Home
Class 11
CHEMISTRY
Rahul Dravid wants to wear 6.023xx10^(21...

Rahul Dravid wants to wear `6.023xx10^(21)` Ag atms in the form of a ring. His Silver Gold Copper alloy ring consists of 20% of Silver. The mass of the is 0.9 x. What is x?

Text Solution

Verified by Experts

The correct Answer is:
6

`6.023xx10^(23)` atoms `Ag-108g`
`6.023xx10^(21)` atoms `Ag-108g`
`20gAg-100g Ag-Au` Alloy
`1.08g Ag = (1.08xx100)/(20)=5.4g`
`0.9x = 5.4 implies x=6`
Promotional Banner

Similar Questions

Explore conceptually related problems

0.38 gm of a silver salt of a dibasic acid on ignition gave 0.27 gm of silver. Molecular mass of acid is x xx 10 gm then x value is

Density of a unit cell is represented as rho=("Effectiveno.ofatom(s)x Mass of a unit cell")/("Volume of a unit cell")=(Z.M.)/(N_(A).a^(3)) Where, mass of unit cell = mass of effective no. of atom(s) or ion(s). M = At. wt./formula wt. N_(A)="Avogadro’s no. "rArr 6.023xx10^(23) a = edge length of unit cell Silver crystallizes in a foc lattice and has a density of 10.6g//cm^(3) ? What is the length of an edge of the unit cell?

0.5 molar NaCl and 0.8 molal urea solutions are formed to be isotonic at 27^(@)C then the degree of dissociation of NaCl under these consitions is reported as x xx10% . What is the value of 'x' ?

Half lives of two isotopes X and Y of a material are known to be 2xx10^(9) years and 4xx10^(9) years respectively. If a planet forms with equal number of these isotopes, estimate the current age of the planet, given that currently the material has 20% of X and 80% of Y by number

Two small conductiong ball of identical mass 20 g and identical charge 10^(-10) C hang from non-conducting threads of length, L = 300 cm. If the equilibrium separation of balls is x and x lt lt L then the magnitude of x is (Assume, 4pi in_(0) =1/(9xx10^(9)) F/m and g=10 m//s^(2) )

What is the radius of the path of an electron (mass 9 × 10-31 kg and charge 1.6 ×x 10^(–19) C) moving at a speed of 3 ×x10^7 m/s in a magnetic field of 6 x× 10^(-4) T perpendicular to it? What is its frequency? Calculate its energy in keV. (1eV = 1.6 xx 10^(-19) J)

Silver forms ccp lattice and X-ray studies of its crystals show that the edge length of its unit cell is 408.6 pm. Calculate the density of silver (Atomic mass = 107.9 u).