Write down the number of hydrogen and oxygen atoms of the following
H2O
3H2O
5H2O
Write down the number of carbon, hydrogen and oxygen atoms:
C6H12O6
2C6H12O6
10C6H12O6
Write down the number of molybdenum, oxygen and hydrogen atoms:
Mo(OH)4
3Mo(OH)4
5Mo(OH)4
Write the Number of atoms of each type in formula:
3Al2(CO3)3
4(NH4)3P
25NaCl
Thanks:)
Hey MAD 2 Hydrogen atoms + 1 oxygen atom = H2o
3H2O : 9 atoms
5H2O = 15 atoms
for second part
C6H12O6
Total atoms in 1 molecule = 6 + 12 + 6 = 24
2C6H12O6
6 carbon atoms, 12 helium atoms, and 6 oxygen atoms then you have 24 atoms times the 2 at the beginning making 48 atoms
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To determine the number of atoms in a chemical formula, you need to use the concept of subscripts.
In a chemical formula, the subscript indicates the number of atoms of that element present in the compound.
Let's go through each compound one by one and determine the number of atoms for each element:
1. H2O:
- Hydrogen (H): 2 atoms
- Oxygen (O): 1 atom
2. 3H2O:
- Hydrogen (H): 3 x 2 = 6 atoms (since there are 3 water molecules)
- Oxygen (O): 3 x 1 = 3 atoms
3. 5H2O:
- Hydrogen (H): 5 x 2 = 10 atoms
- Oxygen (O): 5 x 1 = 5 atoms
Next, let's move on to the next set of compounds:
1. C6H12O6:
- Carbon (C): 6 atoms
- Hydrogen (H): 12 atoms
- Oxygen (O): 6 atoms
2. 2C6H12O6:
- Carbon (C): 2 x 6 = 12 atoms
- Hydrogen (H): 2 x 12 = 24 atoms
- Oxygen (O): 2 x 6 = 12 atoms
3. 10C6H12O6:
- Carbon (C): 10 x 6 = 60 atoms
- Hydrogen (H): 10 x 12 = 120 atoms
- Oxygen (O): 10 x 6 = 60 atoms
Now, let's move on to the last set of compounds:
1. Mo(OH)4:
- Molybdenum (Mo): 1 atom
- Oxygen (O): 4 atoms
- Hydrogen (H): 4 atoms
2. 3Mo(OH)4:
- Molybdenum (Mo): 3 x 1 = 3 atoms
- Oxygen (O): 3 x 4 = 12 atoms
- Hydrogen (H): 3 x 4 = 12 atoms
3. 5Mo(OH)4:
- Molybdenum (Mo): 5 x 1 = 5 atoms
- Oxygen (O): 5 x 4 = 20 atoms
- Hydrogen (H): 5 x 4 = 20 atoms
Finally, let's calculate the number of atoms for the last set of compounds:
1. 3Al2(CO3)3:
- Aluminum (Al): 3 x 2 = 6 atoms
- Carbon (C): 3 x 3 = 9 atoms
- Oxygen (O): 3 x 3 x 3 = 27 atoms
2. 4(NH4)3P:
- Nitrogen (N): 4 x 3 = 12 atoms
- Hydrogen (H): 4 x 3 x 4 = 48 atoms
- Phosphorus (P): 1 atom
3. 25NaCl:
- Sodium (Na): 25 atoms
- Chlorine (Cl): 25 atoms
I hope this helps! Let me know if you have any more questions.