a compound has an empirical formula of C2H303. if its molar mass is 300.20 g, what is its molecular formula?

Answers

Answer 1

Answer: 2:3:3 is the correct answer

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A 30.00 mL solution of 0.100M benzoic acid, a monoprotic acid, is titrated with 0.100M NaOH. The Ka is 6.3x10^-5. Determine the pH of the solution after the volumes of NaOH given were added. a. 0ml b. 10.00ml c. 30.00ml d. 40.00ml
A 134.0 g sample of an unknown metal is heated to 91.0⁰C and then placed in 125 g (125 mL) of water at 25.0⁰C. The final temperature of the water is measured at 31.0⁰C. Calculate the specific heat capacity of the unknown metal.
How would a solution that is labeled 5.0 molar be similar to one labeled 5.0 molal?
What is true about Carbon-14 and Carbon-12?a. The mass of the Carbon-14 sample is less than the Carbon-12 sample, but the reactivity of both samples was the same. b. The mass of the Carbon-14 sample is greater than the Carbon-12 sample, but the reactivity of both samples was the same . c. The reactivity of the Carbon-14 sample is less than the Carbon-12 sample, but the mass of both samples was the same. d. The reactivity of the Carbon-14 sample is greater than the Carbon-12 sample, but the mass of both samples was the same.
1. The science that deals with heredity and the factors affecting the transmission of the characteristics is 2. The trait that is usually hidden and will just come out on the second generation is 3. The appearance of the offspring is referred to as 4. The genetic make-up of the genes of the offspring is 5. Having two identical alleles of a particular gene or genes is called 6. The father of Science of Genetic is 7. It is the trait that is being expressed in an organism. 8. The extent to which something is probable is 9. The offspring of two plants/animals of different species or varieties is called 10. It is the number of times that the genotype would appear in an offspring after a test cross is 11. The relative number of offspring manifesting a particular trait or a combination of traits. 12. Having two different alleles of a particular gene or genes is

What kind of reaction occurs when a molecule of glucose reacts with oxygen to give carbon dioxide and water?A. an exothermic reaction

B. an endothermic reaction

C. a synthesis reaction

D. an irreversible reaction

Answers

A) Exothermic reaction. Exothermic reactions occur when energy or a new product is being releases(gas, energy, heat)

it is a i made a 100 on plato

What happens to the average kinetic energy of the water molecules in your body when you have a fever?

Answers

When you have a fever, the average kinetic energy of the water molecules in your body increases because the molecule's speed increases.

What is kinetic energy?

In physics, kinetic energy is the energy that an object has as a result of motion. It is defined as the amount of effort required to move a mass-determined body from rest to the specified velocity.

Unless the body's speedchanges, the kinetic energy gained during acceleration is retained.

Kinetic energy is the energy that an object has as a result of motion. To accelerate an object, a force must be applied to it.

We must exert effort in order to use force. When the work is completed, energy is transferred to the item, which moves at a new, constant speed.

To learn more kinetic energy, refer to:

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the speed of the molecule increses

Which element is least likely to undergo a chemical reactionA) lithium
B) carbon
C) flourine
D) neon
and can you give me a explanation with the answer you chose

Answers

The correct option is D.
Elements undergo chemical reactions because they are not stable and they want to become stable, that is they want to attain octet form. To attain octet form, an atom of element must have eight electrons in its outermost shell. Thus, elements undergo various types of chemical bonding in order to have 8 electrons in their outermost shells.
Neon has atomic number of 10 and its electronic configuration is 2,8. This means that, neon already has 8 electrons in its outermost shell and so does not need to form any chemical bond with any other element again, it is already stable. This is why, neon is the least likely to undergo chemical reaction and this is also the reason whey the element is chemically inert.
The other elements given in the option do not have 8 electrons in their outermost shell, so they will be quite willing to undergo chemical reactions in order to become stable.

d neon is the element that is least likely to undergo a chemical reaction

1. A tuning fork has a frequency of 280 hertz, and the wavelength of the sound produced is 1.5 meters. Calculate the velocity of the wave. - Answer:
2. A wave is moving toward shore with a velocity of 5.0 m/s. If its frequency is 2.5 hertz, what is the wavelength?
- Answer:
3. A jump rope is shaken producing a wave with a wavelength of 0.5 m. with the crest of the wave passing a certain point 7 times per second. What is the velocity of the wave?
- Answer:
4. The lowest pitch that the average human can hear has a frequency of 20.0 Hz. If sound with this frequency travels through air with a speed of 331 m/s, what is its wavelength?
- Answer:
5. A microwave has a frequency of 4,255 Hz. and a wavelength of 0.05 m. What is the microwave’s velocity?
- Answer:
6. A sound wave travels with a velocity of 460 m/s and has a frequency of 820 Hz. What is its wavelength?
- Answer:
7. A wave at sea travels with a velocity of 32 m/s. If it has a wavelength of 8 m. what is its frequency?
- Answer:
8. What is the frequency of a wave that has a velocity of 21.3 m/s and a wavelength of 7.8 m?
- Answer:

Answers

Based on the calculation, the velocity of this wave is equal to 420 m/s.

Given the following data:

Frequency of turning fork = 280 hertz.

Wavelength of sound produced = 1.5 meters.

How to calculate the velocity of a wave?

Mathematically, the velocity of a wave is calculated by using this formula:

V = λF

Where:

F is the frequency of a wave.

V is the velocity of a wave.

λ is the wavelength of a wave.

Substituting the given parameters into the formula, we have;

V = 1.5 × 280

V = 420 m/s.

Note: You should use the above formula to solve the other questions.

Read more on frequency here: brainly.com/question/19250621

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velocity = frequency x wavelength. 1) v = 280 x 1.5 = 420m/s 2) w = v / f = 5 / 2.5 = 2m

Compared to a 0.1 M aqueous solution of NaCl, a 0.8 M aqueous solution of NaCl has a(1) higher boiling point and a higher freezing point
(2) higher boiling point and a lower freezing point
(3) lower boiling point and a higher freezing point
(4) lower boiling point and a lower freezing point

Answers

Answer 2, because when you add salt to something, it cools faster (ex. When you add salt to an ice chest so that it stays cold) and it takes longer to boil (ex. When you boil salt out of ocean water so that its safe to drink) therefore, the more NaCl in the solution, the more it will exibit these properties

If 21.3 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 297 kelvin and 1.40 atmospheres?

Answers

Hope it cleared your doubt :)

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True or false: Chlorine treatment is effective in removing Cryptosporidium from water.

What is the half-life of a radioisotope if 25.0 grams of an original 200.-gram sample of the isotope remains unchanged after 11.46 days?(1) 2.87 d (3) 11.46 d(2) 3.82 d (4) 34.38 d