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Why is the the number of atoms in one mole of hydrogen twice of the number of atoms in 1 mole of helium?
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Is C6H14 a cycloalkane?
No. It is a normal alkane. In a cycloalkane, the number of hydrogen atoms cannot be more than twice the number of carbon atoms.
Why is a sample of helium is more dense than a sample of hydrogen under the same conditions?
Avagadro's hypothesis was that at a constant pressure and temperature, the number of molecules of two gases at equal volumes will be the same. This is true in that there is always one mole of gas per 22.4 liters no matter what the gas is. However, each gas has a different molarity, or grams per mole. This means that although each gas will have one mole in 22.4 liters, they will have different weights. For example, hydrogen contains 2.02 grams per mole, while helium contains 4 grams per mole. Therefore, at a constant pressure and temperature hydrogen and helium have different weights at the same constant volume.
What is the molecular formula for eicosane with 20 carbons?
Assuming the hydrocarbon is saturated the formula would be C21H44 In a saturated hydrocarbon the number of hydrogen atoms is equal to twice the number of carbon atoms, plus two.
Compare the rate of effusion of hydrogen and helium?
c) Helium effuses 2 times faster than hydrogen. Its like the apple A5 chip which is up to twice as fast as the A4 chip.
How many protons and neutrons are in the nucleus of a helium-4 atom if it has twice as many protons as a hydrogen atom?
Two and two
If C7HxO2 is a carbohydrate what is the value of x?
4, because the number of hydrogen atoms in carbohydrates are twice as much as the number of oxygen atoms.
Is C6H14 a cycloalkane?
No. It is a normal alkane. In a cycloalkane, the number of hydrogen atoms cannot be more than twice the number of carbon atoms.
How many times larger is the number of hydrogen atoms than oxygen atoms in a polysaccharide?
There are twice as many hydrogen atoms as oxygen atoms in a polysaccharide. The general formula for this is Cx(H2O)y.
How many times larger is the number of hydrogen atoms then oxygen atoms in all carbohydrates?
The number of hydrogen atoms is twice the number of oxygen atoms. Glucose is C6H12O6, so there are 12 hydrogen atoms for every 6 oxygen atoms in a molecule.
How many time larger is the number of hydrogen atoms than oxygen atoms in a polysaccharide molecule?
There are twice as many hydrogen atoms as oxygen atoms in a polysaccharide. The general formula for this is Cx(H2O)y.
How many times larger is the number of hydrogen atoms than oxygen atoms in disaccharide?
the basic formula is C6H12O6, so there are twice as many number of hydrogen-to-oxygen atoms. This applies to carbon atoms as well when compared to hydrogen atoms.
Why the number of atoms in one mole of hydrogen is double the number of atoms?
Because hydrogen occurs in nature as the diatomic molecule H2. So every molecule of H2 contains two hydrogen atoms. 1 mole of H2 has 6.022 x 1023 molecules of H2, while the number of atoms is twice that at 1.204 x 1024 atoms.
Are there twice as many hydrogen atoms as oxygen atoms in fatty acids?
no
How many carbons atoms would be present in an alkane that contains 32 hydrogen atoms?
In an alkane the number of hydrogen atoms is two greater than twice the number of carbon atoms. If we reverse this rule, we find that the number of carbon atoms is one less than half the number of hydrogen atoms. 32/2=16 16-1=15 So our alkane would have 15 carbon atoms. This alkane would be pentadecane or one of its isomers.
What is organic compounds in which there are twice as many hydrogen atoms as oxygen atoms?
water
What can be said about the relationship between the number of hydrogen atoms and the number of carbon atoms in an alkane?
Yes: Alkenes follow the general formula: CnH2n (n being the number of carbon atoms in the chain), so in Alkenes, there will be twice as many H atoms than C atoms. Alkanes: CnH2n+2 Alkenes:CnH2n Alkynes:CnH2n-2
Why if sucrose is 51.5 percent oxygen by mass and only 6.4 percent hydrogen by mass is there twice as many hydrogen atoms than oxygen atoms?
Oxygen atoms weigh more than Hydrogen atoms.
