All categories

2 years ago

Convert 3.80 mol of KCI to grams?

Chemistry

1 answer:

vagabundo [1.1K]2 years ago

8 0

Answer:

283 grams KCl

Explanation:

To convert form moles to grams, you need to find the molar mass of your compound. The molar mass can be calculated using the individual molar masses of each element in the compound. These values can be found on the periodic table.

Molar Mass (K) = 39.098 g/mol

Molar Mass (Cl) = 35.453 g/mol

Molar Mass (KCl) = 39.098 g/mol + 35.453 g/mol

Molar Mass (KCl) = 74.551 g/mol

Now that you know the molar mass, you want to multiply it by the moles of KCl. This is possible because the molar mass is actually a ratio representing the relationship of grams and moles. In KCl, there are 74.551 grams of KCl for every 1 mole of KCl. When you are multiplying, make sure you set the ratio up in a way that allows for the units to cancel out and leave grams as your final answer.

3.80 moles KCl 74.551 g
----------------------- x ------------------- = 283 grams KCl
1 mole KCl

The final answer should have 3 sig figs because the value the problem gave (3.80 mol) also has 3 sig figs.

You might be interested in

When a mixture of iron powder and sulphur is heated it glows more brightly than that of iron filings and sulphur.Explain this ob

Bond [772]

Answer:

I don't know

Explanation:

mixture of iron powder and sulphur heated it glows because sulphur and iron are more reactive metals that they shine and sulphur can react with water produce fire it's write

3 0

2 years ago

Describe what happens when ionic and covalent (molecular) substances dissolve. Fill in the blanks using the options below:covale

Lena [83]

1. ionic compound , aqueous cations and aqueous anions

2. covalent compound aqueous covalent compound

Explanation:

1. A(n) ionic compound dissolves in water , H₂O(l), will produce aqueous cations and aqueous anions in solution.

When NaCl dissolves in water it will produce Na⁺ and Cl⁻ ions in solution

2. A(n) covalent compound  dissolves in water , H₂O(l), will produce aqueous covalent compound in solution.

When Ammonia (NH₃) dissolves in water it forms aqueous ammonia, NH₃(aq)

Organic compounds, like carbohydrates, proteins, nucleic acids, and lipids, are all good examples of covalent compounds.

3 0

3 years ago

What does the reaction rate say about a reaction?

miss Akunina [59]

Answer:

It shows the change in concentration of a reactant or product per unit of time, expressed as mol/(L · s)

Explanation:

The reaction rate is the speed at which a chemical reaction proceeds.

So if the reaction rate is the speed at which a chemical reaction happens/occurs, then the reaction rate will tell us about the concertation of the chemicals. It shows the change in concentration of a reactant or product per unit of time, expressed as mol/(L · s)

7 0

3 years ago

Tamara is studying the human digestive system in science class. A diagram similar to the one that follows appears in her text bo

grin007 [14]

Answer:

esophagus

Explanation:

just took the test

8 0

3 years ago

What does morality measure

allsm [11]

Morality represents a society's positive value orientation, providing a basis for the assessment of the appropriateness of social behavior. Moral behavior in our model is not subject to regional and cultural influences

6 0

2 years ago