64. What is the pressure in millimeters of mercury of 0.0115 mol of helium gas with a volume of 214 mL at 45 °C? (Hint: You must convert each quantity into the correct units (L, atm, mol, and K) before substituting into the ideal gas law.)

Q: A sample of xenon gas occupies a volume of 6.95L at 431K. If the pressure remains constant, at what…

A: Initial volume, V1 = 6.95 L Initial temperature, T1 = 431 K Final volume, V2 = 3.77 L Final…

Q: A vessel with a volume of 26.9 L contains 2.80 g of nitrogen gas, 0.605 g of hydrogen gas, and 79.9…

A:

Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of 13…

A:

Q: What is the volume occupied by 1.24 mol of a gas at 35oC if the pressure is 96.2 kPa? What is the…

A: This is given by equation of state for ideal gas i.e.  PV = nRT On combining all the gas laws a…

Q: 4. A 34.0-L cylinder contains 305 g of oxygen gas at 22°C. How many grams of gas must be released to…

A:

Q: A gas mixture contains O2, N2, and Ar at partial pressures of 125, 175, and 225 mm Hg, respectively.…

A: Given details, At partial pressures, P(O2)=125 mm HgP(N2)=175 mm HgP(Ar)=225 mm Hg Then, the total…

Q: What is the pressure of 17 moles of gas at a temperature of 67°C and a volume of 88.89 L?

A:

Q: In a mixture of He, Ne, and Xe gases with a total pressure of 925 atm, if there is 10.5 g of each…

A: Number of moles = Mass/molar mass Pi = Xi x P Where, Pi = partial pressure of gas i ; P = total…

Q: When 7.16 g of calcium metal completely reacts with excess water, what is the pressure, in atm, of…

A: Given Weight of calcium=7.16g Volume=2.1L Temperature=306 k To calculate pressure in atm

Q: 5. When 40.0 liters of oxygen gas at 20.0 °C is compressed to 3.00 liters, what must the new…

A: COMPRESSION OF GAS: Gases can be compressed in order to enhance the pressure of the gas. When gases…

Q: A sample of hydrogen gas at 282 K experiences a change in volume from 3.79 L to 3.65 L. If its new…

A: Recall the following expression          P1V1T1=P2V2T2Here initial pressure of hydrogen gas is P1atm…

Q: If the pressure exerted by a gas at 25°C in a volume of 0.044 L is 3.81atm, how many moles of gas…

A: As per the ideal gas equation, P V=nRT where P is the pressure, V is the volume, n is the moles of…

Q: A 33.0-L cylinder contains 324 g O2(g) at 20 ∘C. How many grams of O2(g) must be released to reduce…

A: According to ideal gas law, PV = nRT where P = pressure of gas V = volume n = moles R = gas constant…

Q: What is the pressure in a 19.1 L cylinder filled with 0.684 mol of nitrogen gas at a temperature of…

A:

Q: 2. A sample of gas occupies a volume of 10.5 L at 700 mmHg and 100°C. What would the new pressure…

A:

Q: A sample of argon gas occupies a volume of 866 mL at 28°C. What volume will the gas occupy at 50.7°C…

A: Answer: 931.3 mL volume occupy at 50.7°C

Q: What is the temperature, in degrees Celsius, of 2.50 moles of neon (Neon) gas confined to a volume…

A:

Q: The mole fraction of CH4 in a mixture of gases is 0.285 with a partial pressure of 0.498 atm. What…

A: The total pressure of a mixture of gases not reacting with each other is equal to the sum of partial…

Q: A gas occupies a volume 1.27 L and 25 Celsius is adjusted to new volume of 1.02 L at standard…

A:

Q: 4. A certain quantity of helium gas is at a temperature of 27°C and a pressure of 1.00 atm. What…

A:

Q: What volume will 9.60 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure…

A: If P is the pressure of the gas, V is the volume of the gas, T is the temperature of the gas in…

Q: If a 3 mole sample of nitrogen at 25C, 3.0 atm, and 15 L is compressed to occupy 2.5 L, what is the…

A: Given, Number of moles of nitrogen =3 moleinitial pressure P1 =3.0 atminitial volume V1 =15.0 Lgas…

Q: If some neon gas at 121,000 Pa were allowed to expand from 37 mL to 60 mL without changing the…

A: From the Boyles gas law, we know,     (At constant temperature)

Q: Calculate the density of He gas at 1atm of pressure and 20.00C. Explain (using your calculated…

A: To calculate the density of the He gas at 1 atm pressure and 20.0oC temperature.

Q: What is the pressure of 2.01 g of nitrogen gas confined to a volume of 0.205 L at 36 ∘C?

A: Given, Mass of nitrogen = 2.01g Volume = 0.205L Temperature  = 36 degree Celsius.

Q: When a 222.3 mL sample of nitrogen is kept at a constant temperature of 5.0 °C, it has a pressure of…

A: Given data, Initial volume (V1) = 222.3 mL = 0.2223 L Temperature = 5oC Initial pressure (P1) =…

Q: The partial pressure of fluorine gas in a 2.00 L container is 0.85 atm while the partial pressure in…

A: The equation which is related to "P" (pressure in atm), "V" (volume in liter), "n" (moles), "R" (gas…

Q: A sample of gas at 911.9 mmHg and occupying a volume of 13.20 L has a decrease in pressure to 98.94…

A: We have to calculate the new volume.

Q: A person accidentally swallows a drop of liquid oxygen,O2(I), which has a density of 1.149 g/mL.…

A: The given data contains, density = 1.149 g/ml Volume = 0.050 ml Pressure = 1 atm Temperature = 37…

Q: If the temperature of 179.6 L of a gas at 64.9 C falls by 7.2 C, what is the new volume of the gas…

A: We know, at constant pressure; V1 / T1 = V2 / T2 where, V1 = initial volume T1 = initial temperature…

Q: To what temperature must a sample of nitrogen at 39.2oC and 0.511 atm be taken so that its pressure…

A: Applying formula P1/T1= P2/T2

Q: At 618 mm Hg, a sample of nitrogen gas occupies 490 mL.  What volume does the gas occupy if the…

A: We know Boyle's Law states that, "The absolute pressure(P) exerted by a given mass of an ideal gas…

Q: If a gas occupies a volume of 0.550 L at 25°C, at what temperature, in °C, will it occupy a volume…

A: In this question, we want to determine the temperature of gas in °C when volume Increases from…

Q: What is the mass of chlorine gas present in 17.0 L at a pressure of 98.5 kPa and a temperature of…

A: This problem will be solved using ideal gas equation which is given as PV= nRT  Where, P = pressure…

Q: What mass of helium gas exerts a pressure of 965 mmHg in a volume of 5.40 L at a temperature of…

A: Assuming the gas to be an ideal gas. So according to ideal gas law, PV = nRT where, P = pressure of…

Q: A sample of xenon gas occupies a volume of 7.38 L at 459 K. If the pressure remains constant, at…

A: Given, Initially Volume (V1) = 7.38 L Temperature (T1) = 459 K Initially Volume (V2) = 4.20 L…

Q: What is the mass (in g) of a 28.2 L sample of carbon dioxide gas at a temperature of 30.0 oC and a…

A:

Q: If the sample of helium gas has a volume of 6.4 L at a pressure of 0.70 atm, what is the new volume…

A: Given data Initial pressure of Helium : P1= 0.70 atm Initial Volume of Helium : V1= 6.4 L New…

Q: A sample of nitrous oxide (N2O) gas at 298.15 K is heated to 373.15 K and also allowed to expand…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: What is the pressure in a 19.0 L cylinder filled with 0.681 mol of nitrogen gas at 322 K?

A: The ideal gas equation is  PV = nRT  P = pressure of the gas V = volume  n = moles of the gas R =…

Q: What is the pressure in a 10.0-L cylinder filled with 0.448 mol of nitrogen gas at a temperature of…

A:

Q: What is the pressure of a 10.0 L cylinder filled with 0.448 mol of nitrogen gas at 315 K?

A:

Q: What is the pressure in a 9.00 L tank with 42.5 grams of fluorine gas at 355 K?

A: Given :-  volume occupied by gas = 9.00 L  mass of F2 gas = 42.5 g  temperature = 355 K   To be…

Q: What mass of neon gas is required to fill a 5.52-L container to a pressure of 1.17 atm at 37…

A: Use the ideal Gas equation to calculate the moles of Gas, Then using moles calculate the mass of the…

Q: 冰 26.0 cm What is the pressure of the gas contained in bulb C? (Specify units-- your choice of torr,…

A: We know that, atmospheric pressure will be equal to 760 torr that is Patomspheric 1cm =9.9torr So…

Q: What is the pressure of a 8.0 g sample of nitrogen gas at 25 degress celcius in a closed 500 mL…

A:

Q: What is the volume, in liters, occupied by 1.8 moles of N2 gas at 1.254 atm pressure and a…

A: By using ideal gas equation we have :    P V = n R T  Where P = pressure             V = volume…

Q: 4. What volume would be occupied by a gas that has a pressure of 0.950atm if its volume was 1.50L at…

A: Given: Case I:Volume of gas, V1= 1.50LPressure of gas,P1=1.16 atmCase II:Volume of gas, V2=…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.