Formula units are there in 212 grams of MgCl₂ are 830.56
Formula is the empirical of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations and it is the lowest whole number ratio of ions represented in an ionic compound
Here given data is
MgCl₂ = 212 grams
1 mole of magnesium chloride has mass = 95.211 gram and contains 6.022×10²³formula units of magnesium chloride
Here 212 grams×6.022×10²³form unit of MgCl₂/95.211 gram = 830.56
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Answer:
Crud I don't know much about chemistry, sorry I couldn't help
Have a good day tho
Answer:
Temperature = 6.91K
Explanation:
Temperature = T
Number of Moles = 2.49moles
Volume = 1.0L
Pressure = 143kPa
R = 8.31kPa*L/mol.K
From ideal gas equation,
PV = nRT
P = pressure of the ideal gas
V = volume which the gas occupies
n = number of moles of the gas
R = ideal gas constant
T = temperature of the ideal gas
PV = nRT
T = PV / nR
T = (143 * 1) / (2.49 * 8.31)
T = 143 / 20.6919
T = 6.91K
The temperature of the gas is 6.91K
Answer:
19.2g
Explanation:
The equation of the reaction is;
Li3N(s) +3H2O(l) ---->NH3(g) +3LiOH(aq)
From Avogadro's law we know that 1 mole of any gas occupies a volume of 22.4 L under standard conditions.
It is also clear from the equation that 1 mole of lithium nitride produces 1 mole of ammonia occupying 22.4L volume
Hence;
1 mole of Lithium nitride yields 22.4 L of ammonia
x moles of lithium nitride yields 12.26L of ammonia
x= 12.26×1/22.4
x= 0.55 moles of lithium nitride
Molar mass of lithium nitride= 34.83 g/mol
Mass of lithium nitride = number of moles × molar mass
Mass of lithium nitride= 0.55 moles × 34.83 g/mol
Mass of lithium nitride = 19.2g