Question
Mixture βAβ contains 80% acetone and rest 32 litres
water. Mixture βBβ contains 70 litres acetone and rest 50% water. When two mixtures are mixed, then find the ratio of acetone to water in the resultant mixture.Solution
Quantity of water in mixture βAβ = 32 litres Total quantity of mixture βAβ = 32/0.20 = 160 litres Therefore, quantity of acetone in mixture βAβ = 160 β 32 = 128 litres Quantity of acetone in mixture βBβ = 70 litres Total quantity of mixture βBβ = 70/0.50 = 140 litres Quantity of water in mixture βBβ = 140 β 70 = 70 litres Therefore, quantity of acetone in resultant mixture = 128 + 70 = 198 litres Quantity of water in resultant mixture = 70 + 32 = 102 litres Required ratio = 198 : 102 = 33:17
A 100 ΞΌF capacitor is charged to a voltage of 50V. How much energy is stored in the capacitor?
What is the unit of the refractive index?
The mass and energy equivalent to 1 a.m.u. respectively are -
Which type of mirror is used in car headlights?
The electric and magnetic fields of an electromagnetic wave are _____________
Which law states that the total current entering a junction is equal to the total current leaving the junction?
A solid non-conducting sphere of radius R carries a uniform volume charge density Ο. What is the ratio of electric field at r = R (surface) to that at ...
Compared to fresh Water, the freezing point of sea water is -
Water flows in a horizontal pipe of non-uniform area of cross-section at a pressure difference of 1.6 cm of mercury. If the velocity of water at the la...
The refractive index of glass is 1.5. What is the speed of light in glass?
(Speed of light in vacuum is 3.0 Γ108 m s-1)