Calculate the number of grams of sodium in 7.9 gg of each of the following sodium-containing food additives. a. NaCl (table salt) Express your answer using two significant figures.         m1=   g b. Na3PO4 (sodium phosphate) Express your answer using two significant figures.         m2    g c. NaC7H5O2 (sodium benzoate) Express your answer using two significant figures. m3     g

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Q: a. 14.8 g = ? ug b. 3.72 g = ? kg %3D C. 66.3 L ? cm

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Q: 44. Convert 355 kJ to mJ. Express your answer using 3 significant figures. 355 kJ = Answer mJ

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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.