1. Calculate the concentration of the following solutions: Find the w/v percent concentration: 5.0 g of KCl in enough water to make 400 mL of solution. Find the v/v percent concentration: 7.0 mL of methanol in enough water to make 350 mL of solution. Find the molarity: 15.3 g of CaCl, in enough water to make 600 mL of solution.

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Q: What is the mass of phosphorus in a 45 kg person? mass of P = %3D TOOLS x10

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.