C)a 100ml graduated cylinder contained 25.6ml of water. a test tube full of water was emptied into the graduated cylinder. the water volume in the graduated cylinder was then found to be 45.8ml. what was the volume of water in the test tube?

20.2 mL

Explanation:

45.8 - 25.6 as 45.8 was the mass with the water from the test tube added

Answer : The volume of water in the test tube is 20.2 mL

Explanation : Given,

Volume of water in graduated cylinder = 25.6 mL

Volume of graduated cylinder = 100 mL

Volume of water after adding full test tube of water = 45.8 mL

Now we have to calculate the volume of water in the test tube.

Volume of water in the test tube = Volume of water after adding full test tube of water - Volume of water in graduated cylinder

Volume of water in the test tube = 45.8 mL - 25.6 mL

Volume of water in the test tube = 20.2 mL

Therefore, the volume of water in the test tube is 20.2 mL

(+2)

Explanation:The formula of the mohr salt is, Mohr salt is also known as ammonium ferrous sulfate or ammonium iron(II)sulfate. It is the inorganic compound which containing two different cations which are and . It is classified as a double salt of ferrous sulfate and ammonium sulfate.