you need to get 7.5 g of Na3PO4?

A: The mass percent of a solute in a solution = (mass of solute/mass of solution) x 100 The mass of the…

Q: How many grams of solute are in 2000. mL of a 5.00 ppm solution ? The concentration will always be…

A: We will use conversion factor to calculate grams from ppm.

Q: If 1 L of AgNO3 solution is made by adding 900 mL of water to 100 mL of 2 M AgNO3, what is the…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: What volume (mL) is required from a stock solution of 1.98 M KNO3 to prepare a 750 mL solution of…

A: The correct option is:

Q: 1. What are the parts of a solution? A. water and salt B. solution and solute C. solvent and solute…

A: The homogeneous mixture of two or more substances is known as a solution.

Q: Calculate the number of grams of solute needed to make each solution.   a) 1.00 L of 1.59 M KNO3…

A: Number of grams of Solute to make each solution can be calculated as:

Q: You have 6.79 mL of  a 0.415 M aqueous solution of Sodium Bicarbonate (NaHCO3). You add all of this…

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Q: What volume of 0.48 M NaCI solution contains 175.6 grams of NaCl?

A: Given:  Mass of NaCl (solute),w = 175.6 g  Molarity of NaCl solution,M=0.48 M = 0.48 mol/L  We know,…

Q: What volume of an 18 M MgCl2 solution is required to make 197 mL solution of 2.69 M

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: When 17.4 ml I’d solute us dissolved in 25.0 ml of water, the volume of the solution become 28.2ml.…

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