Answered

At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

What is the percent mass/volume and molarity of sodium chloride solution, if 2.0grams of salt is collected by evaporating from 30.0ml of sodium chloride solution?

Sagot :

imen
M(NaCl)=M(Na)+M(Cl)
            =23+35
            =58 g/mol
n=m/M   n=c.v    ρ=m/v 
m=2g    v=30ml=0.03l
molarity of sodium chloride is:
n=m/M
   =2/58
  =3.4.10(-2)mol
the percent mass/volume is:
ρ=2/0.03
  =2/3 10^2 g/l
Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.