What is molar concentration

Assignment Help Chemistry
Reference no: EM13718627

Problem- 1. A concentration of 96.0% of w/w H2SO4 solution has a density of

1) 8g/mL. Determine molarity.

2) Describe how to prepare a 5.0% w/v solution of sodium of sodium chloride.

3) All grain contains an acceptable amount of rat hairs. If 40 rat hairs weighing 1.5X10^-4 g each were found in a 1.00kg sample of grain, what is the content of rat hairs in that sample expressed in ppm?

4) The concentration of lead in an industrail waste stream is 0.28 ppm. What is molar concentration?

5) A 250.0mL aqueous solution contains 45.1 micrograms of pesticide.

Express the pesticide's concentration in weight percent, parts per million, and parts per billion.

Reference no: EM13718627

Questions Cloud

Describe the type of osmosis expected to take place : If a 1.0 starch solution is surrounded by a semipermeable membrane and then immersed in a 0.055 starch solution, is the outer solution considered isotonic, hypotonic, or hypertonic? Describe the type of osmosis expected to take place.
Define the acetyl group in acetyl coa : What are the fewest numbers of turns of the citric acid cycle needed before the carbon radioactive in both carbons of the acetyl group in acetyl CoA are incorporated into all 4 carbons in every molecule of oxaloacetate produced?
Calculate the entropy change for the system : The heat released indicates an enthalpy change of -251 kJ/mol (-60 kcal/mol). For this process, calculate the entropy change for the system and the entropy change for the surroundings.
Define a molar ratio of potassium acetate to acetic acid : Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa = 4.76) of (a) 2:1; (b) 1:3; (c) 5:1; (d) 1:1; or (e) 1:10.
What is molar concentration : Describe how to prepare a 5.0% w/v solution of sodium of sodium chloride. The concentration of lead in an industrail waste stream is 0.28 ppm. What is molar concentration
Calculate the number of molecules inside the cell : The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0047 M. Calculate the number of molecules inside the cell, which is 2.0 micrometers long and 1.3 micrometers in diameter.
Explain what is the charge of the electron in zircombs : A chemist in a galaxy far, far away performed the Millikan oil drop experiment and got the following results for the charge on various drops. What is the charge of the electron in zircombs. 3.68E-12 zircombs 1.10E-11 zircombs 5.52E-12 zircombs 9.2..
Write a query to display the name : Write a Query to display the name, department_id of the employee that earns the highest salary in the Employees table.
What is the density of the metal : A sample of metal has a mass of 23.97 g, and a volume of 7.35 mL. What is the density of this metal

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd