weridness80

24.08.2019 • 

Chemistry

Consider separate 1.0-l samples of he(g) and uf6(g), both at 1.00 atm and containing the same number of moles. what ratio of temperatures for the two samples would produce the same root mean square velocity? consider separate 1.0-l samples of he(g) and uf6(g), both at 1.00 atm and containing the same number of moles. what ratio of temperatures for the two samples would produce the same root mean square velocity?

Ответ:

elyzarobertson

31.12.2021

Chemistry

---

V =  \sqrt{x} 3 * R * T / MW

V = RMS velocity

R = 8.3145 J/K*mole

T = Temperature K

MW = Molecular weigh in Kg

---

0,0(0 оценок)

Ответ:

hi105

11.04.2022

Chemistry

---

MgSO4.7H2O

Explanation:

The heating removes all the water (H2O) in the crystal.

The mass of the water removed = 82-40.1 = 41.9 grams.

The formula of the hydrated salt = MgSO4. xH2O

The ratio in of the masses of MgSO4 : H2O =  40.1 : 41.9

Dividing these by the molar masses we get

40.1/ 120.4 to  41.9 / 18.016

= 0.33 : 2.33

= 1 : 7.

So there are 7 water molecules n the hydrate.

---

0,0(0 оценок)