Answer:
C. some substances can move freely across the cell membrane, while others must be transported.
Explanation:
Weight of sodium thiosulfate = 76.148 - 8.2
= 67.948 g.
Concentration of the solution = 67.948 / 172.7
= 0.393 g / mL. to the nearest thousandth . (answer).
Is this a answer multiple choice or u just answer it
Answer:
<h2>12.38 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

m is the mass
v is the volume
From the question
m = 149.8 g
v = 12.1 mL
We have

We have the final answer as
<h3>12.38 g/mL</h3>
Hope this helps you