Sign in to your Google account to fill out this form
This form contains features which require sign in. Your identity will not be revealed.
Quiz: How to Determine Percent Composition from Mass Data
This quiz is based on the screencast: How to Determine Percent Composition from Mass Data
Students are allowed to use their screencast notes to help them answer these questions.
Why just O (Why not O₂)?
This is impossible, O always has to be O₂ no matter what
because the Oxygen is bonded to something else (in this case, Magnesium)
What is the mass of magnesium?
The mass of the total compound - The mass of Oxygen = The mass of Magnesium
What is a percent?
A part to whole ratio where the whole is 100
A part to part ratio where the whole is 100
A part to whole ratio where the whole is never the same and depends on specific cases
How can we figure out % by mass of an element?
By multiplying by the coefficient
it's the mass of that element divided by the mass of the compound multiplied by 100
What is the percent of oxygen?
Never submit passwords through Google Forms.
This content is neither created nor endorsed by Google. -
Terms of Service