Nitrogen is classified as a gas and a nonmetal.
Answer:
8.87 * 10^23 molecules of Ne
Explanation:
STP means standard temperature and pressure which is 0 degree Celsius and 1 atm. There's a law that says at STP 1 mole of any gas at occupies 22.4 liters of volume. We are gonna use this to do our conversion.
33.0 L Ne * 1mol Ne/22.4L Ne = 1.47321428571 mol Ne (this is moles of Neon)
Now we know avogadro number says there's 6.022*10^23 molecules in 1 mole of anything so we use this to convert the previously calculated moles of Neon to moleculues.
1.47321428571 mol Ne * 6.022*10^23 molecules/1mol Ne = 8.87 * 10^23 molecules of Ne
Option (C) is the correct answer. In the chemical reaction, reactants are the starting elements or compounds which will chemically react and will form the products. Reactants are only present on the left hand side of the reaction and products are present on the right hand side of the reaction.
did anyone able to look up this question
<u>The </u><u>emperical formula </u><u>can be </u><u>calculated </u><u>as follows:</u>
<u>mass :</u> 4.12g of N and 0.88g of H
<u>moles:</u> 4.12g/14.007 and 0.88g/1.008
<u>moles:</u> 0.294 and 0.873
<u>moles/smallest number</u>: (gives the ratio of atoms)
0.294/0.294 and 0.873/0.294
1 and 2.969
1 and 3
The simplest ratio of N : H is 1 : 3
<u>Hence the </u><u>emperical formula </u><u>is </u><u>NH3</u>
<u>Explanation:</u>
1. The emperical formula can be found by getting the <u>simplest ratio of atoms in a molecule.</u>
2. To get the simplest ratio of atoms we find out the <u>number of moles of each atoms in it.</u>
3. From the number of moles of atoms we can find the simplest ratio of each atom by dividing the <u>number of moles by the smallest number.</u>