CHEMISTRY HIGH SCHOOL

Find the molar mass of vitamin A (C20H30O).

Answers

Answer 1
Answer: Just add up the molar masses of each element.

Molar mass of C:  12.011 g/mol
The equation says C20, which means there are 20 carbon atoms in each molecule of Vitamin A.  So, we multiply 12.011 by 20 to get 240.22 g/mol carbon.

Molar mass of H:  1.0079 g/mol
The equation says C30, which means there are 30 hydrogen atoms in each molecule of Vitamin A. So, we multiply 1.0079 by 30 to get 30.237 g/mol hydrogen.

Molar mass of O: 15.999 g/mol
The equation says O without a number, which means there is only one oxygen atom in each molecule of Vitamin A.  So, we leave O at 15.999 g/mol.

Then, just add it up:
240.22 g/mol C + 30.237 g/mol H + 15.999 g/mol O = 286.456 g/mol C20H30O

So, the molar mass of Vitamin A, C20H30O, is approximately 286.5 g/mol.

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All atoms of the same element have the same ____.

Answers

Answer:

The correct answer is protons.

Explanation:

Hello! Let's solve this!

All atoms of the same element have the same number of protons. The isotopes of an element are chemical species that change the number of neutrons but not that of protons.

Then the different atoms of the same element differ in their protons.

The correct answer is protons.

All atoms of the same element have the same number of protons.

Protons are subatomic particles that are found within the nucleus of an atom. They have a positive electrical charge, which is equal in magnitude but opposite in sign to the negative charge of electrons. Protons are one of the three main types of particles found in atoms, along with neutrons and electrons.

The number of protons in an atom determines its atomic number and defines the element. For example, an atom with one proton is hydrogen (H), while an atom with six protons is carbon (C).

Learn more about protons, here:

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According to the Arrhenius theory a substance that yields hydrogen ions as the only ion in an aqueous solution is

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According to the Arrhenius theory a substance that yields hydrogen ions as the only ion in an aqueous solution is Acid.

What are acids?

Acids are those substances which are having pH range from 0 to 7.

According to the Arrhenius theory of acid and base, acids are those compounds which donate H⁺ ion or proton in the aqueous medium and bases are those substances which donate OH⁻ ion in the aqueous medium.

Example of Arrhenius acids are HCl, CH₃COOH, HNO₃, etc.

Hence, those substance which yields H⁺ ions is acids.

To know more about acids, visit the below link:

brainly.com/question/25148363
According to Arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. Further, acid and base reacts to form salt and water.
Consider following example.
HCl   +     H2O        →      Cl-         +      H3O+
here, HCl has donated a proton, hence it is an acid.
Now consider following reactionHCl     +      NaOH           ↔     NaCl      +        H2O
in this reaction, HCl donates proton, hence it is acid. On other hand, NaOH donates hydroxyl ion (i.e. OH-), hence it is a base.  

In every balanced chemical equation each side of the equation has the same number of

Answers

In a balanced chemical equation each side has the same number of ATOMS of the reactants.

For example(This is random)

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I still have 2 Carbon and 2 Oxygen atoms after the reaction.

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Answers

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