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The number of moles contained in 12.6 g of salt: NaCl is _______ g. Type ONLY correctly rounded number (without unit) and do NOT use scientific notation.. Molar masses: Na 22.99 Cl 35.45 _______

How many molecules are contained in 2.35 g of carbon dioxide? Molar masses: C 12.01 O 16.00

Butane is a flammable gas with the chemical formula: C4H10{“version”:”1.1″,”math”:”C4H10″}Type the empirical formula of butane. Use uppercase letters for chemical symbols. _______

1 mole of zinc and 1 mole of iron have the same masses. 

Which of the following atoms have its valence electrons located in 5s and 5p orbitals?

The full/complete electron configuration of arsenic is the following

According to the following equation, calculate the theoretical yield, in moles, of water if 2.43 moles of ammonia reacted with oxygen used in excess. 4 NH3 + 5 O2 →4 NO +6 H2O{“version”:”1.1″,”math”:”4 NH3 + 5 O2 →4 NO +6 H2O”}

Glucose when heated decomposes to produce carbon and water: C6H12O6 →6 C + 6 H2O{“version”:”1.1″,”math”:”C6H12O6 →6 C + 6 H2O”} Calculate the theoretical yield, in grams, of water if 25.0 g of glucose underwent decomposition. Type correctly rounded number with no unit, for example 20.1 Molar masses: C 12.01 H 1.01 O 16.00 _______

How many unpaired electrons are present in an atom if arsenic (As)?

According to the following equation, calculate the theoretical yield, in moles, of nitrogen monoxide if 1.581 moles of ammonia reacted with oxygen used in excess. 4 NH3 + 5 O2 →4 NO +6 H2O{“version”:”1.1″,”math”:”4 NH3 + 5 O2 →4 NO +6 H2O”}