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A lawn fertiliser is rated as 6.00 % nitrogen, meaning 6.00 g of nitrogen (N) in 100 g of fertiliser. The nitrogen is present in the form of urea, (NH2)2CO. What mass (in grams) of urea is present in 100 g of the fertiliser to supply the rated amount of nitrogen.

Sagot :

Answer:

Convert 6.50 g N to g urea.

6.50 g N x (molar mass urea/2*atomic mass N) = ? g urea.

Explanation:

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