Question

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 brain ly

Answer 1

Answer:

hiiii mate here is ur answer

Answer: The number of moles of carbon is

Answer: The number of moles of carbon is Explanation:

Answer: The number of moles of carbon is Explanation:To calculate the number of moles, we use the equation:

Answer: The number of moles of carbon is Explanation:To calculate the number of moles, we use the equation:  

Answer: The number of moles of carbon is Explanation:To calculate the number of moles, we use the equation:  Given mass of carbon = 5 mg = 0.005 g   (Conversion factor: 1g = 1000 mg)

Answer: The number of moles of carbon is Explanation:To calculate the number of moles, we use the equation:  Given mass of carbon = 5 mg = 0.005 g   (Conversion factor: 1g = 1000 mg)Molar mass of carbon = 12 g/mol

Answer: The number of moles of carbon is Explanation:To calculate the number of moles, we use the equation:  Given mass of carbon = 5 mg = 0.005 g   (Conversion factor: 1g = 1000 mg)Molar mass of carbon = 12 g/molPutting values in above equation, we get:

Hence, the number of moles of carbon is 4.166\times 10^{-4}mol

hope its help full