Fill in the blank: in space, astronauts experience ________ which is the apparent loss of weight of an object that is falling in
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Mass of CaCl₂ = 0.732 g
<h3>Further explanation</h3>The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.