Ex1. how many moles correspond to 250 g of each of the following compounds? a. NaCl b. KNO, c. H, 0, d. KHSO, Ex2. Calculate how many particles are contained in: a. 1.5 g of potassium, K b. 0.470 g of oxygen, 0, c. 0.
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A mixture of He, He, Ne, Ne, and Ar Ar has a pressure of 18.8 atm 18.8 atm at 28.0 °C. If the partial pressure of He He is 2.94 atm 2.94 atm and the partial pressure of Ar Ar is 4.27 atm, 4.27 atm, what is the partial pressure of Ne? Ne?
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