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

The Industrial Revolution, when machines began to assist in production, developed the capitalist economy because it allowed comp

Airida [17]

Answer:

True because it provides more autonomous systems

3 0

3 years ago

A stationary siren emits a sound of frequency 1000 hz and wavelength 0. 343 m. An observer who is moving toward the siren will m

madam [21]

Ummmmmmm I’m not sure just quizlet it. Trust me it helps me A lot

8 0

3 years ago

Read 2 more answers

Hallo. Come be weird with meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeedon’t you dare answer if your not weird:( kalakakumba out

slava [35]

i am hawk moth i will acumatize you

photo of me

7 0

3 years ago

Read 2 more answers

A book has a mass of 400g the surface of the book in contact

Brut [27]

Answer:

The pressure exerted on the table due to the book is 200 N/m².

Explanation:

The pressure exerted on the table due to the book is 200 N/m².

The given parameters;

mass of the book, m = 400 g = 0.4 kg

dimension of the table, = 0.10m x 0.20 m.

gravitational field strength g = 10 N/kg.

The area of the table is calculated as follows;

A = 0.1 x 0.2 = 0.02 m²

The pressure exerted on the table due to the book is calculated as follows; where;

F is the force of the book due to its weight

Thus, the pressure exerted on the table due to the book is 200 N/m².

8 0

2 years ago

Do you ever feel really afraid of failing. Do you think you have to be perfect all the time? If you do, someone like Sheila Jose

kherson [118]

Answer: Yes, I am cause you will never know what will happen when you are done falling . Sheila Josephs helps you inspires you . That's what psychologist do they talk to you the help you.

4 0

3 years ago