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adell [148]
3 years ago
6

A gas that exerts a pressure of ____ psi in a container with a volume of 12.45 L will exert a pressure of 1112 psi when transfer

red to a container with a volume of 6.531 L. (Solve the ____)
Chemistry
2 answers:
mariarad [96]3 years ago
7 0

Answer:

A gas that exerts a pressure of <u><em>583.33 psi.</em></u> psi in a container with a volume of 12.45 L will exert a pressure of 1112 psi when transferred to a container with a volume of 6.531 L.

Explanation:

Initial pressure exerted by the gas = P_1

Initial volume occupied by the gas = V_1=12.45 L

Final pressure exerted by the gas = P_2=1112 psi

Final volume of the gas occupied by the gas = V_2=6.531 L

Applying Boyle's law:

P_1\times V_1=P_2\times V_2

P_1=\frac{P_2\times V_2}{V_1}=\frac{1112 psi\times 6.531 L}{12.45 L}=583.33 psi

The initial pressure exerted by the gas was 583.33 psi.

A gas that exerts a pressure of <u><em>583.33 psi.</em></u> psi in a container with a volume of 12.45 L will exert a pressure of 1112 psi when transferred to a container with a volume of 6.531 L.

soldi70 [24.7K]3 years ago
4 0
Here, we may apply Boyle's law, which is mathematically expressed as:
PV = constant
So, we equate the product of the the initial pressure and volume to the product of the final pressure and volume as such:
P * 12.45 = 1112 * 6.53
P = (1112 * 6.53) / 12.45
P = 583.2 PSI
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<u>Answer:</u> The final temperature of the coffee is 43.9°C

<u>Explanation:</u>

To calculate the final temperature, we use the equation:

q=mC(T_2-T_1)

where,

q = heat released = 1.0\times 10^3J=1000J

m = mass of water = 10.0 grams

C = specific heat capacity of water = 4.184 J/g°C

T_2 = final temperature = ?

T_1 = initial temperature = 20°C

Putting values in above equation, we get:

1000J=10.0g\times 4.184J/g^oC\times (T_2-20)\\\\T_2=43.9^oC

Hence, the final temperature of the coffee is 43.9°C

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4 years ago
A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.
lana66690 [7]

<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

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3 years ago
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To know the answer, you either know what is really the nature and chemistry of a sugar solution. You can also know the answer by knowing the meaning of entropy. Entropy is often interpreted as the degree of disorder or randomness in the system. So the correct statement is that the system becomes more disordered and has an increase in entropy.

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A 53. 5 mL ample of an 5. 4 % (m / v) KBr olution i diluted with water o that the final volume i 205. 0 mL Expre your anwer to t
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The concentration after dilution is 1.4%.

We are aware that concentration and volume are related to each other by the formula -

C_{1} V_{1} = C_{2} V_{2}, where we have initial concentration and volume on Left Hand Side and final concentration and volume on Right Hand Side.

Keep the values to calculate final concentration.

C_{2} = (53.5 × 5.4)/205.0

Performing multiplication on Right and Side

C_{2} = 288.9/205.0

Performing division on Right Hand Side

C_{2} = 1.4%

Hence, the final concentration is 1.4%.

Learn more about concentration -

brainly.com/question/17206790

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The complete question is -

A 53.5 mL sample of an 5.4 % (m/v) KBr solution is diluted with water so that the final volume is 205.0 mL.

Calculate the final concentration and express your answer to two significant figures and include the appropriate units.

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marshall27 [118]

Answer:

i think so

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Concn of Ba(OH)2 in g/L = 5.0 x 10^-4M x 171.33g/mol = 0.086g/mol

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