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o-na [289]
3 years ago
14

The value of ΔH° for the reaction below is -6535 kJ. ________ kJ of heat are released in the combustion of 16.0 g of C6H6 (l)?

Chemistry
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer:

the value of H° is below -6535 kj. +6H2O

Explanation:

6H2O answer solved

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A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 8.10kg of water at 33.9 degree
lions [1.4K]

Answer:

The new temperature of the water bath 32.0°C.

Explanation:

Mass of water in water bath ,m= 8.10 kg = 8100 g ( 1kg = 1000g)

Initial temperature of the water = T_1=33.9^oC=33.9+273K=306.9 K

Final temperature of the water = T_2

Specific heat capacity of water under these conditions =  c = 4.18 J/gK

Amount of energy lost by water = -Q = -69.0 kJ = -69.0 × 1000 J

( 1kJ=1000 J)

Q=m\times c\times \Delta T=m\times c\times (T_2-T_1)

-69.0\times 1000 J=8100 g\times 4.18 J/g K\times (T_2-306.9 K)

-69,000.0 J=8100 g\times 4.18 J/g K\times (T_2-306.9 K)

T_2=304.86 K=304.86 -273^oC=31.86^oC\approx 32.0^oC

The new temperature of the water bath 32.0°C.

5 0
3 years ago
Why is carbon monoxide especially dangerous?
mash [69]
Carbon monoxide reacts with hemoglobin of the blood to form carboxyhemoglobin.  The absorption of oxygen worsens, oxygen starvation develops. At a lethal dose, death occurs within 20 days.
4 0
3 years ago
Week 4 learning task 1 science 4th quarter​
cestrela7 [59]

Answer:

what???

Explanation:

what??????????

8 0
3 years ago
If you move an object from the base of a mountain to the top of the mountain what happens to its mass and weight
sdas [7]

Answer:

nothing

Explanation:

aslong as nothing falls off fhen the mass and weight wont change

5 0
4 years ago
The atomic mass of gold is 197 g/mole, and the density of gold is 19.3 g/cm3. using this information along with the measured val
olganol [36]
The speed of sound is given by the formula
Speed of sound = square root (Young's Modulus/density)
Young's modulus for gold = 78 GPa which is 7.8 * 10^10 Pa
Speed of sound = (7.8 * 10^10 / 19.3 ) = sqrt (4.04 * 10^9 )
Speed of sound = 6.36 * 10^4 m/s <<<=== answer.
6 0
3 years ago
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