Which value gives the number of particles in 1 mol of a substance?

Answers

Answer 1

Answer: The number of particles (molecules or atoms) is: 6.022 x 10²³ particles (atoms or molecules).

1 mol of H₂O has 6.022 x 10²³ molecules.
1 mol of Al has 6.022 x 10²³ atoms.

Answer 2

Answer:

Answer:

C on edge 2021

Related Questions

After being thoroughly stirred at 10.°C, which mixture is heterogenous?(1) 25.0 g of KCl and 100. g of H2O(2) 25.0 g of KNO3 and 100. g of H2O
(3) 25.0 g of NaCl and 100. g of H2O
(4) 25.0 g of NaNO3 and 100. g of H2O

Answers

The answer is (2) KNO3. This depends on the solubility of these four compounds at 10℃. For NaCl, it is 35.8 g, For NaNO3, 80.8 g. KCl, 31.2 g. KNO3, 21.9g. So only KNO3 is less than 25.0 g.

Answer:

Explanation:

Because if look at the Solubity curves you will notice other three doesn't go 25 grams. They start above the 25 grams.

What is true of valence electrons?a) They exist in the outer orbital.

b) they easily move from one orbital to another

c) they have difficulty moving from one orbital to another

d) they are always the lowest energy electrons of the atom

Answers

Answer:

They exist in the outter orbital

Explanation:

i think c may be your anwser but im not too sure :/ srry if u get it wrong!

The molar mass of blood sugar, C6H12O6 also known as glucose and dextrose is

Answers

The molar mass is calculated by looking up the relative atomic mass values on a periodic table. The relative atomic mass is a value without units that is calculated on a Carbon-12 scale.

By looking at the periodic table (values will be to 3 significant figures [2 for hydrogen though]):
Molar mass (M) of 1 mole of Carbon = 12.0 g/mol
Molar mass (M) of 1 mole of Hydrogen = 1.0 g/mol
Molar mass (M) of 1 mole of Oxygen = 16.0 g/mol

So the molar mass is essentially the relative atomic mass (RAM), but molar mass has a unit, but RAM doesn't (it is a ratio).

Given the formula is C6H12O6 (without putting the numbers as subscripts), we can calculate as follows:
M (C6H12O6) = (6 x 12.0) + (12 x 1.0) + (6 x 16.0)
= 72.0 + 12.0 + 96.0
= 180.0 g/mol

Hope it's right :D

Final answer:

The molar mass of glucose, also known as blood sugar and dextrose, is calculated by summing the respective molar masses of carbon, hydrogen, and oxygen in one molecule of glucose. It is approximately 180.16 g/mol.

Explanation:

The molar mass refers to the mass, in grams, of one mole (6.022 x 1023 molecules) of a substance. For glucose (C6H12O6), we calculate it by summing up the molar masses of individual elements, multiplying each by their respective number of atoms in one molecule of glucose.

The molecular masses of carbon (C), hydrogen (H), and oxygen (O) are approximately 12.01 g/mol, 1.008 g/mol, and 16.00 g/mol respectively. So the molar mass of glucose is calculated as follows: (6*12.01 g/mol) + (12*1.008 g/mol) + (6*16.00 g/mol) = 72.06 g/mol + 12.10 g/mol + 96.00 g/mol = 180.16 g/mol.

So, the molar mass of glucose, C6H12O6, also known as blood sugar and dextrose, is approximately 180.16 g/mol.

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During carbon fixation, what type of molecules are the carbon atoms in carbon dioxide rearranged into?

Answers

Answer: Organic molecules

Explanation:

During carbon fixation, the carbon atoms in carbon dioxide are rearranged into organic molecules such as glucose through a series of enzymatic reactions.

Final answer:

In carbon fixation, carbon atoms from CO2 are rearranged into three-carbon molecules or 3-carbon organic compounds. This happens in photosynthesis' Calvin cycle, facilitated by the enzyme RuBisCO.

Explanation:

During carbon fixation, the carbon atoms in carbon dioxide are rearranged into more complex molecules known as three-carbon molecules or 3-carbon organic compounds. This process occurs during the first stage of the Calvin cycle in photosynthesis. The enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) catalyzes the reaction between carbon dioxide (CO2) and ribulose-1,5-bisphosphate (RuBP) to create two molecules of 3-phosphoglycerate, a 3-carbon organic compound.

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What is the process of breaking down glycogen without the presence of oxygen?

Answers

Answer:

anaerobic glycolysis

In my knowledge, this would be called anaerobic respiration – anaerobic meaning without oxygen and the respiration process is through glycolysis, the breaking down of glucose to form (with generalisations) 2 ATP molecules and lactic acid (with probably some other bits and pieces). I thought this was a biology concept? :D

A radioactive isotope has a half-life of 2.5 years. Which fraction of the original mass remains unchanged after 10 years?

Answers

In ten years, four half-lives have occurred (10/2.5=4). After one half-life, 50% of the original 100% remains. After two half-lives, 50% of the remaining 50% remains (so 25% remains).
After three half-lives, 50% of the 25% remains, so 12.5% remains.
After four half-lives, 50% of the 12.5% remains, so 6.25% remains.
After four half-lives, 6.25% of the original mass remains unchanged. In fraction form that is 6.25/100

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