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13 Cards in this Set
- Front
- Back
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The __ of an element is the mass of one mole of the element
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Gram Atomic Mass
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A formula that shows the simplest whole number ratio of atoms in a compound is the --- formula
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Emperical
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To find the molecular formula from the emperical formula, one determines the compound's ___
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GFM
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A molecular compound has the emperical formula X2Y3. What is a possible molecular formula?
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X4Y6
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The MM of NO2 is 46.01 g/mol. How many moles of NO2 are present in 18.42 g?
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0.4003 mol
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The MM of CS2 is 76.14 g/mol. How many grams of CS2 are present in 0.171 mols?
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13.02 g
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How many hydroxide ions are present in 2.00 mol of Ca(OH)2?
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2.41 X 10^24
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How many oxygen atoms are there in 0.2 mol or CO2?
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2.41 x 10^23
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What is the percent composition of BF3?
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16% B, 84% F
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The compound copper I chloride is ---% copper and ...% chlorine.
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64, 36
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Potassium Chloride is ___ % chlorine
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47.6
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What is the emperical formula for a compound that is 56.4% phosphorus and 43.6% oxygen?`
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P2O3
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A compound has the empirical formula CH and the MM of 26 g/mol. What is the molecular formula?
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C2H2
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