5 points 11. If Captain America mixes 175 mls of 3.6M Na2CO3 with an excess of
Ca(OH)2, how many grams of CaCO3 would be produced? *
A. 0.63 grams
B. 6.3 grams
C. 63 grams
D. 3.6 grams

Ca(OH)2 + CO2 => CaCO3 + H2O

massa CaCO3 = 2,5 gr, Mr CaCO3 = 100

mol CaCO3 = 2,5 gr / 100 gr/mol = 0,025 mol

mol Ca(OH)2 = mol CaCO3 = 0,025 mol

Mr Ca(OH)2 = 74

massa Ca(OH)2 = 0,025 mol x 74 gr/mol 3.6 grams

mol CO2 = mol CaCO3 = 0,025 mol

V N2 = 1 liter , Ar N = 14

mol N2 = 6.3 grams

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.