Calculate according to standard atomic weight, potassium nitrate (KNO3)'s nitrogen content is 14/(39+14+16*3) = 13.86%. So 101.1 g of potassium nitrate contains 101.1*13.86% = 14.01 g nitrogen. Urea CO(NH2)2's nitrogen content is 14*2/(12+16+14*2+1*4) = 46.67%, so to have the same amount of nitrogen, the mass of urea needs to be 14.01/46.67% = 30.02 g.
Answer:
Sodium acetate is NaC2H3O2
Although 1013.25 mb (760 mm Hg) is considered to be the standard atmospheric pressure at sea level, it does not mean that the pressure at this level has this value, actually this being 1011 mb.
<span>8.4x10^2 kg.
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Answer:
In carbon there are 12 atoms.
Explanation:
You need to multiply the coefficient, in this case the coefficient is a 4 to Carbon's (C) Subscript which is 3, to find out how many atoms it has. (4)(3)=12