Urea, a common compound used in fertilizers, has the formula CO(NH2)2\text{CO}(\text{NH}_2)_2CO(NH2)2.
Calculate the mass of nitrogen in 185 g of urea.
Give your answer to three significant figures.
(Relative atomic masses: H=1.0\text{H} = 1.0H=1.0, C=12.0\text{C} = 12.0C=12.0, N=14.0\text{N} = 14.0N=14.0, O=16.0\text{O} = 16.0O=16.0; Relative formula mass: CO(NH2)2=60.0\text{CO}(\text{NH}_2)_2 = 60.0CO(NH2)2=60.0)
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258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.