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GrogVix [38]
3 years ago
5

The answer to the multiple choice question

Chemistry
2 answers:
defon3 years ago
8 0
The answer should be formaldehyde (B) because formaldehyde has a lower molecular weight then the others. In order to have the same mass of 1 gram there must be more of it.
GenaCL600 [577]3 years ago
3 0
The answer is A but i'm not sure .
You might be interested in
How many moles make up 5.7491x1025 molecules of Dinitrogen pentoxide (N2O5)?
pav-90 [236]

Answer:

<h2>95.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{5.7491 \times  {10}^{25} }{6.02 \times  {10}^{23} }  \\

We have the final answer as

<h3>95.5 moles to 3 sig. figures</h3>

Hope this helps you

6 0
3 years ago
At STP (101.3 kPa, 0 °C), what volume would 2.00 moles of oxygen gas occupy? The gas constant is 8.31
lakkis [162]

Answer:

44.8 L

Explanation:

Ideal Gas Equation -

i.e.,

PV = nRT

where,

P = pressure

V = volume

n = moles

R = universal gas constant

T = temperature

Using the information given in the question, Volume of the gas can be calculated -

P = 101.3 kPa

V = ?

n = 2.00 moles

R = 8.31

T = 0 degree C = 273.15 K

Using the above data, and putting the data in the respective formula -

PV = nRT

101.3 kPa * V = 2.00 moles * 8.31 * 273.15 K

V = 44.8 L

Hence, the volume of the given gas = 44.8 L

4 0
3 years ago
why was it important to heat your hydrate gently for 5 minutes before heating it strongly for 10 minutes
snow_lady [41]
If the hydrate gets too hot it could start splattering and cause a loss of sample.
6 0
2 years ago
Write the mechanism for the acid catalyzed hydrolysis of methyl benzoate
Elis [28]
Hydrolysis of Methyl Benzoate yields Benzoic Acid and Methanol. This reaction is also called as Tranesterification (reverse of esterification). Acid in this reaction protonates the carbonyl oxygen, resulting in increasing electrophillic character of carbonyl carbon. Water acts as a nucleophile and methoxide leaves as a good leaving group. Mechanism is shown below,

7 0
3 years ago
the element Potassium is found in the fourth. Of the periodic table what does that tell you about an atom of potassium​
alexira [117]
It tells you how many atoms it has, how many protons it contains and the number of electrons.

6 0
3 years ago
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