QUESTION 1 An aqueous solution containing 23.4 g of an unknown substance in 755 g water was found to have a freezing point of -1.96 °C. Calculate the molar mass of the unknown substance (Kf for water is 1.86 °C/m)

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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.