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mylen [45]
3 years ago
11

What does the atomic mass of a neutral atom tell you?

Chemistry
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

yes

Explanation:

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Nitrogen monoxide and hydrogen react to form nitrogen and water, like this: 2NO+2 H2(g)-N29)+2H2O(9) Write the pressure equilibr
lara31 [8.8K]

Answer:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)² = Kp

Explanation:

The reaction is:

2NO + 2H₂ → N₂ + 2H₂O

The expression for Kp (pressure equilibrium constant) would be:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)²

There is another expression for Kp, where you work with Kc (equilibrium constant)

Kp = Kc (R.T)^Δn

where R is the Ideal Gases constant

T° is absolute temperature

Δn = moles of gases formed - moles of gases, I had initially

4 0
4 years ago
By definition 12 grams of carbon-12 must contain how many atoms?
krek1111 [17]
It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 molecule contains 6.022×10^23 elementary entities of the substance.

Hope that helps
5 0
4 years ago
Why is temperature not a chemical change
GrogVix [38]

Answer:

Temperature is not a chemical change because when a substance changes in temperature, its chemical makeup is not changing.

6 0
3 years ago
Read 2 more answers
The ability of an atom to attract the shared electrons in a covalent bond is its
DochEvi [55]
<span>The ability of an atom to attract the shared electrons in a covalent bond is its:</span>electronegativity.
8 0
3 years ago
What volume of NaOH(aq) would be needed to reach the equivalence point if the concentration of the added base were 0.290 M?
DiKsa [7]

Answer:

17.2mL are needed

Explanation:

<em>The pH curve for titration of 50.0 mL of a 0.100 M solution of hydrochloric acid</em>

<em />

A strong acid as HCl reacts with a strong base as NaOH producing water and a salt. The chemical equation is:

HCl + NaOH → H₂O + NaCl

<em>Where 1 mole of HCl reacts per mole of NaOH</em>

<em />

To solve this question we must find the moles of HCl added = Moles NaOH you must add to reach the equivalence point. With these moles and the molar concentration we can find the volume that would be needed as follows:

<em>Moles HCl:</em>

50.0mL = 0.0500L * (0.100moles / L) = 0.00500 moles HCl = Moles NaOH

<em>Volume NaOH:</em>

0.00500 moles NaOH * (1L / 0.290moles) = 0.0172L NaOH =

<h3>17.2mL are needed</h3>
3 0
3 years ago
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