What is the molarity of a solution that is made by adding 57.3 g of MgO to 500.0 mL of solution?

What does the cell nucleus do or, how does it function?

0.09 moles of sodium sulfate in 12 ml of solution

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum