A chemist prepares a solution of silver(I) perchlorate (AgCIO4) by measuring out 817. μmol of silver(1) perchlorate into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver(I) perchlorate solution. Round your answer to 3 significant digits. 8 mol L 0 x10 X

A chemist prepares a solution of silver(I) perchlorate (AgCIO4) by measuring out 817. μmol of silver(1) perchlorate into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver(I) perchlorate solution. Round your answer to 3 significant digits. 8 mol L 0 x10 X

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.87PAE: 1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information...

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1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?
A chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out 6.4102 x 10^2 μmol of silver(I) nitrate into a 450.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver(I) nitrate solution. Round your answer to 2 significant digits.
A chemist must prepare 300.mL of 2.00M aqueous silver perchlorate AgClO4 working solution. He'll do this by pouring out some 5.62molL aqueous silver perchlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the silver perchlorate stock solution that the chemist should pour out. Round your answer to 3 significant digits.
A chemist prepares a solution of mercury(I) chloride (Hg2Cl2) by measuring out 0.000221μmol of mercury(I) chloride into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in μmol/L of the chemist's mercury(I) chloride solution. Round your answer to 3 significant digits.
If you made a solution of 1.5 ppm of Pb in 1.25 mL of nitric acid, from 0.25 mL of a stock solution. What is the concentration of the stock solution? Give your answer in ppm. Use the correct number of significant figures.
How many grams of iron ammonium sulfate hexahydrate (Fe(NH4)2(SO4)2*6H20; 392.14 g/mol ) must be dissolved in a 250.0 mL volumetric flask to make a solution that has a Fe2 + concentration of 5.36x10 - 3 M? Be sure to enter you answer with the correct number of significant figures for the precision needed in the concentration.
You want to compare a patient's measured calcium ion concentration to the normal calcium ion concentration in blood serum. The only range you can find is 4.5 - 5.5 mEq/L, but the blood results show a concentration of 0.22 mmol/dL. Convert the measured calcium ion concentration from the blood results to mEq/L (to one decimal place) What are the units? I asked this question twice and I got two different answers from people. They said 4.4 and 220? What is the answer?
A chemist prepares a solution of mercury(I) chloride (Hg2Cl2) by measuring out 0.00013μmol of mercury(I) chloride into a 50.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's mercury(I) chloride solution. Round your answer to 2 significant digits.
A chemist must prepare 600.mL of 180.mM aqueous barium chlorate BaClO32 working solution. He'll do this by pouring out some 0.188M aqueous barium chlorate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the barium chlorate stock solution that the chemist should pour out. Round your answer to 3 significant digits.
A chemist prepares a solution of sodium hyposulfate Na2S2O3 by measuring out 279.μmol of sodium hyposulfate into a 450.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's sodium hyposulfate solution. Round your answer to 3 significant digits.
A 65.00 mL sample of 0.5 M nitric acid is introduced into a flask, and water is added until the volume of the solution reaches 250. mL. What is the concentration of nitric acid in the final solution? (Express your answer in 3 significant figures)
The concentration of PSA (prostate-specific antigen) in the blood is sometimes used as a screening test for possible prostate cancer in men. The value is normally reported as the number of nanograms of PSA per milliliter of blood. A PSA concentration of 1.7 ng/mL1.7 ng/mL is considered low. Express that value in terms of the units shown. PSA= g/L PSA= kg/m3 PSA= mg/L

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