If a protein has 0.07% Fe (M=56) by weight as the only metal, its molar mass would be at least `M ×10^(4)`g .Here m is

What is the weight of a block of mass 10.5 kg ? Take g= 10 m s^(-2)

The weight of a body is 2.0 N. What is the mass of the body ? (g = 10 m s^(-2) )

A metal crystallises in a bcc lattice ,its unit cell edge length in about 300 pm and its molar mass is about 50g mol^(-1) what would be the density of the metal (in g cm^(-3)) ?

The strengths of 5.6 volume hydrogen peroxide (of density 1g/ mL) in terms of mass percentage and molarity (M) , respectively are : (Take molar mass of hydrogen peroxide as 34g / mol )

An oxide of metal M has 40% by mass of oxygen. Metal M has relative atomic mass of 24. The empirical formula of the oxide is:

Equivalent weight of KmNO_(4) when it is convert into MnSO_(4) is Where M = molar mass of KMnO_(4) .

Which of the following elements has least number of electrons in its "M" shell ?

A 0.534 g of a sample of haemoglobin on analysis was found to contain 0.34% Fe . If each haemoglobin molecule has four Fe^(2+) ions, what is the molecular mass of haemoglobin ? (Fe = 56 "amu")

M^(2+) +2e rarr M. 0.275 g of metal M is deposited at the cathode due to passage of 1A of current for 965s. Hence atomic weight of the metal M is:-

Five moles of helium are mixed with two moles of hydrogen to form a mixture. Take molar mass of helium M_(1) = 4g and that of hydrogen M_(2) = 2g The equivalent molar mass of the mixture is