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just olya [345]
3 years ago
11

Calculate the volume of this regular solid.

Chemistry
2 answers:
nataly862011 [7]3 years ago
7 0

Answer:2,144.7

Explanation:

Komok [63]3 years ago
7 0

Answer : The volume of sphere is 2143.6cm^3

Explanation :

To calculate the volume of sphere, we use the formula:

V=\frac{4}{3}\pi r^3 .....(1)

where,

r = radius of sphere

Given :

radius of sphere = 8 cm

Now put all the given values in the above formula (1), we get:

V=\frac{4}{3}\times 3.14\times (8cm)^3

V=2143.6cm^3

Hence, the volume of sphere is 2143.6cm^3

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T h e a s w e r i s d
8 0
3 years ago
a sample of helium occupies a volume of 101.2 mL at a pressure of 790 mmHg. at what pressure would the volume be 120 mL?
AveGali [126]

Answer : The final pressure will be, 666.2 mmHg

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure = 790 mmHg

P_2 = final pressure = ?

V_1 = initial volume = 101.2 mL

V_2 = final volume = 120 mL

Now put all the given values in the above equation, we get:

790mmHg\times 101.2mL=P_2\times 120mL

P_2=666.2mmHg

Therefore, the final pressure will be, 666.2 mmHg

6 0
3 years ago
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bekas [8.4K]

Answer:

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Explanation:

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5 0
3 years ago
Differentiate between sol,aerosol and solid soluti​
aalyn [17]

Answer:

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6 0
3 years ago
18. Which statement about photosynthesis is FALSE?
joja [24]
<h3>your query : </h3>

Which statement about photosynthesis is FALSE?

Answer:

b. Oxygen is needed as a reactant to produce

glucose is the incorrect statement here

Explanation:

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and traps sunlight by Green pigments known as chlorophyll and stores these energy in bonds of glucose molecules

so ,

after this reaction glucose and oxygen is formed as products

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3 years ago
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