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The compressibility factor for an ideal gas is a. 1.5 b. 1.0 c. 2.0 d. ∞

Compressibility factor of an ideal gas is the correction factor used to describe the deviation of a real gas behaviour from ideal gasIt is... View Article

Calculate the no. of iron atoms present in one molecule of haemoglobin given that haemoglobin contains 0.33% of iron by weight. the molecular weight of it is approx. 67200. options : (1) 1 (2) 2 (3) 4 (4) 6

Percentage of iron present in Haemoglobin = 0.33%Molecular weight = 67200Weight of iron = 0.33/100*67200=221.76The atomic weight of iron =... View Article

According tp VSEPR theory predict the geometry and shape of i3+ ion

The structure of I3+ is bent or V-shaped and the hybridization is sp3 The formula for determining the hybridization is 1/2{No: of valence... View Article

How many grams of conc.nitric acid solution should be used to prepare 250ml of 2m HNO₃?Given the concentrated acid is 70% HNO₃

The term molarity for a provided solution is described as the total number of moles of solute per litre of solution. The molarity of the solution... View Article

Differentiate between buna-n and buna-s.

BUNA-N and BUNA-S are polymers. Both are examples of synthetic rubbers. Let, us know the difference between them. The difference between Buna-N... View Article

How bond order is calculated and why co+ has bond order 3.5?

Bond order=1/2(bonding−anti-bonding)According to molecular orbital diagram, the bond order of CO+ is 3.5The highest occupied molecular orbital is... View Article

How to find the hybridisation of chlorine in chlorate ion?

Hybridization of chlorine in chlorate ion is sp3 hybridized and has a pyramidal shape Hybridization is characterised as the concept of mixing... View Article

Rewrite the given equation in its balanced form and find the n factor of Pb+PbO₂+H₂SO₄PbSO₄+H₂O

Pb+PbO2+H2SO4→PbSO4+H2O We have to balance the given reaction. On balancing the given reaction we get Pb+PbO2+2H2SO4→2PbSO4+2H2O Calculation... View Article

Using Mulliken-barker test how the nitro group is detected?

Answer: Mulliken barker test is used for the detection of the mono nitro group in our compound. -NO2 is reduced to -NHOH ie hydroxylamine group... View Article

Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation: N2(g) + 3H2(g) →2NH3(g) (i) calculate the mass of ammonia produced if 2.00 × 10^3 g dinitrogen reacts with 1.00 × 10^3 g of dihydrogen. (ii) will any of the two reactants remain unreacted? if yes which one ?(iii) what would be its mass?

Dinitrogen and dihydrogen react with each other to produce ammonia N2(g) + 3H2(g) →2NH3(g) 28g 6g 34g 28 g of N2 reacts... View Article

Briefly explain why is sigma bond stronger than pi bond?

This type of covalent bond is formed by the end to end (head-on) overlap of bonding orbitals along the internuclear axis. This is called as... View Article

Calculate the total mass of 1 mole of electrons.

A mole is defined as the amount of a substance that contains exactly 6.02214076 x 1023 ‘elementary entities’ of the given substance. The number... View Article

Primary amines have a higher boiling point then tertiary amines .justify the statement

Amines are one of the most significant classes of organic compounds which are derived by replacing one or more hydrogen atoms with an alkyl or... View Article

Find out the mole fraction of solute in an aqueous solution of 30% NaOH

The mole fraction of any component of a solution is defined as the ratio of the number of moles of that component present in the solution to the... View Article

Predict the conjugate acids for the following brönsted bases: NH2⁻, NH₃ and HCOO⁻

The members of which can be formed from each other mutually by the gain or loss of protons are called conjugate acids and bases pairs. The... View Article

(i) distinguish between flux and slag. (ii) which metals are generally extracted by the electrolytic processes? what positions these metals generally occupy in the periodic table?

(i) Flux and slag Flux is the material or substance that is added to molten metals to bond with impurities that can be readily removed whereas... View Article

4.215 g of a metallic carbonate was heated in a hard glass tube and the co2 evolved was found to measure 1336 ml at 27oc and 700 mm pressure. what is the equivalent weight of the metal?

p1= 760mm p2= 700mmv1 = ? v2 = 1336mLT1=273K T2= 27+273= 300kP1V1/T1 = P2V2/T2760*V1/273 = 700*1336/300V1= 7*1336*273/3*760=1119.7mL =... View Article

Equal weights of ethane and hydrogen are mixed in an empty container at 25°c. the fraction of the total pressure exerted by hydrogen is a. 1 : 2 b. 1 : 1 c. 1 : 16 d. 15 : 16

Let x g of each gas is mixed.Mole of ethane = x/30Mole of hydrogen = x/2Mole fraction of hydrogen = (x/2)/(x/2 + x/30)= 15/16 ⇒ (Partical... View Article

Why electron can not exist in nucleus of an atom?

Electrons are having a negative charge and if they can exist in the nucleus they will be neutralised by the positive charges. By applying... View Article

Calculate the number of atoms in each of the following (i) 52 moles of Ar (ii) 52 u of He (iii) 52 g of He.

Answer:To calculate the number of atoms in a formula, the weight of a sample, its atomic mass from the periodic table and a constant known as... View Article