1. If the concentration of a stock solution is 0.152 M, what is the concentration of 10.0 mL of the stock solution diluted into a 100-mL volumetric flask? Show your work.

Q: 30.0 g of K2Cr2O7 is completely dissolved in 50.0 g of hot H2O. This solution is then cooled to 20…

A: Mass of K2Cr2O7 = 30 g Mass of water = 50 g Mass precipitated out at 20°C = ?

Q: II. Standardization with KHP. Show the calculation for determining the approximate amount of KHP to…

A: Given,volume of NaOH used = 25mL = 0.025Lmolarity of NaOH used = MThe reaction between KHP and NaOH…

Q: In the lab, you used 2.0 mM FD&C Red Dye No. 40 solution. How much solid dye, molar mass 496.42…

A: Given, molar mass of solid dye = 496.42 gmol volume of red-dye-40 = 1.8 L concentration of…

Q: in problems 1 and 2 for problems 3-5. 1. a. Write the balanced equations for the half reactions…

A: We first calculate the moles of Mohrs salt present. And from that we can calculate the moles of…

Q: ▼ Part A 0.49 mol of LINO3 in 6.44 L of solution Express your answer using two significant figures.…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Then,

Q: In one trial of Part B of the experiment 0.108 g of a solid mixture of NaCl and NaNO3 was dissolved…

A: Answer:This question is based on stoichiometric calculation where by using the stoichiometric…

Q: Suppose you create a standard with an initial concentration of 60.0 percent alcohol by volume. You…

A: A standard with an initial concentration of 60.0 percent alcohol by volume is created. Then 5.00 mL…

Q: In the lab, you used 2.0 mM FD&C Yellow Dye No. 6 solution. How much solid dye, molar mass 452.36…

A: Molar mass of solid dye = 452.36 g/mol Volume of solution, V2 = 2L Molarity of solution, M2 = 4.89mM…

Q: In the lab, you used 2.0 mM FD&C Blue Dye No. 2 solution. How much solid dye, molar mass 466.36…

A: Answer :-  Given; 1) Molar mass of FD&C Blue dye = 466.36 g/ mol 2) Molarity of solution = 2.06…

Q: n aqueous ethanol solution 453.1 (mL) was diluted to 4.00 L, giving a concentration of 0.794 M.  The…

A:

Q: Exactly 23 100.00m

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Q: 2. In two steps, calculate the concentration of a dilute solution made by diluting 6.50 mL of a 7.30…

A:

Q: Can you help explain to me if the concentration and molarity of acetic acid in vinegar remains the…

A: Acetic acid has a formula CH3COOH. It is a clear colorless liquid Glacial acetic acid is corrosive…

Q: Sample 1 Sample 2 Unknown CaCl2 solution code (if any) 2 1. Unknown Code = 2. Volume of 0.100 M…

A: Answer: In this question we have to find out the moles of Sodium Phosphate consumed by performing…

Q: Say you wanted to diluted some by 10,000 times. Why is it better to proceed through a series of…

A: Dilution of a solution is done by adding more amount of solvent to it, which results in decrease in…

Q: Solute S has a distribution constant of 4.4 between water (phase 1) and hexane (phase 2). Calculate…

A:

Q: 3. When a solution of barium chloride (BaClaa) is added to a solution of sodium sulfate (NazSO4(aq),…

A: 1) A molecular equation is sometimes simply called a balanced equation. In a molecular equation, any…

Q: A researcher wants to determine the concentration of beta-carotene in carrots. She obtains a 0.554 M…

A:

Q: A researcher wants to determine the concentration of beta-carotene in carrots. She obtains a 0.558 M…

A: The objective of this question is to calculate the concentration of beta-carotene in Dilution C,…

Q: A student needs 50.0 mL of 4.08×10 -4 M FD&C Yellow Dye No. 6 solution. If the student has 2.00 mM…

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Q: Pre-Lab Exercises 1. If the concentration of a stock solution is 0.152 M, what is the concentration…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the nitrate concentration of a solution prepared by mixing 215 mL of 0.150 M KNO3 with 155…

A: To find the nitrate concentration of the solution, we need to calculate the total amount of nitrate…

Q: 49. The initial concentration of the solution HCI is 12 M. What would the volume of the initial…

A: The volume of the initial stock solution (V1) of HCl is: 50 mL (rounded to 1 significant…

Q: Why is it improper to fill a volumetric flask to the calibrated mark with solvent BEFORE adding the…

A: Given,Improper to fill a volumetric flask to the calibrated mark with solvent before adding the…

Q: 3. Calculate the volume (in mL) of 2.0 M HCI solution required to prepare 100.0 mL of a 0.6 M HCI…

A: When an acid solution is required to dilute to a new strength of definite volume then we have to use…

Q: What observations indicate that a chemical reaction has occurred. Break up the reactants into ions.…

A: It is given that the reaction is happening between potassium carbonate K2CO3 and hydrochloric acid…

Q: 1. Calculate the exact mass of CuCl₂ 2H₂O required to prepare 100.0 mL of a stock standard 0.2500 M…

A: Volume of stock standard solution of CuCl2.2H2O=100.0 ml = 0.1 LiterMolarity of stock standard…

Q: In the lab, you used 2.0 mM FD&C Red Dye No. 40 solution. How much solid dye, molar mass 496.42…

A: Given : Volume of solution = 6.30 L Concentration = 6.39 mM  Molar mass = 496.42 g/mol

Q: 1. Into a 250-mL beaker, use a pipette to precisely add 10.00 mL of the hydrogen peroxide, H2O2,…

A: In titration the volume of solution added from burette is to be calculate from the change in final…

Q: In this experiment, a series of solutions are prepared by combining multiple components into a…

A: We make use of the concept of concentration in this question. We proceed as follows-