A sample of metal weights 210 grams in air 180 grams n water and 120 grams in an unknown liquid then

Question

A sample of metal weights 210 grams in air 180 grams n water and 120 grams in an unknown liquid then

A sample of metal weights 210 grams in air 180 grams n water and 120 grams in an unknown liquid then
A. Metal of 3
B. Metal is 7
C. Liquid of 3
D. Liquid is `(1)/(3)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

A small sample of Uranium metal (0.119 gm) is heated to `900^(@) C` in air to give 0.135 gm of a dark oxide, `U_(x) O_(y)`. Then `[U = 238]`

2 Answers 5 Views

When x grams of steam at `100^(@)C` is mixed with y grams of ice at `0^(@)C`, we obtain `(x + y)` grams of water at `100^(@)C`. What is the ratio `y//

2 Answers 5 Views

An oleum sample labelled as `104.5%` in 10 g of this sample 90 mg water is added then which is/are correct for resulting solution.

2 Answers 9 Views

A chalk sample exactly 17.52 gram HCl for complete reaction with all `CaCO_(3)` present in it. If the chalk sample is 72% pure, the mass of sample tak

2 Answers 8 Views

A body of density d is counterpoised by Mg of weights of density `d_1` in air of density d. Then the true mass of the body is

2 Answers 4 Views

A water sample contains fMgSO What is . 68 mofCaSO4and60ppmo 4· . Mg(HC03 )2 , PP 1 ? (Atomic weights of calcmm, the hardness of the water sa~:s ctive

2 Answers 4 Views

A certain metal salt solution is electrolysed in series with a silver coulometer. The weights of silver ad the metal deposited are 0.5094 g and 0.2653

2 Answers 4 Views

Mole fraction of liquid A (M = 20) present with liquid B(M = 25) in a solution of A (l) and B (l) is 0.6, then weight of solution per 50 g of liquid B

2 Answers 4 Views

With a potentiometer, null points were obtained at 140 cm and 180 cm with cells of emf 1.1 volt and one of unknown value respectively. Calculate the u

2 Answers 5 Views

The energy of alpha particles emitted by `.^(210)Po` is 5.3 MeV. The half life of this alpha emitter is 138 days. (a) What mass of `.^(210)Po` is need

2 Answers 8 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B::C
Let the density of metal is p and density of liquid is `sigma`.
If V is the volume of sample then according to problem
`210 = Vrhog " "…….(i)`
`180 = V(rho-1)g " "……(ii)`
`120 = V(rho-sigma)g " "……..(iii)`
By solving (i),(ii) and (iii) we get `rho = 7` and `sigma = 3`.

5 views Answered 2023-02-05 15:29