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Sliva [168]
3 years ago
9

Pleae help for a brainlist urgent time is running out !!!!!!!!!

Chemistry
1 answer:
Effectus [21]3 years ago
5 0

Answer:

a) 3

b) 5

c) 4

d) it can be 1/2/3

e) it can be 2/3

f) it can be 2/3/4

g) it can be 4/5

h) 4

Explanation:

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in example 5.11 of the text the molar volume of n2 at STP is given as 22.42 L/mol how is this number calculatd how does the mola
Valentin [98]

Answer:

V = 22.42 L/mol

N₂ and H₂ Same molar Volume at STP

Explanation:

Data Given:

molar volume of N₂ at STP = 22.42 L/mol

Calculation of molar volume of N₂ at STP  = ?

Comparison of molar volume of H₂ and N₂ = ?

Solution:

Molar Volume of Gas:

The volume occupied by 1 mole of any gas at standard temperature and pressure and it is always equal to 22.42 L/ mol

Molar volume can be calculated by using ideal gas formula  

                               PV = nRT

Rearrange the equation for Volume

                            V = nRT / P . . . . . . . . . (1)

where

P = pressure

V = Volume

T= Temperature

n = Number of moles

R = ideal gas constant

Standard values

P = 1 atm

T = 273 K

n = 1 mole

R = 0.08206 L.atm / mol. K

Now put the value in formula (1) to calculate volume for 1 mole of N₂

                   V = 1 x 273 K x 0.08206 L.atm / mol. K / 1 atm

                   V = 22.42 L/mol

Now if we look for the above calculation it will be the same for H₂ or any gas. so if we compare the molar volume of 1 mole N₂ and H₂ it will be the same at STP.

6 0
3 years ago
What type of energy does a cup sitting on a table have? Why?
Sedbober [7]

Answer:

POTENTIAL ENERGY

A cup sitting on a table possesses potential energy

Explanation:

Answer Expert Verified

5 0
3 years ago
How can volcanic eruptions cause the average temperature on the planet to drop
Vera_Pavlovna [14]
I just took the test it is A hope this helps :)
5 0
4 years ago
What is the concentration of OH- in pure water at 298k
kvasek [131]
The answer is pH+pOH=14
4 0
3 years ago
Three students use a meterstick with millimeter markings to measure a length of wire. Their measurements are 3 cm, 3.3 cm, and 2
Volgvan

Answer: 3 cm

Explanation:

7 0
3 years ago
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