Chemistry

Chemistry, 24.07.2019 03:30, zzzio1866

How do you convert mass to moles? ?

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Chemistry, 22.07.2019 21:40, kseniyayakimov

Na chemical reaction, exactly 2 mol of substance a react to produce exactly 3 mol of substance b. 2a⟶3b how many molecules of substance b are produced when 27.6 g of substance a reacts? the molar mass of substance a is 27.8 g/mol. step 1: convert the mass of a to moles. moles of a: mol step 2: convert the number of moles of a to the number of moles of b. moles of b: mol step 3: convert the number of moles of b to molecules of b. molecules of b:

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Chemistry, 30.07.2019 00:00, rome58

To convert from mass a to moles of b in stoichiometry problems, the following steps are followed: mass a --> mass b --> moles b mass a --> moles b mass a > moles a --> moles b mass a --> moles a --> mass b--> moles b

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Chemistry, 29.10.2019 06:31, ogiebert

What mass of copper has the same number of atoms as 26.98 g of aluminum? show your work for full credit! a. convert the mass of aluminum to moles of aluminum. molar mass of aluminum (al) = 26.98 g/mol b. convert the moles of aluminum to moles of copper. we are comparing the same amount (in moles) of aluminum and copper. c. convert the moles of copper to mass of copper. molar mass of copper (cu) = 63.55 g/mol

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Chemistry, 01.11.2019 19:31, smariedegray

How is stoichiometry used to calculate the mass of a substance? o a. unit conversion factors are used to convert between units of grams and moles. o b. oxidation numbers are used to convert from moles of one molecule to moles of another molecule. o c. subscripts in chemical formulas are used to calculate amounts of substances. o d. percent contributions are used to convert between molar mass and mass. submit

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