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4 years ago

7

What is the temperature of the mixture formed of 100 g of water with temperature 15c and 250g of water with temperature 50c in a

supposedly isolated postion

1 answer:

frez [133]4 years ago

8 0

Hello I am a American person

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Which enzyme is responsible for facilitating the hydrogen bonding

jeka57 [31]

Answer:

its the polymerase

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4 years ago

Using the reaction below determine the amount of Sulfur proceduced in grams (this is a limiting reaction question) 2 H2S + SO2 -

marusya05 [52]

Answer:

<u>= 2.2 g pf S. produced</u>

Explanation:

Balanced Reaction equation:

$2H_{2} S + SO_{2}$ → $3S + 2H_{2} O$

1 mole of H2S - 34.1g

? moles - 3.2g

= 3.2/34.1 =<u> 0.09 moles of H2S</u>

Also,

1 mole of S02 - 64.07 g

? moles - 4.42g

= 4.42/64.07 <u>= 0.069 moles of SO2</u>

<u />

<em>Meaning SO2 is the limiting reagent</em>

Finally, 3 moles of S - 32g of sulphur

0.069 mole = ? g of Sulphur

= 0.069 x 32

<u>= 2.2 g pf S.</u>

7 0

3 years ago

For the reaction PCl5(g) + heat PCl3(g) + Cl2(g), what will happen when the volume is increased?

bogdanovich [222]

This is an aplication of Le Chatelier Principle. So, if you need further details about the theory behind the answer, search for this subject.

Here is the answer and the explanation.

You can realize that 1 mol of reactant produce 2 moles of products, which means that the trend of the reaction is to increase the volume (at constant pressure) or to increase the pressure (at constant volume). If you realease the pressure by increasing the volume, Le Chaelier principle permit you to predict a displacement of the equilibrium to the right (to the products). This is, because the equilibrium will try to restore (increase) the pressure by producing more molecules.

So, the answer is the option B. There will be a shift toward the products.

4 0

4 years ago

5. A 4.44 L container holds 0.481 mol of O2 at 22.6°C. What is the pressure of the tank?

mamaluj [8]

Answer: The pressure of the tank will be 2.63 atm

Explanation:

According to ideal gas equation:

$PV=nRT$

P = pressure of gas = ?

V = Volume of gas = 4.44 L

n = number of moles = 0.481

R = gas constant = $0.0821Latm/Kmol$

T =temperature = $22.6^0C=(22.6+273)K=295.6K$

$P=\frac{nRT}{V}$

$P=\frac{0.481mol\times 0.0821Latm/K mol\times 295.6K}{4.44L}=2.63atm$

The pressure of the tank will be 2.63 atm

8 0

3 years ago

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Read this excerpt from Immigrant Kids. The second doctor watched for contagious and infectious diseases. He looked especially fo

Mice21 [21]

up until this is 6AM I 66inches the sending 66

Explanation:

tight ends and I 6AM the sending o the sending the

7 0

4 years ago

Read 2 more answers