Advertisements
Advertisements
Question
Write the molecular formulae of Sodiun sulphide:
Advertisements
Solution
sodium sulphide - `"Na"_2"S"`
APPEARS IN
RELATED QUESTIONS
What does 2C02 represent ?
Write the molecular formulae of Calcium phosphate :
Write the molecular formulae of Aluminium sulphate :
The valency of sodium is one, write the molecular formula for sodium oxide ?
The valency of sodium is one, write the molecular formula for sodium carbonate ?
Fill in the blank
_______ is a triatomic molecule.
State the term
The symbolic representation of a molecule ______
Write the cations and anions present, if any, in the following :
- CH3COONa
- NaCl
- H2
- NH4NO3
If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.
Calculate the number of molecules present in a drop of chloroform (CHCl3) weighing 0.0239 g.
(Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)
Fill in the blank:
The formula of aluminium sulphate is _________.
State the correct formula of the following from the option given:
Ammonium sulphate
State the correct formula of the following from the option given:
Copper [II] nitrate
Calculate the number of water molecules present in one drop of water which weighs 0.18 g.
How many atoms are present in a PO4 3– ion?
Express each of the following in kilograms
5.84 × 10−3 mg
Express each of the following in kilograms
58.34 g
Express each of the following in kilograms
5.873×10−21g
A group of atoms carrying a fixed charge on them is called ————.
A molecule that contains only one atom is called ______ molecule.
