How many molecules are there in 14 g of nitrogen at s.t.p.? [N = 14, Avogadro's constant = 6.02 x 10\(^{23}\) mol-1]

fortuneduukere

6 years ago

I mole of Nitrogen gives 6.02*10^23
Recall that, Molar conc. = Mass/molar mass = 14/14 = 1
Therefore if 1 mole of Nitrogen gives 6.02*10^23
1 Mole will give 6.02*10^23*1/1 = 6.02*10^23
That's my own trial, I am not 100 % sure of the answer.

Theoretically

5 years ago

AT STP NITROGEN IS DIATOMIC SO THE ANSWER IS DEFINITELY B

Ugwu21Desmond01

2 years ago

Nitrogen is diatomic and hence N₂
Number of mole = mass/molar mass
= 14/28
= 0.5

6.02×10²³ • 0.5 = 3.01×102²³

Myschool, please effect the change immediately

peter samson

9 years ago

please sumone explain

Blackvillian

7 months ago

the answer is wrong
you have to find the mole first which 14/28=0.5 mole
therefore 0.5*6.02*10^23=3.01*10^23

temmyralph08

1 year ago

Nitrogen is a diatomic gas at stp therefore:
To find the number of molecules in 14 g of nitrogen, we need to follow these steps:

Step 1: Determine the number of moles
First, we need to find the number of moles of nitrogen. We can do this by dividing the mass of nitrogen by its molar mass.

Number of moles = Mass of nitrogen / Molar mass of nitrogen
= 14 g / 28 g/mol (since N2 is a diatomic molecule, its molar mass is 2 x 14 = 28 g/mol)
= 0.5 mol

Step 2: Calculate the number of molecules
Now that we know the number of moles, we can calculate the number of molecules using Avogadro's constant.

Number of molecules = Number of moles x Avogadro's constant
= 0.5 mol x 6.02 x 10^23 molecules/mol
= 3.01 x 10^23 molecules

Myschool Nuel

1 year ago

Thank you all for your contributions. It is highly appreciated.

Wumzyparaboss

1 year ago

The answer is b
Nitrogen is diatomic

OjileClementOjile

4 years ago

The answer should be D because nitrogen is diatomic N2.

Mavic111

3 years ago

How many molecules are there in 14g of nitrogen at stp (N=14 Avogrado's constant =6.02*10'23 mol-1

Mavic111

3 years ago

The allotropy of carbon used in the decolourization of sugar is charcoal

temmyralph08

1 year ago

Nitrogen is a diatomic gas at s.t.p therefore:
To find the number of molecules in 14 g of nitrogen, we need to follow these steps:

Step 1: Determine the number of moles
First, we need to find the number of moles of nitrogen. We can do this by dividing the mass of nitrogen by its molar mass.

Number of moles = Mass of nitrogen / Molar mass of nitrogen
= 14 g / 28 g/mol (since N2 is a diatomic molecule, its molar mass is 2 x 14 = 28 g/mol)
= 0.5 mol

Step 2: Calculate the number of molecules
Now that we know the number of moles, we can calculate the number of molecules using Avogadro's constant.

Number of molecules = Number of moles x Avogadro's constant
= 0.5 mol x 6.02 x 10^23 molecules/mol
= 3.01 x 10^23 molecules

Verabidex

9 years ago

It should be A now

Debayos bay

9 years ago

The correct answer is A