4 years ago

Under what conditions of temperature and pressure is the behavior of real gases least like that of ideal gases

Chemistry

2 answers:

sasho [114]4 years ago

8 0

The answer to your question is

Low temperature and high pressure

Rus_ich [418]4 years ago

4 0

High temperature and low pressure<--Most likely

Low temperature and high pressure<----Less likely.

So the answer to this is Low temperature and high pressure.

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What is the average isotopic mass of an element that has the following abundances in nature? Isotopic mass: X20 X22 X23 Abundanc

Paladinen [302]

Answer: 20.2

Explanation:

Mass of isotope 1 = 20

% abundance of isotope 1 = 90.5% = $\frac{90.5}{100}=0.905$

Mass of isotope 2 = 22

% abundance of isotope 2 = 8.0% = $\frac{8}{100}=0.08$

Mass of isotope 3 = 23

% abundance of isotope 3 = 1.5% = $\frac{1.5}{100}=0.015$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(20\times 0.905+(22\times 0.08)+(23\times 0.015]$

$A=20.2$

Therefore, the average atomic mass of the element is 20.2.

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3 years ago

What mass of magnesium would combine with exactly 16.0 grams of oxygen

TEA [102]

1.65g MgO = 1g Mg
1.65 - 1 = 0.65 g of O in MgO

solve it using proportion:
1g Mg / 0.65g O = x (g) Mg / 16g O
or 1 / 0.65 = x / 16

24.6 g is the answer.

if 1 gram of oxygen requires 1.65 grams of Mg
then 16 grams of oxygen will require 16 ( 1.65) or 26.4 grams.

3 0

3 years ago

Which compound is covalently bonded? <br> Select one: <br> a. Al2O3 b. Fe2O3 c. SO2 d. CuCl2

azamat

Answer:

The answer is D-CuCl2

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7 0

3 years ago

Read 2 more answers

Calculate the number of moles in 2.67 g of carbon trihydride

Scorpion4ik [409]