How do you prepare 25 ml of 8.5 mM NaCl from a 20% NaCl stock (convert 20%→g/ml → molar)? What is the molarity of the NaCl stock solution? Answer M Add Answer μl of stock, dissolve, and bring it up to 25 ml with water. 2 20 0.342 3.42 0.0125 0.001 62 42.5 0.31 0.062 0.00342

How do you prepare 25 ml of 8.5 mM NaCl from a 20% NaCl stock (convert 20%→g/ml → molar)? What is the molarity of the NaCl stock solution? Answer M Add Answer μl of stock, dissolve, and bring it up to 25 ml with water. 2 20 0.342 3.42 0.0125 0.001 62 42.5 0.31 0.062 0.00342

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 120 110 NaNO, Mass of Unknown Solute That Dissolves in 100 g Water 100 90 80 Trial 30°C 40°C 50°C…

A: Given that, Average solubility unknown solute in 100 g water at 30°C = 45.4 g Average solubility…

Q: If you mix 15 mL of 0.525 M KI and 20 ml of 0.015 M KCI in a 50-mL volumetric flask and dilute to…

A: Given that, Volume of 0.525 M KI solution = 15 mL = 0.015 L Miles of KI in 0.015 L = 0.525 M× 0.015…

Q: Determine the amount in grams of KCI that exists in 20.3 g of a solution that contains 1.14 % KCI by…

A: Provided amount(mass) of solution=20.3g %of KCl(solute) present in solution=1.14%(by mass) Since, %…

Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…

A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…

Q: Part A: Determination of Densities of Pure Water and Calcium Chloride Solutions (1) Temperature of…

A: Concept used: Density = mass VolumeSpecific Gravity =Density of solutionDensity of reference

Q: Mass of empty dish: 38.386 grams Volume of 0.0400 M stock solution: 5.00 mL Mass of Dish and…

A: Molarity of a solution is moles of solute present in one litre of solution. Molality of a solution…

Q: A student was asked to calculate the mass of NaCI (in g) needed to create 500 g of 10 % NaCl…

A: no not correct

Q: 21. A 400.0 mL solution contains 15.0 g of ethanol (C,H,O). What is the concentration (in M) of…

Q: Which state of matter is NaNO3 in? O Solid O Liquid O Gas O Plasma

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

Q: 1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at

A: Note: Dear student as per the guidelines only the 1st quetions is allowed to answer. from ideal gas…

Q: can you help me with this and line it up exactly in the order i keep trying but its not being…

A: Given that - Volume of the solution = 155 mL Molarity = 0.762 M And, molar mass of FeCl3 = 162.2…

Q: Please help me solve

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

Q: one Trial two KIO3 solution taken (mL) 1.70 16.5 Moles of KIO3 1.06 x 10^-3 1.06 x 10^-3…

A: We have find out solubility and solubility product of Ca(Io3)2 for first and second filtrate.

Q: (Q16) What is the mass percent of NaCIO in 0.97M bleach sample? (Molar mass of NaCIO=74.5 g/mol,…

A: Given that Molarity of bleach sample=0.97M Molar mass of NaClO=74.5g/mol Density of bleach…

Q: What is the final volume in millilitres when 0.575 L of a 38.5 % (m/v) solution is diluted to 21.7%…

A: -> From dilution moles does not change . Initial volume (V1) = 0.575 L = 575 ml (1L=1000ml)…

Q: What is the volume (in mL) of a solution that uses 9.35 g of NaOH to prepare a 0.340 M solution?…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: 160.0 mL of a 0.300 M Ca(C₂H3O2)2 solution is diluted to 1.50 L. What is the molarity of the diluted…

Q: What is the number of moles of glucose (C₂H₂O) in 0.500 L of a 0.40 M solution?

Q: What is the molarity of this solution? (Assume a density of 1.02 g/mL.) Express your answer in…

A: Given solution = NaOCl Percent by mass = 4.00 % Density of solution = 1.02 g/ml We need to…

Q: Trial 1 Trial 2 Trial 3 Moles HCI (mols) (Use the balanced equation to 7. create a mole ratio to…

A: We know, molarity of solution (here HCl ) = moles of HCl / volume of HCl solution…

Q: Determine the mass of solute (in g) contained in 250.0 mL of a 1.77 M solution of AlF3. g AlF3

A: Molarity is defined as the number of moles of solute present in one liter of solution.

Q: A solution consists of 35.00 g of Cuso, dissolved in 250.0 mL of water. The molar mass of Cu is…

Q: How many grams of nickel(II) nitrate, Ni(NO3)2 , are required to make a 8.96 %(w/v) aqueous solution…

Q: Zoom Day 24 1.ldentify the solute and solvent in each of the following weiter b. carbonated water…

Q: solution please. ASAP (the average molarity of acetic acid) = 0.697M) The assembly line is supposed…

A: Given data isThe average molarity of acetic acid = 0.697MThe assembly line is supposed to produce…

Q: What is the molality of lithium ions in an aqueous solution made up of 0.302 m LI:PO. assuming the…

A: Given: The molality of Li3PO4 is 0.320 m.

Q: What is the mass in grams of NaCN in 120.0 mL of a 2.40 x 10 M solution? STARTING AMOUNT ADD FACTOR…

A: Given: Volume of solution = 120 ml = 0.120 L Molarity of solution= 2.40 × 10-5 M

Q: What is the molarity of the solution prepared by concentrating, by evaporation of solvent, 755 mL of…

A: Molarity can be defined as number of moles of solute dissolved per liter of the solution That is…

Q: How much of a 5.4 M sucrose solution should you use to make 77.0 mL of a 0.045 M solution? Express…

A: To determine how much of a sucrose solution is needed to make of a solution, we can use the…

Q: What is the molarity of a solution made by dissolving 12.711 g of potassium carbonate, K2CO3, in…

Q: In preparing solution number 1 (see experimental procedure), a student measures 5.0 mL of 2.00 x 10…

A: using Beer's Law, A = eCl e = absorptivity of Fe(SCN)2+ = 5150 L mol-1 cm-1 A = 0.36 l = generaaly 1…

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

Q: What is the molality of lithium ions in a 0.302 n compound dissociates c

Q: Q3/ Calculate the normal concentration of 0.5 g K,Cr,07 dissolved in 500 ml of water ?g.M.w K2Crz0,…

A: Question 3 :- Given Mass of K2Cr2O7 = 0.5 gram MOLAR Mass of K2Cr2O7 = 294 g/mol Moles of of K2Cr2O7…

Q: Select all that are True. At 10 degC is 20 g of sodium nitrate is placed into 100 g of water, an…

Concept explainers

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.

Question

How do you prepare 25 ml of 8.5 mM NaCl from a 20% NaCl stock (convert 20%→g/ml → molar)?
What is the molarity of the NaCl stock solution? Answer M
Add Answer μl of stock, dissolve, and bring it up to 25 ml with water.
20
0.342
3.42
0.0125
0.001
62
42.5
0.31
0.062
0.00342

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Define Molarity

VIEW

Step 2: Calculate molarity

VIEW

Step 3: Calculate volume of stock solution required

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

If you mix 10 mL of 0.525 M KI and 15 mL of 0.015 M KCI in a 50-mL volumetric flask and dilute to volume with water, what is the final concentration (mol/L) of potassium [K+] in the solution? Answer to 3 decimal places, without units. Your Answer: Answer
How do you find the average value for the molarity of unknown CaCl2 solution?
I need 4-5 answered. Thanks!
You are asked to prepare a 1.000 L solution of 4.5 M you commit a user error while preparing this solution. Assumed volume Volumetric error Preparation details Added water 2.0 cm above the line, which corresponds to 8.2 mL (0.0082 L) additional solution volume C6H12O6 (glucose; molar mass = 180.16 g/mol) in a lab by dissolving 811.0 g of glucose in water. Consider the following two scenarios in whic Prepared in a beaker Prepared in a volumetric flask 1.000 L You add the glucose to a volumetric flask and then add water until it dissolves. The water bottle you are using has a worn tip, and you inadvertently add too much water such that the meniscus is above the line. The diameter of the neck of the volumetric flask is 2.29 cm. 811.0 g glucose Concentration: You decide to evaluate and compare the errors you made while preparing the solutions using the different methods. Calculate the actual concentrations of the intended 4.5 M glucose solutions prepared by each method based on their…
Are these correct? The top page of the second paper is the second problem.
I need help with this question please! Use dimensional analysis please!?
Trying to determine concentration of sucrose in soda equation for standard curve: y= 0.0186x+1 volume: 50 mL cola density = 1.08412 g/mL mass = 54.2060 g actual concentration (given) M of sucrose: 0.659449 M How would i determine: concentration of cola, Molarity of sucrose, percent mass of sucrose and mole fraction of sucrose given the information?
Question 7 of 10 Submit What volume in L of a 0.724M Nal solution contains 0.405 | mol of Nal ? X STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) %3D 0.405 0.293 g Nal L 126.90 g Nal/mol 0.559 mol Nal 559 mL 22.99 M Nal 148.89 6.022 x 1023 1.79 0.724 Tap here or pull up for additional resources
#23: Please round to the correct sig figs
7.
Using molarity to find solute Holes A chemist adds 470.0 mL of a 0.212 mol/L potassium dichromate (K₂Cr₂O₂) solution to a reaction flask. Calculate the millimoles of potassium dichromate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. mmol Explanation Check X Ś Graw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibilit
If you had a 3.50 M stock solution of NaOH, how many ml of this stock would be needed to prepare 565 ml of a 1.25 M solution of NaOH? MacBook PrO GSearch or type URL # $ & 2 3 4 6. L. < CO 个