Education is an important tool which is very useful in everybody’s life. Education is what differentiates us from other living beings on earth. It makes man the smartest creature on earth. It empowers humans and gets them ready to face challenges of life efficiently. With that being said, education still remains a luxury and not a necessity in our country. Educational awareness needs to be spread through the country to make education accessible. But, this remains incomplete without first analyzing the importance of education. Only when the people realize what significance it holds, can they consider it a necessity for a good life. In this essay on Education, we will see the importance of education and how it is a doorway to success.
H2 + I2 = 2HI 1моль 1 моль 1. найдем количество иода v = m / M v(I2) = 2540 г / 254 = 10 моль по уравнению реакции кол-во водорода = количеству иода, следовательно количество водорода = 10 моль V = v * Vm V(H2) = 10 * 22.4 = 224 л
2Ca + O2 = 2CaO 1моль 2моль количество оксида кальция = 11,2 / 56 = 0,2 моль v(CaO) =11.2 / 56 = 0.2моль количество кислорода в 2 раза меньше, чем оксида кальция (по уравнению реакции), следовательно оно = 0,2 / 2 = 0,1 моль масса кислорода m(O2) = 0.1 * 32 = 3.2 г
Education is an important tool which is very useful in everybody’s life. Education is what differentiates us from other living beings on earth. It makes man the smartest creature on earth. It empowers humans and gets them ready to face challenges of life efficiently. With that being said, education still remains a luxury and not a necessity in our country. Educational awareness needs to be spread through the country to make education accessible. But, this remains incomplete without first analyzing the importance of education. Only when the people realize what significance it holds, can they consider it a necessity for a good life. In this essay on Education, we will see the importance of education and how it is a doorway to success.
Объяснение:
1моль 1 моль
1. найдем количество иода
v = m / M v(I2) = 2540 г / 254 = 10 моль
по уравнению реакции кол-во водорода = количеству иода, следовательно количество водорода = 10 моль
V = v * Vm
V(H2) = 10 * 22.4 = 224 л
2Ca + O2 = 2CaO
1моль 2моль
количество оксида кальция = 11,2 / 56 = 0,2 моль
v(CaO) =11.2 / 56 = 0.2моль
количество кислорода в 2 раза меньше, чем оксида кальция (по уравнению реакции), следовательно оно = 0,2 / 2 = 0,1 моль
масса кислорода
m(O2) = 0.1 * 32 = 3.2 г