Which domain do you find the most interesting why

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis