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Iteru [2.4K]
3 years ago
6

What values do we plot on the yaxis of a graph?

Chemistry
1 answer:
iris [78.8K]3 years ago
7 0

Answer:the answer is a

Explanation:I’m 90% positive.

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What will be the volume of a balloon at 98 kPa if its volume is 9.65 L at 235 kPa?
OlgaM077 [116]
<span>Boyle's Law or Boyle-Mariotte's Law: Under constant temperature, the volume occupied by a given fixed mass of a gas is inversely proportional to its pressure.

Formula:
</span>\frac{ P_{1} }{ P_{2} } = \frac{ V_{2} }{ V_{1} }
Product of extremes equals product of means
P_{1} * V_{1} = P_{2} * V_{2}

Data:
P_{1} = 235\:kPa
V_{1} = 9.65\:L
P_{2} = 98\:kPa
V_{2} = ?

Solving:
P_{1} * V_{1} = P_{2} * V_{2}
235*9.65 = 98*V_{2}
2267.75 = 98V_{2}
98V_{2} = 2267.75
V_{2} =  \frac{2267.75}{235}
\boxed{\boxed{V_{2} \approx 23.14\:L}}\end{array}}\qquad\quad\checkmark
4 0
3 years ago
The mass percent of hydrogen in hydrogen peroxide, h2o2, is
miss Akunina [59]
The atomic weight of H is 1, O is 16.
There are two of each in a hydrogen peroxide molecule.
(1*2)+(16*2)=2+32
2+32=34
The weight of the whole molecule is 34, and hydrogen makes up 2 of that.
(2/34)*100=0.0588235294*100
0.0588235294*100=5.88235294

The percentage mass of hydrogen in a hydrogen peroxide molecule is 5.88%
3 0
3 years ago
Read 2 more answers
The temperature of a container of oxygen gas is increased from 149 k to 298 k which of the following statement is true
ozzi

Answer:

______is used in production of hard disk.

Explanation:

8 0
3 years ago
A TLC plate showed 2 spots with Rf values of 0.25 and 0.26. The plate was removed from the developing chamber, the residual solv
Katena32 [7]

Answer:

See explanation

Explanation:

TLC is a chromatographic method in which the solute is spotted on a plate and the plate is placed in an air tight chamber containing a solvent. The solvent is maintained below the level of the spot. The capillary movement of the solvent through the plate achieves the required separation.

If two spots have Rf values of 0.25 and 0.26 respectively and then the plate was removed from the developing chamber, subsequently, the residual solvent was allowed to evaporate from the plate, and then the plate was returned to the developing chamber.

It will be observed after the second development is complete that the new Rf values will be 0.50 and 0.52 respectively. It will just be as though the second chromatogram picked up from where the first chromatogram stopped.

4 0
3 years ago
If 1.2 moles of ideal gas occupy a volume of 18.2 L at a pressure of 1.8 ATM what is the temperature of gas in degrees Celsius.
Novosadov [1.4K]

Answer: A 59.5 degree celcius

The equation that we will use to solve this problem is :

PV = nRT where:

P is the pressure of gas = 1.8 atm

V is the volume of gas = 18.2 liters

n is the number of moles of gas = 1.2 moles

R is the gas constant =  0.0821

T is the temperature required (calculated in kelvin)

Using these values to substitute in the equation, we find that:

(1.8)(18.2) = (1.2)(0.0821)(T)

T = 332.5 degree kelvin

The last step is to convert the degree kelvin into degree celcius:

T = 332.5 - 273 = 59.5 degree celcius

8 0
3 years ago
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