What is the volume of 70.0 g of ether if density os 0.70 g/mL

Answers

Answer 1

Answer: $D = m / V$

$0.70 g/mL = (70.0g)/(V)$

$V = (m)/(D)$

$V = (70.0g)/(0.70g/mL)$

$V = 100 mL$

hope this helps!

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Condensation point AND freezing point of oxygen in C and F?

Answers

Answer:54.36 K (−218.79 °C; −361.82 °F)

Explanation:

How many grams are needed to form 33.6 L of carbon dioxide

Answers

It depends of the temperature and the pressure. If temperature and pressure are standard 1 mol forms 22.4 liter. So 33.6 liters form 33.6/22.4 = 1.5 mols.

Now calculate the molar mass of carbon dioxide: 12 g/mol + 2x16 g/mol = 44 g/mol

The mass of the 1.5 mols is 1.5mol * 44 g/mol = 66 g.

If a shell can hold a maximum of 32 electrons, what is the value of n?

Answers

In my textbook it says that the maximum number of electrons that can fit in any given shell is given by 2n². Which would mean 2 electrons could fit in the first shell, 8 could fit in the second shell, 18 in the third shell, and 32 in the fourth shell. However, I was previously taught that the maximum number of electrons in the first orbit is 2, 8 in the second orbit, 8 in the third shell, 18 in the fourth orbit, 18 in the fifth orbit, 32 in the sixth orbit. I am fairly sure that orbits and shells are the same thing.

Which of the following isotopes would most likely be unstable and therefore radioactive?helium-3
calcium-40
molybdenum-98
mercury-194

Answers

The "mercury-194" is a kind of isotope which is untastable and radioactive.

What is isotope?

Isotopes may be members of the very same element's family but also have variable counts of neutrons despite roughly the identical count of protons.

What is radioactive?

An unstable nucleus of an atom releases energy through radiation in a process known as radioactive decay.

Therefore, the "mercury-194" is a kind of isotope which is untastable and radioactive.

To know more about isotope and radioactive

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Answer: Mercury-194 is an unstable isotope and hence is radioactive.

Explanation: Mercury-194 is an isotope of mercury, having formula $_(80)^(194)\textrm{Hg}$

Number of protons in this isotope = 80

Number of neutrons in this isotope = 114

This isotope is radioactive in nature and under decay process by Electron Capture.

Electron capture reactions are the reactions in which a proton in a nucleus absorbs an electron and convert it into neutron. The resulting nucleus will have a decreased atomic number and same atomic mass.

Reaction for electron capture of mercury-194 follows:

$_(80)^(194)\textrm{Hg}+_(-1)^0\textrm{e}\rightarrow _(79)^(194)\textrm{Au}$

6 CO2 + 6 H2O + Energy--> C6H12O6 + 6 O2 is the chemical formula for:A: abiogenesis
B: Respiration
C: Photosynthesis
D: Homostasis

Answers

This would be the formula representing the process of C. Photosynthesis.

Answer:

C. photosynthesis

Explanation:

He statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. conservation of matter.
B. atomic disintegration.
(C.) conservation of energy.
D. definite proportions.

Answers

Law of C. conservation of energy states that energy can neither be created nor destroyed, but can be changed from one form to another (such as from potential energy to kinetic energy).

Hope this helps~

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