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

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.

What is meant by atomic mass number ? Explain how the atomic number and mass number of carbon are 6 and 12 respectively.

A person adds 1.71 gram of sugar (C_12H_22O_11) in order to sweeten his tea. The number of carbon atoms added are ( molar mass of sugar = 342)

Read the following passage write the appropriate amount in the boxes and discuss. Govind, who is a dry land farmer from Shiralas has a 5 acre land. His family inclde his wife two children and his old mother. He borrowed one lakh twenty five thousand rupees from the bank for one year as agriculatral loan at 10 p.c.p.a . He cultivated soyabean in x acres and cotton and tur in y acres. He spent Rs. 10,000 on seeds. The expenses for fertilizers and pesticides for the soyabean crop was 2000x rupees and 4000x2 rupees were spent on wages and cultivation of land. He spent 8000 y rupees on fertilizers and pesticides and rupees 9000 y2 for wages and cultivation of land for the cotton and tur crops. Let us write the total expenditure on all the crops by using variables x and y. rupees. He harvested 5x2 quintals soyabean and sold it at Rs. 2800 per quintal. The cotton crop yield was 5/3y2 quintals which fetched Rs. 5000 per quintal. The tur crop yield was 4y quintals and was sold at Rs. 4000 per quintal. Let us write the total income in rupees that was obtained by selling the entire farm produce, with the help of an expression using variables x and y. square + square + square rupees