A student adds 3.00 g of dry ice (solid CO2) to an empty balloon. What will be the volume of the balloon at STP after all the dry ice sublimes (converts to gaseous CO2)?

Q: An elodea plant, commonly found in tropical fish aquaria, was found to produce 5.0 * 10^22 molecules…

A: Number of molecules of oxygen produced by elodea plant per hour = 5.0 x 1022 molecules

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: What is the mass (in grams) of a CO2 gas sample that occupies 5.71 L at STP

A:

Q: Compare the density of CO2 at 0°C and 380. torr with its density at STP

A: T = 0oC P = 380 torr

Q: What is the mass, in grams, of 13.88 L of nitrogen gas (N2: 28.00 g/mol) at STP?

A: Introduction: The gases which follows Charle’s law, Boyle's law, Gay-Lussac’s law, and Avogadro’s…

Q: How many molecules of sulfur trioxide would react with 68.9 liters of water at STP?

A: Applying concept of mole at STP.

Q: If the balloon described in Question 6.44 is released into the air and rises to an altitude of…

A:

Q: A gaseous sample occupies 32.4 mL at −23°C and0.75 atm. What volume will it occupy at STP?

A: The combined gas law describes the correlation among a fixed amount of gas's volume, pressure and…

Q: If gaseous mixture is made of 2.41 g of He and 2.79 g of Ne in an evacuated 1.04-L container at 25…

A:

Q: Place the following gases in order of increasing density at STP. O 2 NH 3 N 2O 4 Ar

A: Given, O2, NH3, N2O4, Ar

Q: A mixture of 25.0 g of NO and an excess of O2 reacts according to the balanced equation ___NO(g) +…

A: The balanced chemical equation is as follows:

Q: What is the density of methane gas, CH4 at STP?

A: STP means standard temperature and pressure  Temperature is 0°C or 273 K  Pressure is 1 atm

Q: What is the volume occupied by 3.00 mol of hydrogen gas at STP?

A:

Q: When fully inflated, a hot-air balloon has a volume of 1.6 X 105 L at an average temperature of 375…

A: Given that volume of hot-air balloon, y =1.6×105 L Pressure, P = 0.975 atm Temperature, T = 375 K…

Q: What volume will be occupied by 8.00 g of oxygen, O2, at STP?

A: The moles of Oxygen is calculated as follows,

Q: How many helium (He) gas molecules are present in a balloon with a volume of 1.5L at STP?

A:

Q: Consider the combustion of 5.3 g of ethane. What volume of carbon dioxide will be formed at STP?

A:

Q: At STP, what is the mass of 11.2 L of Cl2 gas?

A: STP refers to the standard temperature and pressure conditions, which is generally used for gases.…

Q: How many grams of C3H8 gas are present in 945 mL at STP?

A: Interpretation - To determine the grams of C3H8 gas are present in 945 mL at STP.    Concept-  To…

Q: 8. How many moles of argon atoms are present in 15.7 L of argon gas at STP?

A: Given values, at STP, Volume of Ar= 15.7 L  We know the molar volume at STP = 22.4L/mol

Q: A gas sample at 85.3oC and 920 mm Hg pressure has a volume of 2.76 L. What is the volume of the…

A:

Q: What is the mass (in grams) of a CO gas sample that occupies 5.77 L at STP?

A: Given: At STP The volume of the CO gas=5.77 L Mass of CO gas=? At STP: Temperature, T=273 K…

Q: If a sample of helium gas at 900 torr and 25°C is allowed to expand from 2.6 L to 5.8 L without…

A: Helium exert a pressure of 403.45 torr.

Q: Ammonia gas breaks down into hydrogen and nitrogen. If 8.5 L nitrogen is formed at STP, how many…

A: Decomposition of ammonia produce nitrogen and hydrogen gases. Given values -> Volume of N2 gas =…

Q: A gas occupies 256 mL at 720 torr and 25°C. What will its volume be at STP?

A:

Q: You have 110 mL Ar(g) at 14 °C and 735 Torr. How many moles of Ar(g) are present?

A:

Q: What volume, in liters, does 27.946 g of oxygen gas occupy at STP?

A: Given in the question, Mass of oxygen = 27.946 gm Conditions = STP As we know that 1 mole of any…

Q: the density of NH3 at STP.

A: The molecular mass of NH3​ is 17 g/mol.Hence, 1 mole of ammonia weighs 17 g.At STP, 1 mole of…

Q: A sample of nitrogen occupies a volume of 250 mL at 27 C and 630 mm Hg pressure. What will be its…

A: Given data,

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

A:

Q: What mass of helium gas (in g) occupies 11.5 L at STP?

A:

Q: 10. The volume of nitrogen, collected over water, is 247 mL at 25°C and 700.0 torr. Calculate the…

A: Using ideal gas equation , PV=nRT And at STP , T=273 K , P= 760 Torr V=??

Q: What is the mass (in g) of 227 mL of sulfur trioxide measured at STP?

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

Q: g/mol. The molecular weight of a gas that has a density of 4.1 g/L at STP is

A:

Q: What size container do you need to hold 0.0459 mol N2 gas at STP?

A: At S.T.P,22,4 L of gas contains one mole.

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: 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: . If 260 mL of O, gas is collected at 21°C and 101.3 kPa, what volume would this gas occupy at STP?

A: 7.  Given :- initial pressure = 101.3 kPa initial volume = 260 mL initial temperature = 21°C  To…

Q: What volume would 1.75×1023 molecules of an ideal gas occupy at STP?

A:

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

A:

Q: What is the mass (in g) of 258 mL of sulfur trioxide measured at STP?

A: At STP condition, T=273KP=1atmR is 0.08206 Latm mole-1 K-1these parameters are related by the ideal…

Q: A gas at 721 mmHg and 38°C occupies a volume of 3.94 L. Calculate its volume at STP.

A: STP stands for standard temperature and pressure. The standard temperature and pressure values are:…

Q: The density of air at STP is 1.285 g/L. Which of the following cannot be used to fill a balloon that…

A:

Q: What is the mass of 5.00 liters of oxygen gas,O2,at STP?

A: Since at STP  pressure = 1 atm  and temperature = 273.15 K  Using ideal gas equation => PV = nRT…

Q: A sample of nitrogen gas had a volume of 36.7 mL at 64°C and 752 mm Hg. What is the volume of this…

A:

Q: What is a manometer? How does it measure the pressure of a sample of gas?

A: Pressure is nothing but the force exerted per unit area. Various instruments are used to measure the…

Q: The density of air at STP is 1.2754 g/L. If your "250 mL" flask held 272 mL of water (also the…

A: Density, mass and volume are related by the equation given below:

Q: A gas has a volume of 0.500 L at 752 mm Hg and 37oC. What is its volume at STP?

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.