Sodium reacts with chlorine gas to form sodium chloride. 2Na + Cl₂ = 2NaCl What mass of chlorine gas will react with 92.0g of sodium?

Question

knowledge · Answer

how do chemist count things?

anonymous · Answer

in moles

knowledge · Answer

so the equation is a molecular ratio of the different compounds involved in the reaction, so  you have to convert the grams of sodiums to moles and then use the ratios of the equation

knowledge · Answer

multiply those together and you have moles of chlorine gas which you convert to grams using the molar mass 35.45g/mol

anonymous · Answer

how do  I convert the grams of sodium into moles?

knowledge · Answer

you multiply the reciprocal of the molar mass
$$92.0 g Na(\frac{ 1 mol }{ 22.99g })$$

anonymous · Answer

where did the 22.9g come from?

knowledge · Answer

that is the molar mass of Na

knowledge · Answer

that comes from the periodic table

anonymous · Answer

Oh, ok. So it would be 4.0 mol, right?

knowledge · Answer

yeah