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Andrei [34K]
3 years ago
8

A gas has a volume of 350.0 mL at 45.0°C. If the volume changes to 400.0 mL, what is the new

Chemistry
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

363.6 K

Explanation:

To solve this problem we will use Charles law equation i.e,

V1/T1 = V2/T2    

Given data

V1= 350 mL

T1= 45.0 °C

V2= 400.0 mL

T2=?

First of all we will convert the temperature into kelvin because the kelvin is an absolute scale of temperature.

T1= 45.0+ 273.15 = 318.15 K

Now we will put the values in equation

350 mL / 318 K = 400 mL / V2

V2= 400 mL × 318.15 K / 350 mL  

V2= 363.6 K

We can see that by increasing the temperature volume of given gas is also increases. we conclude that volume and temperature are directly proportional to each other. It is also confirmed by the Charles law.

“ The volume of given mass of a gas at a constant pressure is directly proportional to the absolute temperature ”

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The appropriate answer is D. volatility. Volatility refers to the susceptibility of liquids to vaporize. Perfume is liquid when applied but because of volatility, it has a tendency to vaporize and so it will convert to a gas and diffuse across the room. The process by which a liquid changes to a vapor is called evaporation. 
5 0
2 years ago
Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as aspirin. A typical aspirin tablet, however, contains only a
pashok25 [27]

Answer:

6 grains

Explanation:

The equation of the reaction between NaOH and aspirin is;

C9H8O4(aq) + NaOH (aq) ------>C9H7O4Na(aq) + H2O(l)

Amount of NaOH reacted = concentration × volume = 0.1466 M × 14.40/1000 L = 2.11 × 10^-3 moles

Given that aspirin and NaOH react in a mole ratio of 1:1 from the balanced reaction equation above, the number of moles of aspirin reacted is 2.11 × 10^-3 moles

Hence mass of aspirin reacted = 2.11 × 10^-3 moles × 180.2 g/mol = 0.38 g

If 1 grain = 0.0648 g

x grains = 0.38 g

x= 0.38 g/0.0648 g

x= 6 grains

3 0
3 years ago
Marissa blows up balloons for a party. She decides how big or small to make each balloon. Why does the air she blows into each b
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Air is it gas so it fills its container, the balloon, completely.
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Force = 2.32 N<br> Acceleration = 0.19 m/s2<br> Mass= ?
Mkey [24]

mass = 12.2 kg

Explanation:

To find the mass we use the following formula (Newton's Second Law of Motion):

force = mass × acceleration

mass = force / acceleration

mass = 2.32 N / 0.19 m/s²

mass = 12.2 kg

Learn more about:

Newton's Second Law of Motion

brainly.com/question/834262

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2 years ago
Calculate the number of moles found in 3.045x1024 atoms of helium.<br><br> PLS HELP
Kisachek [45]

Explanation:

so for this u have to use this equation where

Moles = number of particle/6.02×10^23

= 3.045 × 10^24/6.02×10^23

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write it to 3 S.F so 5.06 moles

4 0
2 years ago
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