How many moles of Ba(OH)2 are present in 205 mL of 0.400 M Ba(OH)2​

0.082 moles

Explanation:

To answer this question we'll need to use the definition of molarity:

Molarity = moles / liters

We are given the molarity and mililiters, so now we convert 205 mL into L:

205 mL / 1000 = 0.205 L

Now we can calculate the number of moles:

0.400 M = moles / 0.205 L

moles = 0.082 moles

If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .

Yes it would be a physical change.