1. Tonic Bonds are

A gas has a pressure of 7.01 atm at 227°C. What will its temperature be if the pressure is increased to 12.1 atm and volume is h

kirill [66]

Answer:

The temperature of the gas will be 590.05 C.

Explanation:

Gay-Lussac's law can be expressed mathematically as follows:

$\frac{P}{T} =k$

Where P= Pressure, T = temperature, K = Constant

This law indicates that the ratio between pressure and temperature is constant.

This law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of shocks against the walls increases, that is, the pressure increases. That is, the gas pressure is directly proportional to its temperature.

In short, when there is a constant volume, as the temperature increases, the gas pressure increases. And when the temperature decreases, gas pressure decreases.

It is desired to study two different states, an initial state and an final state. You have a gas that is at a pressure P1 and at a temperature T1 at the beginning of the experiment. When the temperature varies to a new T2 value, then the pressure will change to P2, and the following will be true:

$\frac{P1}{T1} =\frac{P2}{T2}$

In this case:

P1= 7.01 atm
T1= 227 C= 500 K (being 0 C= 273 K)
P2= 12.1 atm
T2= ?

Replacing:

$\frac{7.01 atm}{500 K} =\frac{12.1 atm}{T2}$

Solving:

$T2=12.1 atm*\frac{500 K}{7.01 atm}$

T2= 863.05 K= 590.05 C

The temperature of the gas will be 590.05 C.

6 0

3 years ago

Which element is located in group 2 period 2 on the periodic Table?

AnnZ [28]

Answer:

Berilium is located in period 2 group2

Explanation:

you are welcome

4 0

3 years ago

Read 2 more answers

Which of the following answers shows the appropriate organizational order from smallest to largest? In other words, the first st

Naya [18.7K]

The appropriate organizational order from smallest to largest is option b i.e. paired bases, DNA molecule, gene, chromosome, cell, arm, person

Explanation:

The correct sequence of the organization of the smallest to largest is shown as paired bases, DNA molecule, gene, chromosome, cell, arm, person.

Paired bases: The DNA molecule consists of four nucleotide bases, they are adenine, thymine, cytosine and guanine. These are attached to ribose sugar and phosphoric acid forming nucleoside triphosphate. These dNTPs form base pairs with each other in opposite strands by hydrogen bonding. The base pairing occurs between purine and pyrimidine bases as T and A, G and C.

DNA molecule: The dNTPS joined to form specific DNA sequences which encodes the protein in organism.

Gene: It is the sequence of DNA that codes for a particular protein and undergoes transcription and translation.

Chromosome: The chromosome is a thread like structure in which DNA is packaged as genetic information. The gene is a bead like structure present on chromosome.

Cell: It is the basic unit of life in which genetic information is placed in the nucleus.

Arm: It is group pf cells forming tissue and these forms organs, here arm is an organ.

Person: is made up of million of cells. These cells are grouped in tissues and tissues form organs. Group of organs make a human or person.

8 0

3 years ago

5. __NH3 + __O2 >>>>>__ NO +__ H20

inn [45]

2 NH3+ 2 O2 —> 2 NO+ 3 H2O

5 0

3 years ago

For the reaction magnesium plus hyrdogen chloride yeilds hydrogen and magnesium chloride, calculate the percent yield of magnesi

Lina20 [59]

Answer:

Percentage yield of MgCl₂ = 83.4%

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

Mg + 2HCl —> MgCl₂ + H₂

Next we shall determine the mass of of Mg that reacted and the mass of MgCl₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of Mg = 24 g/mol

Mass of Mg from the balanced equation = 1 × 24 = 24 g

Molar mass of MgCl₂ = 24 + (35.5×2)

= 24 + 71

= 95 g/mol

Mass of MgCl₂ from the balanced equation = 1 × 95 = 95 g

SUMMARY:

From the balanced equation above,

24 g of Mg reacted to produce 95 g of MgCl₂.

Next, we shall determine the theoretical yield of MgCl₂. This can be obtained as follow:

From the balanced equation above,

24 g of Mg reacted to produce 95 g of MgCl₂.

Therefore, 100 g of Mg will react to produce = (100 × 95)/24 = 395.83 g of MgCl₂.

Thus, the theoretical yield of MgCl₂ is 395.83 g

Finally, we shall determine the percentage yield of MgCl₂. This can be obtained as follow:

Actual yield of MgCl₂ = 330 g

Theoretical yield of MgCl₂ = 395.83 g

Percentage yield of MgCl₂ =?

Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 330 / 395.83 × 100

Percentage yield of MgCl₂ = 83.4%

3 0

3 years ago