Why is the equivalent mass of oxygen 8?
Table of Contents
- 1 Why is the equivalent mass of oxygen 8?
- 2 How many atoms of oxygen are there in 16 g of oxygen?
- 3 What is equivalent wt of oxygen?
- 4 How is equivalent weight calculated?
- 5 Which of the following has largest number of particles a 8g of ch4 B 4.4 g of c2h3211 c2g c2g11 d2g h2?
- 6 How much does oxygen 18 weigh?
- 7 Which of the following has same number of moles as are present in 8 g of O2?
- 8 Which of the following is number of molecules present equal to those present in 16 grams of oxygen?
- 9 Why is the molecular mass of oxygen 16 amu?
- 10 What is the mass of one mole of oxygen in grams?
Why is the equivalent mass of oxygen 8?
One gram of hydrogen reacts with eight grams of oxygen to produce nine grams of water, so the equivalent weight of oxygen was defined as eight grams. Since Dalton supposed (incorrectly) that a water molecule consisted of one hydrogen and one oxygen atom, this would imply an atomic weight of oxygen equal to eight.
How many atoms of oxygen are there in 16 g of oxygen?
$ \Rightarrow {n_a} = 6.023 \times {10^{23}}$, hence the number of atoms present in $16g$ of oxygen molecule is $6.023 \times {10^{23}}$.
Why is the molecular weight of oxygen 16?
Atomic mass of an element is the relative mass of its atom as compared with the mass of a carbon-12 atom taken as 12 units. Hence, atomic mass of oxygen is 16 u means that one atom of oxygen is 16 times heavier than 1/12 of a carbon-12 atom.
What is equivalent wt of oxygen?
Oxygen has an atomic weight of 15.999 and always assumes valence 2 in compounds, so its equivalent weight is 7.9995.
How is equivalent weight calculated?
The equivalent weight of an element is its gram atomic weight divided by its valence (combining power).
What is the mole percentage of O2 in a mixture of 7g of n2 and 8g of O2?
the mole percentage of O2 in a mixture of 7g of N2 and 8g of O2 is? (ans:50\%)
Which of the following has largest number of particles a 8g of ch4 B 4.4 g of c2h3211 c2g c2g11 d2g h2?
Correct answer is option ‘D’.
How much does oxygen 18 weigh?
Oxygen-18
| General | |
|---|---|
| Half-life | stable |
| Isotope mass | 17.9991610 u |
| Spin | 0 |
| Isotopes of oxygen Complete table of nuclides |
What is the atomic mass of oxygen-16?
15.994914
CHEBI:33818 – oxygen-16 atom
| ChEBI Name | oxygen-16 atom |
|---|---|
| Definition | The stable isotope of oxygen with relative atomic mass 15.994914. The most abundant (99.76 atom percent) isotope of naturally occurring oxygen. |
| Stars | This entity has been manually annotated by the ChEBI Team. |
| Supplier Information | |
| Download | Molfile XML SDF |
Which of the following has same number of moles as are present in 8 g of O2?
8g of O2 (0.25 mol) have the same no. of moles in 11g of CO2 (0.25 mol) and 7g of CO (0.25 mol). Both of them have same number of molecules.
Which of the following is number of molecules present equal to those present in 16 grams of oxygen?
16g Of oxygen means 0.5 moles of oxygen. So total number of molecules is ( k*0.5) where k is Avogadro number.
What is the equivalent weight of 16G of oxygen in hydrogen?
The weight of oxygen which is equivalent to one hydrogen is one half of the atomic weight of oxygen. Therefore, 16g / 2 = 8g. In general, the equivalent weight of an element is the atomic weight divided by the oxidation state.
Why is the molecular mass of oxygen 16 amu?
Because 16 is oxygen’s molecular weight. The atomic-mass of oxygen is 16. The masses in the periodic table are the average masses of all the isotopes that are available in nature in their weighted averages. So 16 amu is the atomic-mass, not the molecular-mass.
What is the mass of one mole of oxygen in grams?
The atomic weight of O is 15.9999 units. The book says one mole 15.999 grams. Dealing with O2 as an ingredient to make certain make a certain amount fo product you need need a certain amount of oxygen. Oxygen is Diatomic molecule with a Weight of 32 units. Moles when making chemicals as product. You start with how much product.
What is the equivalent weight of 16G in grams?
Therefore, 16g / 2 = 8g. In general, the equivalent weight of an element is the atomic weight divided by the oxidation state. In the early days of chemistry the equivalent weights where the then known atomic weights. The use of equivalent weights today has largely been dropped.