## cooltowl one year ago You heated 2.92g of baking soda in a crucible to produce 1.810g of a solid product. The product could be NaOH, Na2CO3, or Na2O. What mass of NaOH could you have produced?

1. aaronq

the equation for the decomposition of sodium bicarbonate into sodium hydroxide also produces carbon dioxide. Balanced, the equation is: $$\sf NaHCO_3\rightarrow NaOH+CO_2$$ Lets work out the theoretical yield with the mass of NaHCO3 1. First convert to moles with: $$\sf moles=\dfrac{mass}{Molar~mass}$$ 2. Next use a ratio of the moles of both chemical species and their stoichiometric coefficients: $$\sf \dfrac{moles~of~NaHCO_3}{NaHCO_3's~coefficient}=\dfrac{moles~of~NaOH}{NaOH's~coefficient}$$ Plug in moles of NaHCO3, the coefficients and solve for moles of NaOH (because the coefficients are both 1 in this example, we can omit this^ last step) 3. Lastly, convert to mass using equation from 1, solve for mass of NaOH this time.

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