Answer: The specific heat of the Al is .
Explanation:
As we know that,
where,
= mass of water = 87.4 g
= mass of Al metal = 6.7797 g
= final temperature =
= temperature of water =
= temperature of Al metal =
= specific heat of water =
= specific heat of Al metal = ?
Now put all the given values in equation (1), we get
Therefore, the specific heat of the Al is .
Higher and lower temperatures
Answer:
C₄H₁₂ + 7O₂ --> 4CO₂ + 6H₂O
Explanation:
Organic molecules react with O2 to create water and CO2 in combustion processes. C4H12 is an organic molecule that combines with O2 to create water and CO2 as shown in the reactions.
As a result, this is the sole reaction that obeys the general combustion equation.
First, lets find the pOH
pOH=-log[OH] ----> pOH=-log[1x10^-12] ----->pOH=12
Now we can find the pH
14-12=2
Now we can use the pH=-log[H3O] to find the hydrogen ion concentration
2=-log[H3O] ------>[H3O]=1.0 x 10^-2