Chemistry Answers

The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically written as

𝑃𝑉=𝑛𝑅𝑇

where 𝑃 is the pressure, 𝑉 is the volume, 𝑛 is the number of moles of gas, 𝑅 is the ideal gas constant, and 𝑇 is the temperature.

Rearrange the equation to solve for 𝑇.

What is the temperature of 0.597 mol of an ideal gas with a volume of 8.22 L and a pressure of 1.678 atm?

A flexible container at an initial volume of 8.15 L contains 5.51 mol of gas. More gas is then added to the container until it reaches a final volume of 17.1 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.

a gas with a pressure of 845 torrs occupies 11. o l what will the pressure be for a volume of 2.50 l if the temperature remains constant

What mass of C4H6 must react to produce 43.2 L of CO2 gas at 499 K and 2.57 atm. 

2C4H6(g)+11O2(g)⟶8CO2(g)+6H2O(l)

First, use the ideal gas equation to calculate the moles of CO2.

Then, calculate the mass of C4H6 from the moles of CO2. Show the conversions required to solve this problem.

What mass of Al2O3 is produced when 13.1 L of O2 gas react with Al at 482 K and 3.40 atm. 

4Al(s)+3O2(g)⟶2Al2O3(g)

First, use the ideal gas equation to calculate the moles of O2. 

Then, calculate the mass of Al2O3 from the moles of O2. Show the conversions required to solve this problem.

If 34.5 mol of an ideal gas occupies 11.5 L at 31.00 ∘C, what is the pressure of the gas?

Calculate the mass of Kr in a 4.59 L cylinder at 34.2 ∘C and 3.28 bar .

The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The ideal gas law is typically written as

𝑃𝑉=𝑛𝑅𝑇

where 𝑃 is the pressure, 𝑉 is the volume, 𝑛 is the number of moles of gas, 𝑅 is the ideal gas constant, and 𝑇 is the temperature.

Rearrange the equation to solve for 𝑃.

What is the pressure of 0.293 moles of an ideal gas at a temperature of 298.0 K and a volume of 4.62 L? 

13C decays with a rate constant of 2.31 x 10-10/min. What is the activity of a 5.21 g sample in curies.

Draw the structure of the tripeptide, which is composed of Phe+Lys+Cys and answer additional questions .

1.1. specify the value of the isoelectric point

1.2 select the indicator and determine the pH of the aqueous solution by indicator's color 1.3 specify the hydrophilic-hydrophobic balance

1.4 draw the structures of the tripeptide that correspond to the pH values 0, pl, 7, 14. Specify the charge of the tripeptide in each pH

2. Construct the Fişcher's formula for the D-mannose [2(L),3(L),4(D),5(D),6- pentahydroxyhexan-1-al] and draw all the tautomers: oxo, and pyranoses, furanoses. 3.Give the formula of the nucleic base cytosine, nucleoside cytidine, nucleotide cytidine-3-phosphate