which mass of urea CO(NH2)2 contain the same mass of nitrogen as 101.1g of potassium nitrate?

Question

03-06-2017
Chemistry

contestada

which mass of urea CO(NH2)2 contain the same mass of nitrogen as 101.1g of potassium nitrate?

Respuesta :

Otras preguntas

In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

find the circumference of a circle whose radius is 15.4cm

In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

find the circumference of a circle whose radius is 15.4cm

jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music

find the circumference of a circle whose radius is 15.4cm

In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

What value of x makes the equation true ? 4(2x-4)=16

find the circumference of a circle whose radius is 15.4cm

dec77cat dec77cat · Answer 1 · 2017-06-03T18:05:54+02:00

dec77cat dec77cat

03-06-2017

M(KNO₃)=101.1 g/mol
M(CO(NH₂)₂)=60.1 g/mol

m(N)=M(N)m(KNO₃)/M(KNO₃)

m(N)=2M(N)m(CO(NH₂)₂)/M(CO(NH₂)₂)

2m(CO(NH₂)₂)/M(CO(NH₂)₂)=m(KNO₃)/M(KNO₃)

m(CO(NH₂)₂)=M(CO(NH₂)₂)m(KNO₃)/(2M(KNO₃))

m(CO(NH₂)₂)=60.1*101.1/(2*101.1)=30.05 g

Answer Link