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garik1379 [7]
3 years ago
12

How many particles of oxygen gas are in 22.0 grams of oxygen ?

Chemistry
1 answer:
lianna [129]3 years ago
5 0

Moles of oxygen = 22g / 32 (Mr of O2)

Moles of oxygen = 0.7 moles (1 dp)

Avogadro's constant = 6.02×10^23 particles per mole

0.7 moles×(6.02×10^23) = Answer

This is assuming it wants O2, if it wants pure oxygen then replace 32 with 16.

You might be interested in
How much 2.0 M phenylmagnesium chloride solution is needed if adding 2.9 mmol of Grignard reagent to a reaction? Your answer sho
Vladimir [108]

Answer:

1,45 mL

Explanation:

The Grignard reaction is a very important organometallic chemical reaction where the Grignard reagent ( alkyl, vinyl, or aryl-magnesium halides) acts as nucleophile in order to the formation of Carbon-Carbon bonds.

In the problem, the phenylmagnesium chloride is the grignard reagent. The volume of 2.0 M phenylmagnesium chloride solution you need to add 2.9 mmol is:

2,9 mmol × \frac{1mL}{2,0mM} = <em>1,45 mL</em>

<em></em>

I hope it helps!

3 0
3 years ago
A brick measures 25 cm by 12 cm by 13 cm. What is the volume of the brick in cm3? How many milliliters of water would this brick
hodyreva [135]
Volume is lxwxh so do 25x12x13
7 0
3 years ago
Under which conditions are gases most soluble in water?
Volgvan

Hi,

Gases are most soluble in water under high pressure and low pressure.

6 0
3 years ago
Provide the name(s) for the tertiary alcohol(s) with the chemical formula C6H14O that have a 4-carbon chain. Although stereochem
pochemuha

Answer:

Explanation:

A tertiary alcohol is a compound (an alcohol) in which the carbon atom that has the hydroxyl group (-OH) is also bonded (saturated) to three different carbon atoms.

Based on the question, the only <u>tertiary alcohol that can result from C₆H₁₄O that have a 4-carbon chain</u> is

2-hydroxy-2,3-dimethylbutane

     H  OH   H    H

      |     |       |      |

H - C - C -   C  - C - H

      |     |       |      |

     H  CH₃  CH₃ H

From the above, we can see that the carbon atom having the hydroxyl group is also bonded to three other carbon atoms. And since we aren't considering stereochemistry, this is the only tertiary alcohol we can have with a 4-carbon chain

4 0
3 years ago
Will mark as Brainliest.
SVETLANKA909090 [29]
<span>If I done the math correctly it is 3729J because you multiply 16.5 g  by the 2260 J/g and get 3729 J</span>
4 0
4 years ago
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