The branch of Chemistry which deals with hydrocarbons:
(c)
The atomic mass of an element expressed in gram is:
(b)
Which of the following can be separated by physical means?
(a)
The molar mass of H₂SO₄ is:
To find the molar mass of H₂SO₄ we need to sum up the atomic masses of each element in the compound. For sulfuric acid H₂SO₄: - Atomic mass of hydrogen (H): 1 g/mol - Atomic mass of sulfur (S): 32 g/mol - Atomic mass of oxygen (O): 16 g/mol So, molar mass of H₂SO₄= (2×1 + 32 + 4× 16) g/mol. Calculating this gives us 98 gram/mole
The Molecule consist of two atoms is:
(d)
A formula that indicates actual number and type of atoms in a molecule is called:
(b)
Ethyl alcohol was prepared by:
(d)
Which of the following is a homo atomic molecule:
(a)
The Empirical formula of hydrogen peroxide (H₂O₂) is:
(b)
A piece of matter in pure form is termed as:
(d)