All categories

1 year ago

How many grams are in 4 5 moles of sodium fluoride naf

Chemistry

1 answer:

nekit [7.7K]1 year ago

3 0

There are 618.68 g in 4.5 moles of NaF.

The total number of moles of any substance equals the ratio of its given mass in a chemical reaction to the mass of one mole or molar mass of that substance.

It is known that one mole of NaF or molar mass of NaF is 41.98 g/mol.

Given that number of moles is 4.5 moles.

Therefore, calculate the mass of NaF in grams as follows.

No. of moles = Given mass / Molar mass

mass in grams = No. of moles × Molar mass

= 4.5moles × 41.98 g/mol

= 188.91 g

Hence, we can conclude that there are 188.91 g in 4.5 moles of NaF.

Learn more about NaF from the link given below.

brainly.com/question/21321048

#SPJ4

You might be interested in

Examine the nuclear reaction: 1 1 H+ 1 0 n -> 2 1 H.

Lera25 [3.4K]

1) Conversion of an isotope one chemical element or an isotope into another chemical element is called as nuclear transmutation.

2) In a nuclear transmutation reactions can be achieved either due to radioactive decay or due to nuclear reactions.

3) In this technique, it is possible to convert a stable element into radioactive atom by bombarding in with high speed particles. The initial stable nuclei is referred as parent nuclei, the fast moving particle is referred as projectile while new element which is formed is called as daughter element.

4) In the present reaction:
1 1 H+ 1 0 n -> 2 1 H
1 1H is a parent nuclei which is bombarded with the fast moving projectile
(1 0 n) to generate a new daughter nuclei (2 1H).

6 0

4 years ago

7. A. How many moles of Calcium hydroxide (CaOH2) are needed to completely react with 14.5 mol of Phosphoric acid (H3PO4)?

Artyom0805 [142]

Answer:

moles of calcium hydroxide= 21.75 mol

a) 43.5 mol

b) 7.25 mol

Explanation:

Please see the attached picture for the full solution.

6 0

3 years ago

Van dar waals are the dominant molecular force in the sodium chloride.

Vedmedyk [2.9K]

Answer:

Recall the two conceptual steps necessary to dissolve a solute and form a solution

Key Points

There are two conceptual steps to form a solution, each corresponding to one of the two opposing forces that dictate solubility.

The first conceptual step is dissolution, which corresponds to the force of the solvent-solvent and solute-solute intermolecular attractions that needs to be broken down.

The second conceptual step is solvation, which corresponds to the force of the solute-solvent intermolecular attraction that needs to be formed in order to form a solution.

Many intermolecular forces can contribute to solvation, including hydrogen bonding, dipole-dipole forces, Van Der Waals forces, and ion-dipole interactions.

Term

intermolecular forcesattractive and repulsive forces between molecules

The strength of the intermolecular forces between solutes and solvents determines the solubility of a given solute in a given solvent. In order to form a solution, the solute must be surrounded, or solvated, by the solvent. Solutes successfully dissolve into solvents when solute-solvent bonds are stronger than either solute-solute bonds or solvent-solvent bonds.

Qualitatively, one can determine the solubility of a solute in a solvent by using the rule “like dissolves like”. In general, solutes whose polarity matches that of the solvent will generally be soluble. For example, table salt (NaCl) dissolves easily into water (H2O) because both molecules are polar.

Intermolecular Forces and Their Importance in Solution Formation

There are two conceptual steps to form a solution, each corresponding to one of the two opposing forces that dictate solubility. If the solute is a solid or liquid, it must first be dispersed — that is, its molecular units must be pulled apart. This requires energy, and so this step always works against solution formation (always endothermic, or requires that energy be put into the system).

#pa follow and heart po para sa iba pang answer at pa brainlest answer na den

7 0

3 years ago

Earth

Juliette [100K]

Full moon I’m pretty sure... good luck!

3 0

3 years ago

Which part of the blood is correctly paired with its function

iogann1982 [59]

Red blood cells is correct

6 0

4 years ago