All categories

3 years ago

Determine the amount of energy required to boil 50 g of ethanol.

Chemistry

1 answer:

mars1129 [50]3 years ago

6 0

Answer:

42050 J.

Explanation:

Data obtained from the question:

Mass (M) of ethanol = 50g

Heat of vaporisation (ΔHv) of ethanol = 841 J/g

Heat (Q) =.?

The heat required to boil 50g of ethanol can be obtained as follow:

Q = MΔHv

Q = 50 x 841

Q = 42050 J.

Therefore, the heat required to boil 50g of ethanol is 42050 J.

You might be interested in

The word "atom" comes from the Greek word for "indivisible". In what way are atoms indivisible?

Alla [95]

Atoms arent indivisible. Atoms consist of protons, electrons, neutrons, & quarks & a whole bunch of subatomic particles.

7 0

3 years ago

Read 2 more answers

Why do larger gases such as Neon produce more color bands (line spectra) than smaller gases like Hydrogen?

LekaFEV [45]

Larger gases produces more spectral lines than the smaller gases because they have more orbitals in their atoms.
Hydrogen has only one orbital in which an electron orbits. At the excited state, that is, when the electron gains energy, the number of energy level it can transcend is very few. For larger elements, they have more orbitals and when excited, they can move from the ground state to other energy levels at which they produce various unique spectral lines.

7 0

3 years ago

Question 10

zepelin [54]

Because the ring is hollow

3 0

3 years ago

Predict how many H1 NMR signals (individual resonances, not counting splitting) are expected for the compound.

Lyrx [107]

Answer:

3 H1 NMR signals

Explanation:

NB: kindly check the diagram of the chemical compound in the attached picture.

This particular Question is based on the part of chemistry which is known as spectroscopy. Spectroscopy is used in the Determination or in identifying chemical compounds. H'NMR works on the principle of nuclear magnetic resonance.

In order to solve this question, one has to count the number of hydrogen in unique location. The diagram in the attached show how hydrogen is been counted.

The numbers of signals is the number of different chemical environments in which hydrogen atoms are located.

NB: signals is also the same as peak in H'NMR.

Hence, the number of H1 NMR signals in this chemical compound is 3.

3 0

3 years ago

If a hockey puck is made to slide along a straight line on a completely frictionless surface, which statement about the motion o

JulsSmile [24]

The hockey puck will continue in the same speed in a continues straight line

3 0

3 years ago

Read 2 more answers