NEED help asap 1 multiple choice question!
In order to prepare a solution for a chemical analysis, 0.275 mol of ammonium sulfide, (NH4)2S(s), is required. What mass of ammonium sulfide must be measured?

Select one:
a. 4.03 g
b. 13.8 g
c. 14.9 g
d. 18.7 g

Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.

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What is the mass of each element in a 324.8 sample of co2