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This online quiz is intended to give you extra practice in naming chemical compounds, including ionic compounds made from simple or polyatomic ions, binary molecular compounds, or common acids. Select your preferences below and click 'Start' to give it a try!
3 lip 2019 · The molar mass of a substance is the mass of one mole of the substance. This collection of ten chemistry test questions deals with calculating and using molar masses. The answers appear after the final question.
28 maj 2020 · A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is its molecular formula? Answer . C 6 H 6
Molar mass (MM): the weight of a substance in the units g/mol, found by adding the atomic masses of each element. Example: MM of H 2 O --> H(1.008 x 2) + O(15.999)= 18 g/mol; Solution. a) 3.8 x 10 51 grams. b) 4.11 x 10 45 grams. c) 7.31 x 10 25 grams
Molar Mass, Gram to Mole, Mole to Gram; Using Avogadro's Number; Using Formula Subscripts; Mixed
This is a comprehensive, end-of-chapter set of practice problems on stoichiometry that covers balancing chemical equations, mole-ratio calculations, limiting reactants, and percent yield concepts. The links to the corresponding topics are given below. The Mole and Molar Mass. Molar Calculations.
The molar mass of a substance is the mass of one mole of that substance. It is expressed in grams per mole (g/mol). The molar mass of an element is numerically equal to its atomic mass in unified atomic mass units (u or amu).
