3 years ago

Brainiest plsss helpp

Chemistry

2 answers:

djyliett [7]3 years ago

8 0

Answer:

b 13kg/m³ is the answer to this question

Marina86 [1]3 years ago

6 0

Answer:

A) 19320 kg/m^3

Explanation:

hope this helps and please give me brainiest if i get it correct or if you want? i would be happy if you did :D

You might be interested in

A water bottle has a mass of 14.0g. Given a density of 1.38g/cm^3, what is the volume of the plastic used to make the water bott

Kipish [7]

Answer:

$\boxed{\sf Volume \ of \ plastic \ used = 10.14 \ cm^3}$

Given:

Mass = 14.0 g

Density ( $\rho$ ) = 1.38 g/cm³

To Find:

Volume (V)of the plastic used to make water bottle

Explanation:

Formula:

$\boxed{ \bold{Density \ (\rho) = \frac{Mass \ (m)}{Volume \ (V)}}}$

Substituting value of m & density in the formula:

$\sf \implies 1.38 = \frac{14.0}{V} \\ \\ \sf \implies V = \frac{14.0}{1.38} \\ \\ \sf \implies V = 10.14 \ cm^3$

$\therefore$

Volume of the plastic used to make water bottle = 10.14 cm³

6 0

3 years ago

Tooth enamel is ca5(po4)3(oh). calculate the percent composition of the elements present.

Mama L [17]

We shall find the molar mass first.
Ca5(PO4)3(OH) = (40 * 5) + 3 (31 + 4(16)) + 16 + 1 = 200 + 285 + 17 = 485 + 17 = 502.
Percent of Calcium = 200/ 502 * 100 = 39.8%
Percent of Phosphorus = 91/502 * 100 = 18.1%
Percent of Hydrogen = 1/502 * 100 = 0.19%
Percent of Oxygen = 100 - (39.8 + 18.1 + 0.19) = 41.91%

8 0

3 years ago

Read 2 more answers

How many atoms are there in 23g of Na? How would I attempt this question. Thanks

Pavlova-9 [17]

Avodagros number i.e. 6.023 ×10^23

4 0

3 years ago

Read 2 more answers

What is the structural formula of propene<br>

Sladkaya [172]

Explanation: