it depends on how much water you have. but the density is 1g/cm^(3) .
Sodium hydroxide has the formula NaOH and it contains three atoms, one each of Sodium, Hydrogen and Oxygen.
First you need to organize what you need to determine the number of atoms in 1 mg of As. You need to know the following:1 mol As = 74.92160g As (from the periodic table)1 mol As = 6.022 x 1023 atoms As (Avogadro's number)1000mg = 1g As (conversion from mg to g)Now we start the calculations:1) Convert mg to g.1mg As x (1g/1000mg) = 0.001g As2) Convert g As to moles As0.001g x (1mol As/74.92160g As) = 1.3 x 10-5mol As3) Convert mole As to atoms of As1.3 x 10-5mol As x (6.022 x 1023 atoms As/1mol As As) =7.8 x 1018 atoms AsSo, the answer to your question, is that 1mg of As has 7.8 x 1018 atoms As
One pound = 0.453592kg. One Mole of H = 1g 0.453592kg of H = 453.592 mole of H According to the ideal gas law, one mole of gas will occupy 22.4 liters as stp. One pound of H will occupy 10,160.2608 liters, or 358.806 cubic feet. Be careful. Most applications of this calculation will deal with hydrogen gas, which has two hydrogen atoms per molecule at standard temperature and pressure. In such cases, divide the volume calculated above by two.
The atomic mass of hydrogen is approximately 1 atomic mass unit, the atomic mass of nitrogen is approximately 14 atomic mass units, and the atomic mass of oxygen is approximately 16 atomic mass units.
1.66
Yes. One mole (6.022x1023) of hydrogen atoms would have a mass of about 1g.
1
There are 0.5 moles of hydrogen in 1g, as the molar mass of hydrogen is 2g/mol.
There is no fixed number of atoms in 1 atomic mass unit (1 amu) because an atomic mass unit is a unit for measuring the mass of an individual atom. The mass of an atom is determined by the total number of protons, neutrons, and electrons it contains.
In the reaction between 1g of Hydrogen and 19g of Fluorine to form HF, the limiting reactant is Hydrogen. Based on the balanced chemical equation, 1g of Hydrogen will react with 38g of Fluorine to form 2g of HF. In the reaction between 1g of Hydrogen and 80g of Bromine to form HBr, the limiting reactant is Hydrogen. Based on the balanced chemical equation, 1g of Hydrogen will react with 160g of Bromine to form 2g of HBr.
it depends on how much water you have. but the density is 1g/cm^(3) .
Amount of hydrogen gas = 1.0/2.0 = 0.50mol In each molecule of hydrogen gas there are two hydrogen atoms. 1 mol of H2 contains 6.02 x 1023 molecules (avogadro constant). Number of H atoms = 2 x 0.50 x 6.02 x 1023 = 6.02 x 1023
The atomic mass unit (amu) is a unit to measure the mass of atoms and molecules. To convert 1000 amu of iron to grams, you would use the molar mass of iron, which is approximately 56 grams per mole. Therefore, 1000 amu of iron is equal to 17.86 grams (1000 amu ÷ 56 g/mol = 17.86 g).
In chemisty metric weights are used rather than imperial, it makes things a lot simpler. Mole's are easy to calculate all you need to remember is that 1mol is equal in grammes to the molecular mass of the molicule. So water is 2 Hydrogen atoms each of 1.008 atomic mass unit (AMU) and 1 Oxygen atom of 15.999 AMU. So (2x1.008)+15.999=18.015 AMU therefore one mol of water is 18.015g. Two points though. 1: As it is difficult to weigh out to one thousandth of a gramme you often round up especially when using water as volume is often used instead as 1Cm3 is appprox 1g 2:AMU's are approximate weights as different isotopes have different AMU's, therefore 1 mol of water is approx 18.015g.
To find the number of moles in 12g of hydrogen, we first need to determine the molar mass of hydrogen, which is approximately 1g/mol. Then we can divide the given mass (12g) by the molar mass (1g/mol) to find that there are 12 moles of hydrogen in 12g.
1 gram H2 (1 mole H2/2.016 grams)(6.022 X 1023/1 mole H2) = 3 X 1023 atoms of hydrogen gas =========================