[from wikipedia] The standard enthalpy of formation"standard heat of formation" of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 bar of pressure and the specified temperature, usually 298.15 K or 25 degrees Celsius). Its symbol is ΔHfO.
The amount of energy required to create one mole of a substance from its constituent parts at standard temperature and pressure.
ΔHf = -83.7 kJmol-1 (kiloJoules per mole).
The heat of formation (enthalpy) for H2O is -285,8 kJ/mol at 25 oC.
-276.5 kJ/mol
2C(s)+H2(g)--->C2H2(g)
approx +52 KJ/mol
zero
-36 kj/mol
Hydrogen bromide is a colorless gas at standard temperature and pressure.
what is the formula name for hyrdrogen bromide as a gas? The name for hydrogen bromide as a liquid is hydroen bromide The name for hydrogen bromide as water is hydrobromic acid
Yes, hydrogen bromide is polar molecules. Hydrgen ion has slightly positive charge. Therefore, water molecules will pull away the hydrogen from hydrogen bromide.
Hydrogen bromide: HBr
3.61g/L D=m/v
Hydrogen bromide is a colorless gas at standard temperature and pressure.
Not a chemical reaction but the formation of hydrogen bromide (or hydrobromic acid, HBr) water solution.
HBr is hydrogen bromide.
Hydrogen bromide (HBr) is a compound.
Hydrogen bromide (HBr) is a compound.
what is the formula name for hyrdrogen bromide as a gas? The name for hydrogen bromide as a liquid is hydroen bromide The name for hydrogen bromide as water is hydrobromic acid
Hydrogen bromide is a strong acid.
Hydrogen + Bromine ---> Hydgrone Bromide H + Br ---> HBr
Yes, hydrogen bromide is polar molecules. Hydrgen ion has slightly positive charge. Therefore, water molecules will pull away the hydrogen from hydrogen bromide.
HBr is hydrogen bromide (or hydrobromic acid).
Hydrobromic acid is simply hydrogen bromide dissolved in water.
hydrogen bromide is not the electrophile its bromide ion may act as the nucleophile, in alkyl halide the alkyl group may act as an electrophile.