Posted by Riana on Tuesday, January 29, 2013 at 6:03pm.
and mol/l ?( the density of the solution is 1.15g/ml)
Question -1
Percent by mass of the solution= mass of NaCl/total mass= 25g of NaCl/25 g of NaCl +100g of H2O
Question-2
Density =mass/volume, solve for volume
Solve for moles
moles of NaCl=25g of NaCl/58.44 g of NaCl/mol
Solve for Volume
mass/density=volume=125g of total solution/1.15g/ml=volume of total solution
The units for volume are in mL, so multiply that by 10^-3 to convert to L.
Molarity=moles/Liters=moles of NaCl/volume of total solution (L)
Related Questions
8th grade - Math I am a fraction in simplest form. I am greater than1/3 and less...
algebra1 - find each sum,difference,or product. If the sum or difference does ...
MAth - estimate each sum or difference. 22.8+49.2+1.7
math - i need help on a proof, can anyone help? please HELP!!!! me on the ...
Math - estimate the sum or difference by rounding the nearest one 9.87 +4.05
math - estimate each sum or difference by rounding to the greatest place value. ...
Math - Melvin estimate 645 + 322 by adding 600 + 300. Is his estimate sum an ...
3rd grade math - front end estimation to estimate the sum...like..436+517...
Math - Without finding the exact answer, select which of the following numbers ...
Math - Directions : write the equation or an inequality 1.The difference of a ...
For Further Reading
