Need a little help with chemistry:) *if you don’t know don’t put anything*
2 answers:
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Yes that is true.
Water:
Carbon dioxide:
Both have O
Water:
Carbon dioxide:
Both have O
Explanation:
It is known that heat (Q) required to change the phase of a given sample of mass m will be as follows.
........ (1)
where, = latent heat of fusion
Similarly, = mL_{v}[/tex] ....... (2)
where, = latent heat of vaporization
As it is known that value of latent heat of fusion of water is 334 J/g and latent heat of vaporization of water is 2260 J/g.
Hence, equating both the equations as follows.
=
=
=
= 54.13 g
Hence, we can conclude that 54.13 grams of ice will melt.
Answer:
32.6 %
Explanation:
Given data
- Mass of sucrose (solute): 22.8 grams
- Mass of water (solvent): 47.1 grams
Step 1: Calculate the mass of the solution
The mass of the solution is equal to the sum of the mass of the solute and the mass of the solvent.
m(solution) = m(solute) + m(solvent)
m(solution) = 22.8 g + 47.1 g
m(solution) = 69.9 g
Step 2: Calculate the percent-by-mass of sucrose in the solution
We will use the following expression.