6.022 x 1023
1 mol of octane (C8H18) reacts with 25 mol of oxygen (O2) to produce 8 mol of CO2 and 9 mol of H2O. Therefore, 0.74 mol of oxygen can react with 0.0744 mol of octane.
To produce 1 mol of water, 2 mol of hydrogen is needed. Therefore, to produce 7.5 mol of water, you would need 15 mol of hydrogen.
1 mol of nitrogen per 1 mol of oxygen. NO2
-5.63mJ/mol
6.65X10^5 kj/mol
The molar mass of sulfur is approximately 32.06 grams/mol. Therefore, 1 mol of sulfur atoms will have a mass of 32.06 grams.
MOL refers to MAXIMUM OVERALL LENGTH. MOL is Maximum Overall Length measurement. MOL of bulb is measured from top of bulb to bottom of Bulb base (or bottom of pins.) Exception is if bulb has flexible wire leads, then measurement does NOT include the length of wires. Actual bulb is likely shorter (sometimes much, much shorter) than the MOL industry standard specification.
4.3 g * 1 mol/18.02 g * 6.03 kJ/mol
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
15.99 x 2 g
The molar mass of copper (Cu) is approximately 63.55 g/mol. To calculate the weight of 2.18 mol of copper, you would multiply the number of moles by the molar mass: 2.18 mol x 63.55 g/mol ≈ 138.49 g. Therefore, 2.18 mol of copper weighs approximately 138.49 grams.
The molar mass of atom 2Al2O7Si2 would be calculated as follows: 2(Al) + 2(O) + 7(O) + 2(Si) = 2(26.98 g/mol) + 2(16.00 g/mol) + 7(16.00 g/mol) + 2(28.09 g/mol) = 404.14 g/mol.