Multiple Choice
A molecular compound contains 92.3 % carbon and 7.7 % hydrogen by mass.If 0.142 mol of the compound weighs 11.08 g,what is its molecular formula?
A) C8H8
B) C8H10
C) C4H8
D) C6H6
E) CH
Correct Answer:
Verified
Correct Answer:
Verified
Q113: Sodium cyclamate,C<sub>6</sub>H<sub>11</sub>NHSO<sub>3</sub>Na,was used at one time as
Q114: In 1928,1.0 g of rhenium,Re,was isolated from
Q115: A 4.957 g sample of a hydrocarbon
Q116: The formula mass of aluminum oxalate,Al<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>3</sub>,is<br>A)143 amu.<br>B)318
Q117: A 1.74 g sample of an element
Q119: An organic compound that has the empirical
Q120: Ammonia,NH<sub>3</sub>,and oxygen can be reacted together in
Q121: A hydrocarbon,subjected to elemental analysis,was found to
Q122: Pure copper may be produced by the
Q123: A given hydrocarbon is burned in the