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Does one mole of water contain half mole of oxygen atoms?
Well, 1 molecule of water is made up of 2 hydrogens and 1 oxygen. And it is not possible to have 1/2 a molecule of water, therefore, you have to have at least 1 complete oxygen in there, not 1/2.
Is electrolysis of water an example of exothermic process?
Breaking chemical bonds is always endothermic. 463 kJ/mole are required to break O-H bonds. There are two O-H bonds per water molecule, so one mole of water requires 926kJ to break all the bonds. this energy requirement is supplied by the electrical current.
Can a polyatomic ion form chemical bonds.?
A polyatomic ion can form an ionic bond with another ion, and an ionic bond is a type of chemical bond. Some examples: One mole of ammonium ions plus one mole of chloride ions produces one mole of ammonium chloride. NH4+ + Cl- ---> NH4Cl One mole of magnesium ions plus two moles of nitrate ions produces one mole of magnesium nitrate. Mg2+ + 2NO3- ---> Mg(NO3)2
What is the molecular formula for ethyne?
To calculate the molecular mass of any substance, you need the periodic table and the formula of the substance. So you want the molecular mass of ethane? so ethane's formula is C2H6 Break up the atoms there are 2 carbons and 6 hydrogen Now get your periodic table and look at carbon's atomic mass, you may want to round it to get a whole number answer. so for carbon the atomic mass is 12, and we have 2 carbons, so simply do 12 *2 = 24 Now do the same for hydrogen Hydrogen's atomic mass = 1 6 hydrogens = 1*6 = 6 Now add the total atomic masses together for to get 24 + 6 = 30 , which is the molecular mass of ethane. easy as that!!!
How many Carbon atoms are in 0.383mg of C20H2402?
What kind of formula is that? You are saying, two carbons, one oxygen, twenty four hydrogen atoms and then two more oxygen atoms. C2H24O3 ?????? Remember, you asked for it, but you can follow this general form. 0.383 mg C2OH24O2 (1 gram/1000 mg)(1 mole C2OH24O2/96.212 grams)(2 mole C/1 mole C2OH24O2)(6.022 X 10^23/1 mole C) = 4.79 X 10^18 atoms of carbon in that weird formula ------------------------------------------------------------------------
How many grams are there in 0.61 mol of C6H12?
First calculate how many grams a mole of C6H12 weighs: Hydrogen is 1, and you have 12 hydrogens. Carbon is 6 and you have 6 carbons. So a mole weighs 1x12 + 6x6 = 48. Now multiply 48 x .61 and you have it. Final answer is in grams
What happens to the bonds between atoms in a substance that undergoes a chemical reaction?
At least one electron from one of the atoms is transferred from an orbital where it occurs in a single atom to either an orbital in one of the other atoms, forming an ionic bond between the two atoms, or to a different orbital that can exist only under the influence of two atoms, forming a covalent bond between the two atoms. In the latter instance, but not the former, the atoms bonded can be atoms of the same element.
How many moles of ethanol are contained in 57.38 grams of ethanol C2H5OH?
remember that mass divided by molecular mass = the number of moles the atomic mass' are as follows : C = 112.01 O = 16 H = 1.01 the molecular mass of a methanol molecule is that of 2 carbons 6 hydrogens and one oxygen = 46.08g following you divide 25g(measure of mass) by 46.08(atomic mass) = 10.54 mole. (the grams will cancel with each other leaving mole as the unit if you want to take a strictly mathmathical point of view)
What are some physical properties used to organize the periodic table?
The historically popular chart to which you refer is partially organized by the amount of carbons present in the mole. ;P
How many atoms of 5.60 moles of C2H6?
Okay, 1 mole of any substance contains 6.02x1023 representative particles. So, if you have a mole of C2H6 (ethane), you have Avogadro's number of molecules. You're asking about atoms, so if you look at the formula for ethane, you see 2 carbons and 6 hydrogens for a total of 8 atoms per molecule. Multiply Avogadro by 8 to get the total number of atoms. Then multiply by the given number of moles.6.02x1023 x 8 (#of atoms) x 5.6 (number of moles) = 269.7x1023 = approximately 2.7x1025 atoms.
Does one mole of water contain half mole of oxygen atoms?
Well, 1 molecule of water is made up of 2 hydrogens and 1 oxygen. And it is not possible to have 1/2 a molecule of water, therefore, you have to have at least 1 complete oxygen in there, not 1/2.
Does One mole of water contains half mole of oxygen atoms?
Well, 1 molecule of water is made up of 2 hydrogens and 1 oxygen. And it is not possible to have 1/2 a molecule of water, therefore, you have to have at least 1 complete oxygen in there, not 1/2.
What is the mole to mole ratio of nitrogen gas and hydrogen gas?
1:3 because...in the equation N2+3H2---> 2NH3the product is 2NH3... there are 2 Nitrogens and 6 Hydrogens (2*3) making the ratio 2:6; but the correct simplified answer is 1:3
Is electrolysis of water an example of exothermic process?
Breaking chemical bonds is always endothermic. 463 kJ/mole are required to break O-H bonds. There are two O-H bonds per water molecule, so one mole of water requires 926kJ to break all the bonds. this energy requirement is supplied by the electrical current.
Calculate the energy released in the formation of one mole of bonds not lattice energy The radius of the magnesium ion is 1.60 and the radius of the selenide ion is 1.26 Note that?
-1950 kj/mole
How do you do the atiomic mass of h2so4?
Per mole H2SO4.Two hydrogens; 2 * 1.008 g/mol = 2.016One sulfur; 1 * 32.07 g/mol = 32.07Four oxygen; 4 * 16/g/mol = 64--------------------------------------------------------add the bold= 98.086 grams/mole========================Sulfuric acid
Is an atom bigger than a mole?
An atom is a component of matter; mole is a unit for the amount of substance in SI. Of course a mole of atoms is bigger than a single atom.
