Question

what is the mass of 0.94 mol of nh₃? the molar mass of nh₃ is 17.03 g/mol.
○18 g
○16 g
○34 g
○0.0555 g

Explanation:

Step1: Recall the formula for mass from moles

The formula relating moles (\(n\)), molar mass (\(M\)), and mass (\(m\)) is \(m = n\times M\).

Step2: Substitute the given values

We are given \(n = 0.94\space mol\) and \(M = 17.03\space g/mol\). Substituting these into the formula: \(m=0.94\times17.03\).

Step3: Calculate the product

\(0.94\times17.03 = 16.0082\approx16\space g\) (rounded to a reasonable number of significant figures or as per the options).

Answer:

16 g (corresponding to the option "16 g")