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3 years ago

Identify factors that affect the ratio when substances combine to form compounds

1 answer:

7 0

The law of constant proportions affects the ratio when two or more substances combine to form a new substance. The law of constant proportion, also known as Proust's law or the law of definite composition, states that a chemical compound will always have its component elements in a fixed proportion, regardless of the pathway undertaken to prepare that substance.<span />

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To produce 8 molecules of ammonia, NH3, we would need ___________ molecules of hydrogen, H2 and ____________ molecules of nitrog

Setler79 [48]

I have included the work and the process which is easiest for me to balance chemical equations. I hope it helps!

7 0

3 years ago

Calculate the volume of 5.00 mol of helium at 120C and 1520 mm Hg

levacccp [35]

Answer:

80.7 L

Step-by-step explanation:

This looks like a case where we can use the Ideal Gas Law to calculate the volume.

pV = nRT Divide both sides by p

V = (nRT)/p

=====

Data:

n = 5.00 mol

R = 0.082 06 L·atm·K⁻¹mol⁻¹

T = (120 +273.15) K = 393.15K

p = 1520 mmHg × 1 atm/760 mmHg = 2.00 atm

=====

Calculation:

V = (5.00 × 0.082 06 × 393.15)/2.00

V = 161.3/2.00

V = 80.7 L

4 0

3 years ago

What is the concentration of silver ions where silver iodide, Agl, is in a solution of hydroiodic

jonny [76]

Answer:

$[Ag^+]=2.82x10^{-4}M$

Explanation:

Hello there!

In this case, for the ionization of silver iodide we have:

$AgI(s)\rightleftharpoons Ag^+(aq)+I^-(aq)\\\\Ksp=[Ag^+][I^-]$

Now, since we have the effect of iodide ions from the HI, it is possible to compute that concentration as that of the hydrogen ions equals that of the iodide ones:

$[I^-]=[H^+]=10^{-3.55}=2.82x10^{-4}M$

Now, we can set up the equilibrium expression as shown below:

$Ksp=8.51x10^{-17}=(x)(x+2.82x10^{-4})$

Thus, by solving for x which stands for the concentration of both silver and iodide ions at equilibrium, we have:

$x=[Ag^+]=2.82x10^{-4}M$

Best regards!

6 0

3 years ago

What is the Newton's fourth law

Bad White [126]

Answer:

the law says the temperature difference between two objects falls exponentially.

doesn't change in time and no heating or cooling would happen.

6 0

3 years ago

Read 2 more answers

Which type of heat exchanger shell and tube or plate heat exchanger is suitable for evaporation?

klasskru [66]

Answer:

shell and tube type heat exchanger

Explanation:

for evaporation the shell and tube type heat exchanger is best suited.

in the plate heat exchanger there is gaskets in between every part so this part become weak part in heat echanger and there is possibilities of leakage through this part, there is no such problem in shell and tube type.
the plate type cant be used when there is high temperature and high pressure drop but shell and tube type can be used
in evaporation there the liquids change into vapors due to which there is sudden change in pressure and in which plate type is not used because there is chances of leakage

5 0

2 years ago