Home
Class 11
CHEMISTRY
A mother cell disintegrate into sixty id...

`A` mother cell disintegrate into sixty identical cells and each daughter cell further disintegrate into `24` smaller cells. The smallest cells are uniform cylindrical in shape with diameter of `120 Å` and each cell is `6000 Å` long. Determine molar mass of the mother cell if density of the smallest cell is `1.12 g//cm^(3)` :

Text Solution

Verified by Experts

The correct Answer is:
`6.6 xx 10^(10)g`
Volume of smallest cell `pir^(2)|=pi(60xx10^(-8)cm)^(2)`
`(6000xx10^(-8)cm) = 6.785xx10^(-17)cm^(3)`
mass of one smallest cell `=7.6xx10^(17) g`
implies Molar mass of mother cell `=7.6xx10^(-17)xx24xx60xx6.023xx10^(23)=6.6xx10^(10)"amu"`
Promotional Banner

Similar Questions

Explore conceptually related problems

A uniform rope of mass M=0.1kg and length L=10m hangs from the celling. [g=10m//s^(2)] :-

A battery consist of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The tem1inals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n ?

A metallic element exists as a cubic lattice. Each edge of the unit cell is 2.88 Å . The density of the metal is 7.20 g cm^(-3) . How many unit cells there will be in 100g of the metal?

Four identical cells each of emf 2V, are joined in parallel providing supply of current to external circuit consisting of two 15 Omega resistors joined in parallel. The terminal voltage of the cells ae read by an ideal voltmeter is 1.6V. Calculate the internal resistance of each cell.

The n rows each containinig m cells in series are joined parallel. Maximum current is taken from this combination across jan external resistance of 3 Omega resistance. If the total number of cells used are 24 and internal resistance of each cell is 0.5 Omega then

At room temperature, pollonium crystallizes in a primitive cubic unit cell. If a = 3.36 Å, calculate the theoretical density of pollonium, its atomic mass is 209 g mol^(-1) .

show a 2.0V potentiometer used for the determination of internal resistance of a 1.5V cell. The balance point of the cell in open circuit is 76.3 cm. When a resistor of 9.5Omega is used in the external circuit of the cell, the balance point shifts to 64.8 cm length of the potentiometer wire. Determine the internal resistance of the cell.