Determine the number of molecules in 50 g of HCl , 25 g of
nitrogen gas
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... 20.7 g. 3.01 x 1024 carbon dioxide molecules. Number of moles of CO2 ... Calcium carbonate (CaCO3) reacts with dilute hydrochloric acid (HCℓ) ... 50 cm3 of 0.2 mol∙dm-3 H2SO4. 3.
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