Answer:
<h2>8.03 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

From the question we have

We have the final answer
<h3>8.03 g/mL</h3>
Hope this helps you
seaweed having 50 g salt in 1 L water. The bucket contains 150 g of salt in 2 L of water
amount of water present in bucket is twice to amount of water in weed

At equilibrium, volume of water in weed is x and volume in bucket is y but concentration remain same as follows:

At equilibrium, weed loose z L from 1 L water to bucket containing 2 L as follows:

Thus, Weed will loose 0.25 L of water
To find the number of molecules, you need to first convert the mass into number of mol using the molar mass of SO2, simply add the atomic masses of each element and the number of times each element appears in the formula from the periodic table.
Then divide the mass by that value and then use Avogadro’s number to find the molecules.
Multiply by 6.02 x 10^23 Molecules.