JosieShough
Answered

Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Our platform provides a seamless experience for finding precise answers from a network of experienced professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

If 250 mL of a 0.50 M NaCl solution is diluted to 840 mL, what is the molarity of the resulting solution?
a) 0.15 M
b) 6.7 M
c) 0.60 M
d) 1.7 M
e) 0.0025 M

Sagot :

Joetherandomguy

Convert all the mL to L first, .25 L and .84 L  (.25) (.5) = (.84) (x) solve... I got .148809524, round to one sig fig (i think) would be .1 M

Answer: a) 0.15 M

Explanation:

According to the dilution law,

[tex]M_1V_1=M_2V_2[/tex]

where,

[tex]M_1[/tex] = molarity of stock solution = 0.50 M

[tex]V_1[/tex] = volume of stock solution = 250 ml

[tex]M_2[/tex] = molarity of diluted solution = ?

[tex]V_2[/tex] = volume of diluted solution = 840 ml

Putting in the values, we get:

[tex]0.50M\times 250=M_2\times 840[/tex]

[tex]M_2=0.15[/tex]

Therefore, the molarity of the resulting solution is 0.15 M

We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.