Calculate number of neutrons present in `12 xx 10^25` atoms of oxygen `(8O^17)`: (Given : `N_A=6 xx 10^23`)

Calculate number of neutrons present in 12 X 10^25 atoms of oxygen (8O^17) : (Given : N_A = 6 X 10^23 )

If mass of one atom is 3.32 xx 10^(-23)g, then calculate number of nucleons (neutrons and protons) present in 2 atoms of the element: (a) 40 (b) 20 (c) 10 (d) 40 NA

How many carbon atoms are present in 0.35 mole of C_(6)H_(12)O_(6) ? ("Given : N"_(A)=6.023xx10^(23))

Number of electrons present in 3.6 mg of NH_(4)^(+) are : (N_(A) = 6 xx 10^(23))

A box contains 12xx10^(22) number of oxygen atoms. Find moles of O-atoms? (N_(A)=6xx10^(23))

Calculate the number of moles present in 160 gm of NaOH. [Atomic Mass : Na = 23, H = 1, O = 16]

A diatomic molecule X_2 has a body- centred cubic (bcc) structure with a cell edge of 300pm. The density of the molecuel is 6.17 g cm^(-3) . The number of molecules present in 200 g of X_2 is : (Avogadroconstant (N_A)= 6 xx 10^23 mol^(-1) )

If mass of one atom is 3.32 xx 10^(-23)g, then calculate number of nucleons (neutrons and protons) present in 2 atoms of the element:

If mass % of oxygen in monovalent metal carbonate is 48% ,then find the number of atoms of metal present in 5mg of this metal carbonate sample is ( N_(A) = 6.0 xx 10_(23) )

Calculate the number of oxygen atoms in 0.20 mole of Na_(2)CO_(3).10H_(2)O .