Current formula
H₂O
Score: 0
Problem: 1
Checks used: 0
Current step: Step 1
Molar masses solved: 0
Fast solves: 0
Enter your answers for Step 1, then click Check Step 1.
Reference tiles
Use these atomic masses while you work.
1) Count the atoms
How many atoms of each element are in the formula?
| Element | Your atom count |
|---|
Nothing checked yet.
2) Report the atomic weight
Write the atomic mass for each element in g/mol.
| Element | Your atomic mass (g/mol) |
|---|
Locked until Step 1 is correct.
3) Multiply
Find the product for each element.
| Element | Your result (g/mol) |
|---|
Locked until Step 2 is correct.
4) Add for the total molar mass
Add your Step 3 results. The sim will not show the addition for you. You can also try the total right away for double points.
No sum expression is revealed here. If you solve the total before checking Steps 1–3, a correct answer earns double points.
Locked until Step 3 is correct.