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WorksheetsEmpirical & Molecular Formula
Total questions: 10
Worksheet time: 7mins
Do the diagrams have the same molecular formula?
Yes
No
Do the diagrams have the same empirical formula?
Yes
No
If black ball represents carbon (C) atom and white balls represent hydrogen (H) atoms. What is the molecular formula of the diagram shown?
CH
CH4
C4H
C4H4
If black ball represents carbon (C) atom and white balls represent hydrogen (H) atoms. What is the molecular formula of the diagram shown?
CH
CH4
C2H4
C4H4
Do the diagrams have the same molecular formula?
Yes
No
Do the diagrams have the same empirical formula?
Yes
No
The molecular and empirical formula of a compound are __________ the same.
always
sometimes
never
one and
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. What is the empirical formula of this compound?
C3H3Cl
CH6Cl3
CH3Cl3
CHCl3
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. What is its molar mass in g/mol?
124.42
121.39
119.37
74.51
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. If a compound which shares the same empirical formula as chloroform is known to have a molar mass of 223.53g/mol, what is the compound’s mole ratio with chloroform?
2
3
4
5
