I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
is the concentration of a solution expressed as the number of moles of solute per litre of solution.
To get the molarity, you divide the moles of solute by the litres of solution.
##”Molarity” = “moles of solute”https://studydaddy.com/”litres of solution”##
For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution.
To calculate the molarity of a solution, you need to know the number of moles of solute and the total volume of the solution.
To calculate molarity:
What is the molarity of a solution prepared by dissolving 15.0 g of NaOH in enough water to make a total of 225 mL of solution?
1 mol of NaOH has a mass of 40.00 g, so
##”Moles of NaOH” = 15.0 cancel(“g NaOH”) × “1 mol NaOH”/(40.00 cancel(“g NaOH”)) = “0.375 mol NaOH”##
##”Litres of solution” = 225 cancel(“mL soln”) × “1 L soln”/(1000 cancel(“mL soln”)) = “0.225 L soln”##
##”Molarity” = “moles of solute”https://studydaddy.com/”litres of solution” = “0.375 mol”https://studydaddy.com/”0.225 L” = “1.67 mol/L”##
Some students prefer to use a “molarity triangle”.
It summarizes the molarity formulas as
##”Moles” = “molarity × litres”##
##”Molarity” = “moles”https://studydaddy.com/”litres”##
##”Litres” = “moles”https://studydaddy.com/”molarity”##
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more