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Illusion [34]
3 years ago
7

A sample of helium gas at room temperature is compressed from 100 cm3 to 20 cm3. Its new pressure is now 30 cm Hg. What was the

original pressure of the gas?
Chemistry
1 answer:
andreev551 [17]3 years ago
5 0

Answer:

6 cm Hg

Explanation:

Boyles Law: P1V1=P2V2

(100 mL)(x)=(20 mL)(30 cm Hg)

x = 6 cm Hg

*Text me at 561-400-5105 for private tutoring if interested: I can do homework, labs, and other assignments :)

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What halogen can react with sodium chloride solution to produce chlorine?
ozzi

Answer:

As electro-negativity decreases from Florine to downwards in the group and only Florine is above Chlorine, so Florine should react with sodium chloride solution to produce chlorine.  

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5 0
2 years ago
If the volume of the original sample in Part A ( P1 = 242 torr , V1 = 27.0 L ) changes to 80.0 L , without a change in the tempe
Brrunno [24]

The new pressure is 81.675 torr

Since temperature and moles are held constant, we use Boyle's Law:

A gas law known as Boyle's law asserts that a gas's pressure is inversely proportional to its volume when it is held at a fixed temperature and of a given mass.

To put it another way, as long as the temperature and volume of the gas remain constant, the pressure and volume of the gas are inversely proportional to one another.

The Anglo-Irish chemist Robert Boyle proposed Boyle's law in the year 1662.

P1V1=P2V2. Simply plug in your values. The units can remain in torr. Converting to atmospheres is not needed.

(242 torr)(27.0 L)=P2(80.0 L)

P2=[(242)(27)]/80 = 81.675 torr

Hence The new pressure is 81.675 torr

Learn more about Boyle's Law here

brainly.com/question/26040104

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3 0
1 year ago
A diatomic molecule with a triple covalent bond is
Debora [2.8K]
The diatomic molecule with a triple covalent bond is N2.
Nitrogen has five atoms in its valence shell. In order for it to attain the octet structure, that is, to have eight electrons in its outermost shell, it has to donate three electrons, just like the other element it is reacting with in order to form a triple covalent bond.
5 0
3 years ago
Read 2 more answers
What is the mass, in grams, of 0.000142 mol of vitamin C?
tatiyna

Answer:

0.0250 g

Explanation:

176.12 g/mol* 0.000142 mol =0.0250 g

6 0
3 years ago
Write 0.032 in scientific notation
baherus [9]
In scientific notation it would be 3.2

3.2 \times  {10}^{- 2}
8 0
3 years ago
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