Answer:
8 moles = 16 gm of H2 left over
Explanation:
The balanced equation is
2 H2 + O2 ===> 2 H2 O
20 g H2 = 20 g / 2 gm/mole = 10 moles of H2
32 g O2 = 32g / 32 g / mole = 1 mole O2
From the balanced equation, you can see each 2 moles of H2 requires 1 Mole of O2
you would need 20 moles of O 2 to react withe the 10 moles of H2
but you only have 1 mole of O2 so 8 moles of H2 will be left
The net osmosis will occur in the direction of the NaCl solution. This is because the solute concentration on that side is greater than that of the glucose solution. Osmosis is the process by which liquids move through semi permeable membrane from the region of lower concentration to the region of higher concentration.
Thus the water is going to move from the glucose solution into the NaCl solution.<span />
Hola aquí va la respuesta!
Se fomentó la inmigración europea porque la economía no era buena y vinieron a Paraguay para mejorar su situación.
Answer:
Mass = 1.33 g
Explanation:
Given data:
Mass of argon required = ?
Volume of bulb = 0.745 L
Temperature and pressure = standard
Solution:
We will calculate the number of moles of argon first.
Formula:
PV = nRT
R = general gas constant = 0.0821 atm.L/mol.K
By putting values,
1 atm ×0.745 L = n × 0.0821 atm.L/mol.K× 273.15 K
0.745 atm. L = n × 22.43 atm.L/mol
n = 0.745 atm. L / 22.43 atm.L/mol
n = 0.0332 mol
Mass of argon:
Mass = number of moles × molar mass
Mass = 0.0332 mol × 39.95 g/mol
Mass = 1.33 g
The first one would be it
