Understanding Chemical Formulas
starstarstarstarstarstarstarstarstarstar
by Donald LaMarr
| 31 Questions
Note from the author:
Counting the number of atoms in a chemical formula
Calculate the individual and total number of atoms in each of the following chemical formulas.
Hint: Treat coefficients like the distributive property and subscripts like exponents.
1
0
NaCl (use this space to show any work)
2
1 pt
Na-
3
1 pt
Cl-
4
1 pt
Total number of atoms
5
0
4Al(C2H3O2)3 (use this space to show any work)
6
1 pt
Al-
7
1 pt
H-
8
1 pt
C-
9
1 pt
O-
10
1 pt
Total number of atoms
11
0
6H2SO4 (use this space to show any work)
12
1 pt
H-
13
1 pt
S-
14
1 pt
O-
15
1 pt
Total number of atoms
4Si(HCO3)4
16
1 pt
Si-
17
1 pt
H-
18
1 pt
C-
19
1 pt
O-
20
1 pt
Total number of atoms
2HNO3
21
1 pt
H-
22
1 pt
N-
23
1 pt
O-
24
1 pt
Total number of atoms
KMnO4
25
1 pt
K-
26
1 pt
Mn-
27
1 pt
O-
28
1 pt
Total number of atoms
8K2SO4
29
1 pt
K-
30
1 pt
S-
31
1 pt
O-
Add to my formatives list

Formative uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to the Terms of Service and Privacy Policy.