Asked Sep 28, 2019

What is the molarity of a 30% solution of NaCl?


Expert Answer

Step 1


For NaCl, a 30% solution would be 30 g of NaCl in 100 mL of Solution, so multiplying by 10 would give 300 g in 1 L of solution.

Molar mass of NaCl = 58.44 g/mol.

Step 2

Calculation for number of moles of NaCl:


Image Transcriptionclose

mass number of moles molar mass 300 g number of moles 58.44 g/mol number of moles 5.134 moles

Step 3

Calculation for molari...


Image Transcriptionclose

number of moles Molarity Volume (L) 5.134 moles Molarity 1 L Molarity 5.134 mol/L 5.134 M.


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in




Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: The refining of aluminum from Bauxite ore (which contains 50.% Al2O3 by mass) proceeds by the overal...

A: The number of moles of a species is calculated by the expression (1) in which n is the number of mol...


Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2S...

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula / mo...


Q: Give the balanced equation that describes the combustion of butane

A:  Combustion is burning of any substance in presence of oxygen.The chemical formula of butane is C4H1...


Q: Write the net ionic equation for the following molecular equation. CrI2(aq) + Na2CO3(aq)CrCO3(s) ...

A: The given reaction is


Q: Chymotrypsin is secreted by the pancres and passed into the intestine. The optimal pH for this enzym...

A: Chymotryspin is an enzyme used to break down the protein in the small intestine.  Trypsin is  used t...


Q: A throat spray is 1.40% by mass phenol, C6H5OH, in water. If the solution has a density of 0.9956 g/...

A: The term molarity or concentration has been defined as the ratio of number of moles of the solute to...


Q: Calculate the formula mass for each of the following compounds. Express your answer using two decima...

A: Formula mass is the sum of atomic masses of all the elements in the given molecular formula.


Q: Mass (in grams) of 1.00×10−2 molof CdS. Express the mass in grams to three significant digits.   N...

A: The mass in grams is calculated for CdS as shown,


Q: write the electron configuration for Ne

A: Electron configuration:  The complete description of the atomic orbitals occupied by all the electro...