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kirill [66]
4 years ago
15

Plz help me with this question, I am stuck

Chemistry
1 answer:
zhenek [66]4 years ago
7 0

i only know that E is one of them

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If the volume of a gas is 958 mL at 75.0 C, at what temperature would the volume of the gas decrease to 822 mL
zhenek [66]

75.0 degrees Celsius = 75.0 + 273 = 348 K.

Assuming pressure is held constant,

\frac{958}{348}=\frac{822}{T_{2}}  \\ \\ \frac{348}{958}=\frac{T_{2}}{822} \\ \\ T_{2}=\frac{(822)(348)}{958} \approx 299 \text{ K} \\ \\ T_{2} \approx 299-273=\boxed{26^{\circ} \text{ C}}

3 0
2 years ago
Please help!!! (im really bad at chemistry)
Lubov Fominskaja [6]

Answer:

1000ml/1L

Explanation:

8 0
3 years ago
ASAP PLEASE
Natasha2012 [34]

Answer:

  • <u><em>Option A.) 2 ppm</em></u>

Explanation:

<u><em>60 particles in 30 million</em></u> can be expressed as a fraction:

  • \frac{60}{30million}

And, dividing both numerator and denominator by 30, that can be simplified as:

  • \frac{2}{1million}

That means 2 particles of sulfur dioxide in 1 million particles of sample, which is 2 parts per million or<u> 2 ppm</u>, which is the option A.

8 0
4 years ago
HELPPPP PLEASEEEE
Rama09 [41]

1.025 moles of NaCl are present in a solution with a molarity of 8.20M and 125 mL of solution. Details about molarity can be found below.

<h3>How to calculate molarity?</h3>

The number of moles of a solution can be calculated by multiplying the molarity of the solution by its volume. That is;

no of moles = molarity × volume

According to this question, a solution has a molarity of 8.20M and volume of 125 mL of solution.

no of moles = 8.20 × 0.125

no of moles = 1.025moles

Therefore, 1.025 moles of NaCl are present in a solution with a molarity of 8.20M and 125 mL of solution.

Learn more about number of moles at: brainly.com/question/14919968

#SPJ1

6 0
2 years ago
If the water is hot then the food coloring will spread faster,because?
enot [183]

Answer:

Warm water has more energy than cold water. The more energy the more the water molecules move around pushing the food coloring. Think gas—liquid is evaporated because of heat and the molecules move more than in a liquid state.

8 0
3 years ago
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