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n200080 [17]
3 years ago
15

The gram-formula mass of NO2 is defined as the mass of

Chemistry
2 answers:
ch4aika [34]3 years ago
4 0
The correct answer is (1) one mole of NO2.

The gram formula mass is also known as the molar mass and is defined by the mass over one mole of a substance.

Hope this helps~
Alika [10]3 years ago
3 0
<span>Correct answer is 1 - one mole of NO2</span> .  
<span>
Gram formula mass can be defined as the mass of 1 mole (6.022 x 10</span>²³ particles<span>) of compound in grams. This is similar to molar mass. Gram formula mass is also calculated by adding the total mass of each element present in the given formula. </span>
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A sample of glucose contains 1.250x10^21 carbon atoms, how many atoms of hydrogen does it contain?
dybincka [34]

Answer:

Hydrogen = 2.5 * 10^21

Explanation:

Chemical Formula Glucose: C₆H₁₂O₆

One of the ways you could do  this is to notice that for every carbon atom there are two Hydrogen atoms. You can state this more formally by using the formula to set up a ratio: 12/6 = hydrogen to Carbon

So if there are 1.250 * 10^21 Carbon atoms in the Glucose sample, then there will be twice as many hydrogen atoms.

H = 2 * 1.25 * 10^21 = 2.5 * 10^21 atoms

You could do this more formally by setting up a proportion.

6 Carbon / 12 Hydrogen = 1.25*10^21 /  x         Cross Multiply

6*x = 12 * 1.25*10^21                                           Combine the right

6x = 1.5 * 10^22                                                  Divide by 6

x = 2.5 * 10^21

5 0
2 years ago
Hey, i need help. the teacher provided notes but they don’t explain ANYTHING.
Arlecino [84]

Answer:

I think

1. A

2. 400

3. 100

4. IDK srry

Explanation:

Ijust want to help, but I also want brainliest

5 0
3 years ago
How many moles of CH4 are in 148.6 g? Round your answer to two decimal places.
Dafna1 [17]

Answer:

9.29 mol

Explanation:

Given data:

Number of moles = ?

Mass = 148.6 g

Solution:

Number of moles = mass/ molar mass

Molar mass of CH₄ = 16 g/mol

Now we will put the values in formula.

Number of moles = 148.6 g/ 16 g/mol

Number of moles = 9.29 mol

Thus 148.6 g have 9.29 moles.

6 0
2 years ago
Read the sentence.
ExtremeBDS [4]

Answer:

The correct answer is "reveal the structures".

Explanation:

The predicate is the part of the prayer that tells us what the subject is doing. In this prayer "The Fossils" is the subject, so we must seek the action that develops from the subject. That action is that the fossils "reveal the structures". In this way, we can find the simple predicate of this sentence.

Have a nice day!

3 0
3 years ago
What are the Sun's layers, beginning with the innermost and moving out.
Lemur [1.5K]
Core, radiative zone, convective zone, photosphere, chromosphere, corona 
4 0
3 years ago
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