A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

Mg + 2AgNO₃ → Mg(NO₃)₂ + 2 Ag

moles of silver nitrate, AgNO₃ = 9.87

mole ratio AgNO₃ : Mg(NO₃)₂ = 2 : 1, so mol Mg(NO₃)₂ :

$\tt \dfrac{1}{2}\times 9.87=4.935$

mass of Mg(NO₃)₂(MW=148,3 g/mol) :

$\tt mass=mol\times MW\\\\mass=4.935\times 148,3\\\\mass=731.86~g$

4 0

2 years ago

Determining wether the molecule is polar or non polar

Rainbow [258]

Answer:

1) polar

2)polar (not too sure about this one)

3)nonpolar

7 0

3 years ago

How and when do real gases differ from ideal gases?

MrRa [10]

Ok I’m not completely confident on this but I think it’s when there are only little amounts of the gas

6 0

2 years ago

Read 2 more answers

How will temperature affect the spontaneity of a reaction with positive H and S?

BartSMP [9]

Answer:

D.A high temperature will make it spontaneous.

Explanation:

we know that

Δ G = Δ H - TΔS

For spontaneous reaction

Δ G should be negative . If Δ G = 0

Δ H = TΔS

T = Δ H / Δ S

At temperature above this T , Δ G becomes negative if Δ S and ΔH are positive .

So at a high temperature will make it spontaneous.

5 0

3 years ago