A student used a carbon pencil to write his homework. The mass of this was found to be 5 mg. With the help of this calculate.
The number of moles of cqarbon in his homework writing.

A student used a carbon pencil to write his homework . The mass of this was found to be 5 mg. With the help of this calculate The number of moles of carbon in his home work writing.

A student used a carbon pencil to write his homework . The mass of this was found to be 5 mg. With the help of this calculate The number of carbon atoms in 12mg of his homework writing.

A student used a carbon pencil to write his homework. The mass of this was found to be 6 mg. With the help of this calculate. The number of carbon atoms in 12 mg of his homework writting

Calculate the number of moles in the following: Mass of 3.5 g of hydrogen

Student is to answer 10 out of 13 question in an examination such that must choose at least 4 from first 5 question. The number of choices available to his is

Yamini and Fatima, two students of class X of a school, together contributed ₹1500 towards the Prime Minister's Relief Fund to help the flood victims. Write a linear equation using two variables which satisfies the data.

A student forgot to add the reaction mixture to the round bottom flask at 27^@C but insteated he//she placed the flask on the flame. After a lapse of time he realized his mistake, and using a pyrometer he found the temperature of the flask was 477^@C Whatt fracion of air would have been expelled out?