All categories

3 years ago

Determine the formula weight of ca(no₃)₂. provide an answer to two decimal places.

SAT

1 answer:

Ronch [10]3 years ago

5 0

The formula weight of $Ca(NO_3)_2$ is equal to 136.02 g/mol.

The formula weight of a chemical compound is calculated by adding the atomic masses of each chemical element contained in the compound, while multiplying them by the number of atoms respectively.

From the periodic table, the atomic mass of each chemical element is:

Carbon = 12.0107 u

Nitrogen = 14.0067 u

Oxygen = 15.999 u

Formula weight of $Ca(NO_3)_2$ = $12.0107 + [14.0067+ (15.999 \times3)]\times 2$

$F = 12.0107 + [14.0067+ 47.997] \times 2\\\\F = 12.0107 + 124.0074$

F = 136.02 g/mol.

You might be interested in

In the first sentence of the passage, the clause set off by dashes ("she adopted. . . Sell") serves primarily to explain.

Artemon [7]

The clause set off by dashes in; ("she adopted. . . Sell") serves primarily to explain the methodology.

<h3>Completing Sentences</h3>

From the context of the first paragraph, it follows that the clause in discuss indicates that the description offered by the clause is regarding sales methodology adopted.

On this note, the clause set off by dashes describes the methodology and technique adopted to sell.

Read more on completing sentences;

brainly.com/question/1962347

7 0

3 years ago

¿Necesitas un punto porque puedo darte algunos si lo necesitas?

erastova [34]

Answer

muchas gracias

Explanation:

5 0

3 years ago

(ACT) How do you tell when questions are testing you on subject verb agreement on the english section vs other concepts?

Sav [38]

Answer:

On the ACT, you can often figure out what's being tested based on the underlined phrase and the answer choices. If you see that there are singular and plural forms of the same verb in the answer choices, determine if there's an error in subject-verb agreement.4 June 2015

Explanation:

5 0

3 years ago

There were 33,300 fatalities in 2015. How many deaths is that per hour ?

mojhsa [17]

Hi!

So for this problem you need to know how that there are 8,760 hours in a year. If we're trying to find how many deaths there were per hour, you'd need to divide 33,300 by 8760 to find out.

33,300/8760=3.80136986301

This means there were roughly 3.8 deaths per hour.

Hope this helps :)

7 0

3 years ago

gtnhenbr [62]

Answer:

^^^^^^^^^^^^^^^^^^^

Explanation:

7 0

3 years ago