Answer : The new volume of the balloon is, 22.4 L
Explanation :
Charles' Law : It is defined as the volume of gas is directly proportional to the temperature of the gas at constant pressure and number of moles.
or,
where,
= initial volume of gas = 22.6 L
= final volume of gas = ?
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above formula, we get the final volume of the gas.
Therefore, the new volume of the balloon is, 22.4 L
Answer:
Following are the answer to this question:
Explanation:
In the given question an attachment file is missing, that is attached. please find the attached file, and the following are the description of the given points:
a. At 100 degrees in 100 mL 5 g is dissolved.
For, it required:
b. At 0 degrees 100 mL dissolve in 0.3 g.
So, the dissolve:
After refrigeration 0.12 g will still be dissolved.
c. After dissolving and freezing, precipitation can occur which would still be impure if the cooling is instantaneous. The added solvent was also too hard to recrystallize. The solvent was placed below its place of reservation.
d. Recovery percentage:
The melting point of acetanilide:
Found=109(medium)
Melting point error percentages:
C. seaborgium: atomic number 106, mass 266, neutrons 160
Explanation:
An atom is made up three fundamental particles:
- Protons are the positively charged particles in an atom
- Electrons are the negatively charged particles
- Neutrons carry no charges.
The mass number is the sum of protons and neutrons in an atom because they contribute to the mass of an atom.
The atomic number is the number of protons in an atom. For a neutral atom, it is the same as the number of electrons.
Number of neutrons = mass number - atomic number
For seaborgium,
Number of neutrons = 266 - 106 = 160
This is the only correct option given.
Learn more:
Mass number brainly.com/question/2597088
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We are given that the concentration of the KCl is 2 meq /
mL. Assuming that the ampule also has exactly this concentration, therefore:
amount of KCl in ampule = (2 meq / mL) * (20 mL)
amount of KCl in ampule = 40 meq
This amount of KCl is now inside a solution of 1 Liter (also
equivalent to 1000 mL), therefore the new concentration in the resulting
solution is:
new concentration = 40 meq / 1000 mL
new concentration = 0.04 meq / mL
Since 0.04 in decimal is 4% in percentage, therefore the
strength of the resulting solution is 4% KCl.