Fluorine gas added to a balloon at STP causes it to expand to 1.67 L. (a) Predict how the volume will change if the pressure is held constant and the temperature is lowered. -The volume increases. or -The volume decreases. (b) Calculate the new volume of the gas if the temperature is decreased to −21°C at standard pressure.

Q: If the atmospheric pressure is 749mmHg and the gas is collected over water at 25oC, what is the…

A: At normal condition, if one mole of air is considered, then the mole fraction of hydrogen gas…

Q: What volume, in liters, does 54.036 g of oxygen gas occupy at STP?

A: Given that : Mass of oxygen = 54.036 g At STP means, Temperature (T) = 273 K Pressure (P) = 1 atm…

Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

A:

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Ideal gas equation is equation which obeys gas law under all conditions of temperature and pressure.

Q: Calculate the volume of a sample of an ideal gas that contains 3.72 mol at 655 mmHg and 0oC.

A: Given Pressure (P) = 655 mmHg mole (n) = 3.72 mol Temperature = 0°C   standard value R = 0.0821…

Q: 10. LiOH is used to condition air in spacecraft by absorbing the carbon dioxide exhaled by…

A: According to the balanced equation, 2 moles LiOH can absorb 1 mole CO2.  We can convert the mass of…

Q: Tumbalanced equat on 3. Ammonia, NH, decomposes to form nitrogen gas and hydrogen gas. What mass of…

A: Decomposition reaction of Ammonia: 2 NH3 --> N2 + 3H2

Q: Which of the following statements is NOT correct? A. The pressure exerted by oxygen molecules is…

A: The kinetic molecular theory of gases explains various theories of gases. According to Amonton’s…

Q: What mass of neon gas is required to fill a 5.00-L container to a pressure of 1.02 atm at 25 C?

A: Given that,      Volume of container, V = 5.00 L     Pressure of neon gas, P  = 1.02 atm…

Q: If you pack a bag of potato chips for a snack on a plane ride, the bag appears to have infl ated…

A:

Q: 2) A piece of dry ice (solid CO,) with a mass of 28.8 g sublimes (converts from solid to gas) into a…

A:

Q: In the reaction, 2KClO3(s)⟶2KCl(s)+3O2(g) what mass of potassium chlorate, KClO3, would be required…

A:

Q: If a sample of helium gas has a volume of 120 mL and a pressure of 850 mmHg, what is the new volume…

A:

Q: If you pack a bag of potato chips for a snack on a plane ride, the bag appears to have inflated when…

A: Given :-  Initial pressure = 760 mm Hg  Initial volume = 340 mL  Final pressure = 670 mm Hg  To…

Q: If 7.56 L of a gas are collected at a pressure of 745 mm Hg, then what volume will this gas occupy…

A:

Q: How many grams of Aluminum Chloride would be made from 42.7 L of Chlorine gas at STP reacting with…

A:

Q: Calculate the molar mass of a gas that has a density of 1.70 g/L at STP

A:

Q: What is the density in g/L of Ar gas at STP?

A:

Q: if 2.00 moles of NO gas occupies 10.00L at 22.0 Celcius, what is the pressure of the gas in…

A: Given  Number of mole ( n ) = 2 mole  Volume ( V )         = 10 Liter  Temperature ( T )  = 22 ℃…

Q: What is the density of argon gas at a pressure of 312 mmHg and a temperature of 17 °C?

A:

Q: 17. A sample of neon occupies 105 Lat 28°C under a pressure of 985 torr. What volarne woukd the gas…

A: Using the ideal gas equation  PV = nRT  Where  P= pressure  V = volume  n = no of moles  R = gas…

Q: A 2.50-L volume of hydrogen measured at -96 °C is warmed to 84 °C. Calculate the volume of the gas…

A: At constant pressure, the relation between temperature and volume is expressed using Charles Law.

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: 6. Calculate the density of hydrogen bromide (HBr) gas in grams per liter at 733 mm Hg and 46°C.

A: For the ideal gas, the temperature pressure and the volume are related by the ideal gas equation.…

Q: The following are properties of an ideal gas; EXCEPT, A. molecules are points in space (no volume)…

A: To identify: The incorrect property of the ideal gas.

Q: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

A:

Q: In a combustion reaction, what mass of oxygen gas is needed to react with 25.0 mL of C4H10 gas,…

A: Given :-  Volume of C4H10 gas at STP = 25.0 mL  To calculate :-  Mass of O2 (in grams)

Q: if 89.83 L of water are produced at STP? (4pts)

A: Produced volume of H2O =89.83 L 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g)

Q: A mixture of oxygen and chlorine gases contains twice as much oxygen (by mass) as chlorine. Ifthe…

A:

Q: Which of the following statements is true? a) At a given temperature, lighter gas particles travel…

A: Kinetic theory of gases: According to Kinetic theory of gases, Gas molecules have negligible volume…

Q: Which of the following statements best explains why a closedballoon filled with helium gas rises in…

A: Helium balloons work by the same law of buoyancy. The helium atoms are of lower mass than the air…

Q: define and explain the ideal gas law and avogadro's law in its simplest form

A: Ideal gas law  There are various ways to derive the Ideal Gas Law, but the simplest way is to use…

Q: In the reaction,   MgCO3(s)⟶MgO(s)+CO2(g)MgCO3(s)⟶MgO(s)+CO2(g)   what mass of magnesium…

A: Stoichiometry of reaction.

Q: Hydrogen gas is collected at 40oC during the following reaction:   Al          +            HCl…

A: From given datas Initially we are calculating number of moles from the balanced equation and then…

Q: What is the density of 1.00 mol of carbon monoxide gas at STP?

A: We have given that  1 mole of CO at STP  Molar mass CO = 28 g/mole

Q: Calculate the density of HBr gas in g/L at 733 mmHg and 46°C.

A: Given that:  P = 733mmHg = 733mmHg×1atm/760mmHg = 0.9645atm T = 46°C = 46°C + 273 = 319K  Molar mass…

Q: Calculate the volume of a sample of an ideal gas that contains 5.22 mol at 729 mmHg and 0o

A:

Q: At the standard temperature of 0°C and the standard pressure of 1 atm, how many moles of gas does it…

A: Given,  At the standard temperature of 0°C and the standard pressure of 1 atm, the moles of gas does…

Q: What is the mass of CH4 in a sample that occupies a volume of 16.5 L at STP?

A:

Q: If a gas occupies 1325 mL at 25oC and 740 mmHg, what volume will it occupy at the same temperature…

A: P1 = 740 mm Hg V1 = 1325 ml T1 = T2 = 250C = 298 K P2 = 450 mm Hg

Q: Dinitrogen monoxide can be prepared by heating ammonium nitrate, which decomposes into dinitrogen…

A: At STP , Volume of 1 mol gas = 22.4 L  From this relation we can can convert the volume of gas into…

Q: If a sample of oxygen gas occupies 50.0 mL at -30 °C and 650 mmHg, what is the volume at 30 °C and…

A:

Q: A 2.50 L volume of hydrogen measured at -196 is warmed to 100. Calculate the volume of the gas at…

A: Solution - According to the question - Given - Charles law - Charles's law is an experimental gas…

Q: 2.00 g of fluorine gas occupies 1.18 L at STP. What volume will it occupy at -14 °C and 1 atm?

A:

Q: If 324 L of oxygen gas reacts at STP, how many moles of octane (C^8H^18) are burned with it?

A: According to mole concept :- In the balance chemical reaction the reactants react and the products…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: Given, Volume of N2 at STP = 1580 LVolume of H2 at STP = 4240 LWe know that, at STP 1 mole of a gas…

Q: What is the density of a sample of Argon gas at 55.0 and 795mmhg

A: Given, density d= ? temperature T = 55oC = 328 K pressure p = 795 mmHg = 1.05 atm gas constant R =…

Q: If there are 1.4 x 103 mg of chlorine gas at STP, how many liters does this occupy?

A: 1 mole of an ideal gas occupy 22.4 liters volume at STP. Volume of gas at STP = number of moles of…

Q: Calculate the density of xenon gas at a pressure of 742 mmHgmmHg and a temperature of 45 ∘C

A:

Q: How many moles of helium are needed to fill a balloon to a volume of 8.5 L at 55°C and 682 mmHg?

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.