A)In your body the following reaction takes place:
C6H12O6 + nO2 ! mCO2 + 6H2O
What are the numbers n and m? and my answer was: n=6 and m=6, but I don't know what formula shall I use to workout question B
B) How many protons are present in 5 tonnes of carbon dioxide?
Is it mass*5 tonnes, whish will give me the protons?
each mole of CO2 (mass : 44 g) contains Avogadro's number of molecules
each molecule is one carbon (atomic # 6), and two oxygen (atomic # 8)
... looks like 22 protons per molecule
a tonne is 1000 kg
(5E6 / 44) * 6.02E23 * 22
Thanks Scott, I really appreciate your help
To determine the values of n and m in the given reaction, you need to understand the stoichiometry of the reaction. In this case, the balanced equation shows that every molecule of glucose (C6H12O6) reacts with n molecules of oxygen (O2) to produce m molecules of carbon dioxide (CO2) and 6 molecules of water (H2O).
From the equation, we can see that n molecules of O2 are needed to produce m molecules of CO2, which indicates that the ratio of O2 to CO2 is n:1. Similarly, for every molecule of glucose, 1 molecule of CO2 is produced. Therefore, the ratio of C6H12O6 to CO2 is 1:m.
Since the equation is balanced, we know that the number of carbon atoms, hydrogen atoms, and oxygen atoms must be equal on both sides. In C6H12O6, there are 6 carbon atoms, while in CO2, there is only 1 carbon atom. Therefore, to have an equal number of carbon atoms on both sides, the value of m must be 6.
Similarly, since there are 12 hydrogen atoms in C6H12O6 and none in CO2, the value of m (the coefficient of CO2) does not affect the number of hydrogen atoms. Thus, the value of n can be any number as long as it is an integer.
Now, moving on to question B:
To determine the number of protons present in 5 tonnes of carbon dioxide, you cannot simply multiply the mass by 5 tonnes as you mentioned. Mass is related to the amount of a substance, but it does not directly provide information about the number of protons in that substance.
To calculate the number of protons, you need to consider the atomic structure of carbon dioxide (CO2). Carbon dioxide consists of one carbon atom and two oxygen atoms. The atomic number of carbon is 6, which means it has 6 protons. Oxygen has an atomic number of 8, indicating it has 8 protons.
To find the total number of protons in 5 tonnes of carbon dioxide, you need to perform the following steps:
1. Determine the molar mass of carbon dioxide (CO2). The molar mass of CO2 is calculated by summing the atomic masses of carbon and oxygen. The atomic mass of carbon is approximately 12.01 g/mol, while the atomic mass of oxygen is approximately 16.00 g/mol.
Molar mass of CO2 = (12.01 g/mol) + 2(16.00 g/mol)
2. Convert the mass of CO2 from tonnes to grams. Since 1 tonne is equal to 1,000,000 grams,
Mass of CO2 = 5 tonnes * 1,000,000 g/tonne
3. Calculate the number of moles of CO2 using the formula:
Moles of CO2 = Mass of CO2 / Molar mass of CO2
4. Finally, multiply the number of moles of CO2 by the Avogadro's number (6.022 x 10^23) to find the number of molecules of CO2, and then multiply it by the number of carbon atoms (6) to get the number of protons.
Number of protons = (Number of moles of CO2) x (Avogadro's number) x (Number of carbon atoms)
Remember to perform the calculations using the given values for the molar mass of CO2 and the mass of CO2 to find the exact number of protons in 5 tonnes of carbon dioxide.