написать? True or False ? 1. He is Omar. 2. His dream holiday is 10 visit Almaty. 3. He would like to - id1836463520221115 от mironova0 15.11.2022 04:26

Question

Химия: написать? True or False ? 1. He is Omar. 2. His dream holiday is 10 visit Almaty. 3. He would like to fly by plane 4. He would like to see aliens and rocket. 5. He would like to wear a spacesuit.​

mironova0 · Accepted Answer

Так как у всех газов количество вещества=22,4 л/моль,то в первой смеси на 1 моль метана будет приходится 9 моль этана,значит можно вычислить среднюю молярную массу первой смеси:
(n(CH4)*M(CH4)+n(C2H6)*M(C2H6))/(n(CH4)+n(C2H6))=28,6 г/моль.

Ср.мол.масса второй смеси:
n(CH4)*M(CH4)+n(C2H6)*M(C2H6))/(n(CH4)+n(C2H6))=17,4 г/моль.
Так как вторая смесь легче,можно вычислить плотность первой относительно второй:
M(тяжелой смеси)/M(легкой смеси)=1,644.
Значит относительная плотность первой смеси по второй равно 1,644

написать? True or False'?
1. He is Omar.
2. His dream holiday is 10 visit Almaty.
3. He would like to fly by plane
4. He would like to see aliens and rocket.
5. He would like to wear a spacesuit.

MOGZ ответил

написать? True or False'?1. He is Omar.2. His dream holiday is 10 visit Almaty.3. He would like to fly by plane4. He would like to see aliens and rocket.5. He would like to wear a spacesuit.​

MOGZ ответил

написать? True or False'?
1. He is Omar.
2. His dream holiday is 10 visit Almaty.
3. He would like to fly by plane
4. He would like to see aliens and rocket.
5. He would like to wear a spacesuit.