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This is to do with the intermolecular forces in the two compounds. There are no hydrogen bonds between the molecules of either compound, since Br and I are not electronegative enough to polarise the molecules sufficiently. But since HI molecules contain more electrons than HBr, there are increased van der Waals forces in HI. For the same reason HBr has a higher boiling point than HCl, but HF has a higher boiling point than HCl, HBr or HI because of hydrogen bonding.
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What state is bromine at room temperature?
The element bromine is in the state of a liquid at room temperature (room temperature is roughly 20 degrees Celsius). This is because it's boiling point is 59 degrees Celsius, which is 39 degrees more then room temperature.
What is the chemical formula of aqueous solution of Hydrogen bromine?
HBr In a chemical equation you would write it as HBr(aq).
Is HBr and NaBr a buffer?
This does not make a buffer because HBr is a STRONG acid, and for a buffer you need a WEAK acid and the salt of the acid.
Is Hbr an ionic compound?
Hydrogen bromide is covalent. Pure HBr has a melting point of -114.20C and a boiling point of -85.10C. The molecule has a dipole moment which is due to the poalr nature of the chemical bond. In water HBr is a strong acid, hydrobromic acid, and is pretty well completely dissocaiated.
Symbol of hydrogen bromide?
HBr ok
Which molecule has a higher boiling point Cl2 or Br2?
HCL has a higher boiling point compared to HBr This is due to difference in electronegativity. H - 2.1 Cl - 3.0 Br - 2.8 The difference for HCl is 0.9, the difference for HBr is 0.7. The larger the difference in electronegavity means the stronger the bond. Large difference means greater attraction hence more energy is needed to overcome this bond.
Why hydrogen bromide has higher boiling point than hydrogen fluoride?
Hydrogen fluoride has higher boiling point than hydrogen bromide ( HF 19.5 C HBr -66 C) because in hydrogen fluoride has two kinds of forces, one is hydrogen bonding and other is London dispersion forces. In Hydrogen bromide there are only london dispersion forces. These are weaker than hydrogen bonds therefore HF has the higher boiling pint.
What is the boiling and melting point of HBR?
Hydrobromic Acid (HBr) Melting point: -11 °C (47-49% w/w aq.) Boiling point: 122 °C at 700 mmHg (47-49% w/w aq.)
Does HCl a lower boiling point than either HF or HBr?
Yes, it is true: -85,1 0C at 1, 013 bar.
Why does hydrogen iodide have a higher boiling temperature than hydrogen bromide?
There is no hydrogen bonding in HBr and HI. The intermolecular forces are London dispersion forces- HI has more electrons, so more instantaneous induced dipole-dipole interaction- more intermolecular force- and therefore a higher boiling point.
Which has a higher boiling point HI or HCl?
HI has a higher boiling point because of the dipole-dipole Intermolecular forces as well as the dispersion forces, which become more evident with molecular weight, which will dominate over the dipole-dipole forces, so HCl has a lower boiloing point.
Which has a lower melting point HFor HBr?
HBr has a lower melting point of -86.8 degrees C. HF has a melting point of -83 degrees C.
Which has the highest boiling point H2S or H2Se or H2O?
Water has the highest boiling point, as the hydrogen bonds between the molecules need more energy to break than the hdyrogen bonds in H2S, and H2Se, as Oxygen is much more electronegative than Sulphur of Selenium, so it makes the molecules more polar.
Write the expression for Ka for the dissociation of HBr?
Ka = [H+].[Br-] / [HBr] However the value of this expression is very high, because HBr is a STRONG acid, meaning that much more than 99.9% of the HBr molecules in water are protolized (ionized), making [H+] and [Br-] equal to the original (added) HBr amount, and the [HBr]-value nearly zero.
What has high melting point HCL HBr H2O Br2?
H2o
Why HBr is weaker Acid than HCl?
actually HBr is stronger acid than HCl so i think you got something mixed up
Is Cl a stronger base than Br?
yes it is, because HBr is a stronger acid than HCl, therfore, HBr will have a weaker conjugate base, Br, than HCl, Cl
