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SpyIntel [72]
3 years ago
8

A sample of CO2 gas has a volume of 12.0 L at STP. Calculate the number of moles of CO2 in the sample.

Chemistry
1 answer:
inna [77]3 years ago
4 0

Answer:

The number of moles of CO2 is 0,54

Explanation:

We use the formula PV=nRT. The conditions of STP are 1 atm of pressure and 273 K of temperature.

PV=nRT  n=PV/RT

n=1 atm x 12 L/0,082 l atm/K mol x 273K

n=0,536049316 moles

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What is the acceleration of a 50kg object pushed with a force of 500 Newton’s
olasank [31]

Answer:

<h2>10 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m} \\

f is the force

m is the mass

From the question we have

a =  \frac{500}{50}  =  \frac{50}{5}  = 10 \\

We have the final answer as

<h3>10 m/s²</h3>

Hope this helps you

5 0
3 years ago
Two 4-grams paper towels are identical except for their thermal energies. Which paper towel has a higher temperature.
anygoal [31]

Answer:

a- The paper towel with more thermal energy

Explanation:

The paper towel with a higher temperature is one with more thermal energy.

Temperature is the degree of hotness or coldness of a body. And it is a measure of the average kinetic energy of the particles within a medium or body.

As body gains more thermal energy which is a form of kinetic energy, the average kinetic energy of its particles increases.

This will in turn lead to an increase in the temperature of the substance.

So, the paper towel with more thermal energy will have a higher temperature.

5 0
3 years ago
There is a meme in the image i have what does it mean
Gelneren [198K]

Answer:

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the meme is quite common.

5 0
3 years ago
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When a hammer strikes a compound formed by covalent bonds, what will most likely happen to the compound?
Step2247 [10]
If its a solid it will stay and resist but if it isn´t then it will return to its original shape
4 0
3 years ago
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Evaluate each statement and determine which statement is not a determining factor in the formation of intrusive igneous rocks? G
sladkih [1.3K]

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Explanation:

Rocks are naturally occurring solid materials that are made up of different types of minerals which affects it's texture and colours. The three main types of rocks are:

--> sedimentary rocks,

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Igneous rocks are formed from the crystallization and solidification of hot molten rocks which originates from deep within the earth. Depending on where the molten rock solidifies, the igneous rock is divided into two, namely:

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--> extrusive igneous rock.

The INTRUSIVE IGNEOUS rocks are formed within or deep beneath the earth surface when the hot magma SLOWLY cools over millions of years until it solidifies. The slow cooling allows large crystals to grow.

Therefore the statements (None of the above and Magma cools very fast beneath the Earth's surface) are not a determining factor.

7 0
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