Answer:
N2 + 3H2 + 2NH3
Explanation:
I'm assuming you're balancing the chemical equation
The chemical formula for sodium and sulfur is Na2S I believe...
Answer:
1.Electric generators (mechanical energy to electricity)
2.Windmills (mechanical energy to electricity)
From the information provided in the question, the mass of NiCl2 required is 0.23 g.
NiCl2(aq) + 2AgNO3(aq) -------> 2AgCl(s) + Ni(NO3)2(aq)
Number of moles of AgCl= Mass/molar mass
Molar mass of AgCl= 143 g/mol
Substituting values;
Number of moles = 503 × 10^-3g/143 g/mol= 0.00352 moles
Since 1 mole NiCl2 precipitates 2 moles of AgCl
x moles of NiCl2 precipitates 0.00352 moles of AgCl
x = 1 mole × 0.00352 moles/2 moles
x = 0.00176 moles of NiCl2
Mass of NiCl2= 0.00176 moles × 130 g/mol = 0.23 g
Learn more: brainly.com/question/2510654
Depression in freezing point is a colligative property i.e. it depends upon under of solute particles present in solution.
Depression in freezing point (ΔTf) is mathematically expressed as,
ΔTf = Kf X m ............... (1)
where Kf = cryoscopic constant
m = molality of solution
If solvent used is water, Kf = 1.853 K Kg/mol and Freezing point of pure solvent = 0 oC
∴ΔTf = 0.58 K ............... (2)
Substituting 2 in 1 we get
0.58 = 1.853 X m
∴ m = 0.313 m
Thus, molality of solution is 0.313 m