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sukhopar [10]
2 years ago
11

Which of these compounds has the greatest percentage of nitrogen? NO2 N2O4 N3O6

Chemistry
1 answer:
soldier1979 [14.2K]2 years ago
8 0

Answer:

Same in  all compounds

Explanation:

We know that

mass percentage of N = [mass of N/ mass of compound] ×100

In NO2, N% = 14/(14+32)×100

= 14/46×100

= 30.43%

In, N2O4,  N% = 28/(28+64) ×100 = 28/92×100 =30.43%

Similarly, in N3O6 also the % of N = 30.43%

So, percentage of Nitrogen is same in all given compound. That is 30.43%

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Explanation:

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An ambient pressure of 1 atm
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3 years ago
A chemist has 2. 0 mol of methanol (CH3OH). The molar mass of methanol is 32. 0 g/mol. What is the mass, in grams, of the sample
natima [27]

The mass, in grams, of the sample of methanol (CH₃OH) is 64 grams.

<h3>How we calculate mass from moles?</h3>

Mass of any substance can be calculated by using moles as:

n = W/M, where

W = required mass

M = molar mass

In the question that:

Moles of methanol = 2mole

Molar mass of methanol = 32g/mole

On putting these values in the above equation, we get

W = n × M

W = 2mole × 32g/mole = 64g

Hence, 64 grams is the mass of the sample.

To know more about moles, visit the below link:

brainly.com/question/15374113

6 0
2 years ago
A car travels 150 meters in 3.5 seconds what is its speed?
defon

Answer:

The solution is given below.

Explanation:

Speed   = Distance(m)/Time(sec.)

Distance traveled = 150 m

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Speed of car = 150/3.5 = 42.86 m/s

So the car traveled at a speed of 42.86 m/s.

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