Which of the following alkanes has a higher density than water?
Practice Questions
1 question
Q1
Which of the following alkanes has a higher density than water?
Ethane
Propane
Butane
Pentane
Butane has a higher density than water.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following alkanes has a higher density than water?
Solution: Butane has a higher density than water.
Steps: 6
Step 1: Understand that density is a measure of how much mass is in a given volume. Water has a density of 1 gram per cubic centimeter (g/cm³).
Step 2: Identify the alkanes you are comparing. Alkanes are hydrocarbons with the general formula CnH2n+2.
Step 3: Look up the densities of the alkanes you are considering. For example, butane has a density of about 0.573 g/cm³.
Step 4: Compare the density of butane to the density of water. Since 0.573 g/cm³ is less than 1 g/cm³, butane does not have a higher density than water.
Step 5: Check other alkanes if provided. For example, if you check octane, it has a density of about 0.703 g/cm³, which is still less than water.
Step 6: Conclude that none of the common alkanes have a higher density than water, but if you were to consider heavier alkanes, you might find some that do.
