In a combustion reaction, what mass of oxygen gas is needed to react with 25.0 mL of C4H10 gas, measured at STP?

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 volume will 50.2 grams of carbon dioxide (CO2) occupy at STP?

A: Given a gas sample of CO2   amount of gas CO2   = 50.2 grams the molar mass of CO2 = 44 gm/mol for…

Q: Boron trifluoride gas is used in the manufacture of computer chips. Given that 1.505 g of the gas…

A: STP is defined as the standard temperature, pressure condition at which the temperature of the gas…

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

A:

Q: How many moles of gaseous arsine (AsH3) occupy 0.0400 L at STP? What is the density of gaseous…

A: STP: STP stands for standard temperature and pressure which is used to calculate properties of gases…

Q: What is the mass (in g) of 486 mL of sulfur trioxide measured at STP?

A: The conditions at STP are temperature of 273.15 K (0°C or 32°F) and pressure of 105 Pascal or 1 bar

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

A:

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: A sample of nitrogen occupies a volume of 225 mL  at 45 oC  and 550 mmHg  of pressure. What will its…

A: Given data ; Volume of nitrogen(V) = 225 mL = 0.225 L Temperature(T) = 45°C = 318 K Pressure(P) =…

Q: How many moles of Br2 are in one cubic meter (1.00 m3) of Br2 gas at STP?

A: First we consider that Br2 gas obey ideal gas equation :  PV = nRT  n = PV / RT  Where, n = number…

Q: If an experimental reaction, 32.5 mL were collected of hydrogen gas at 32.5 degrees Celsius and…

A:

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 volume occupied by 3.00 mol of hydrogen gas at STP?

A:

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

A:

Q: A container with a volume of 371 L contains how many moles of Oz at STP?

A: Given  Volume = 371 L  Number of mole of O2 = ?

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: What is the volume of 6.8 x 10 (23) molecules of H2 gas at STP?

A:

Q: 4. At temperature 500 °C, what is the volume of occupied 4.2 grams carbon dioxide gas at STP?

A: Number of moles is calculated by dividing given mass with molecular mass.

Q: A sample of oxygen gas occupies a volume of 400 mL at 50oC and 250 mmHg of  pressure. What will its…

A: Ideal gas equation is used to solve this by using the formula :-  P1 V1 ÷ T1 = P2 V2 ÷ T2

Q: Using the ideal gas law, how many grams of sodium azide are required to inflate an airbag to 67 L of…

A: 2 mol Azide will  give 3 mol of N2  At STP 1 mol of N2 occupy 22.4 L

Q: Carbon monoxide burns in oxygen to form carbon dioxide.  Provide a balanced chemical equation. What…

A: Interpretation- To write the balanced chemical equation when carbon monoxide burns in oxygen to form…

Q: 4) Given the following reaction: 2NO (g) + 02 (g) → 2NO2 (g) How many liters of gaseous oxygen are…

A: According to mole  concept, 1 mole of any gas is equal to 22.4 litre at STP. According to…

Q: Pantothenic acid is a vitamin. Using the Dumas method, you find that a sample weighing 81.6 mg gives…

A:

Q: How many molecules are there in an ideal gas with a volume of 3.09 L3.09 L at STP?

A:

Q: A sample of carbon dioxide occupies 475 mL at a temperature of 19 ºC and a pressure of 375 mm Hg.…

A: Given Volume, V1= 475ml Temperature,T1= 19ºC = 284K Pressure,P1= 375mm Hg Final condition:…

Q: How many grams of PH3 are present in 337 mL of the gas at STP?

A:

Q: Consider the following chemical reaction: heat > KNO2(3) + O20 What mass of KNO3 would have to be…

A: Balance equation  2KNO3 (g) ==> 2KNO2 (s) + O2 (l)

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: How many molecules of CO2 will occupy 22.4 l at STP ?

A: Given: The volume of CO2 at  STP=22.4 L To calculate: The number of molecules present in 22.4 L at…

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

A:

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 is the mass (in grams) of 5.00 L of CH4 at STP?

A: Given :- volume of CH4 at STP = 5.00 L  To calculate :- mass of CH4(in grams)

Q: In the reaction, 2 NaN, (s) 2 Na(s) + 3 N₂(g) ->> how many liters of nitrogen, N₂, measured at STP,…

A:

Q: Iron oxide, FeO2, is produced by the reaction Fe + O2 ® FeO2 (87.8 g/mol). How many grams of FeO2…

A:

Q: What is the mass ( in g) of 455 mL of sulfur trioxide measured at STP?

A: To calculate the mass of sulfur trioxide first of all we calculate the moles of sulfur trioxide: The…

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: What is the volume (in liters) of a 5.89 g sample of O2 at STP?

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: 12. What is the molar mass of a gas that has a density of 5.75 g/L at STP?

A: Write the ideal gas equation. PV= nRT where P is the pressure, V is the volume, n is the number of…

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: 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 volume (in liters) of oxygen (O2) gas is equal to 4.7 moles at STP?

A: Number of moles of oxygen (n) = 4.7 moles At STP the temperature is 25°C = 25+273.15 = 298.15K;…

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:

Q: If 42.7 g of CO is reacted completely at STP, what volume of N2 gas will be produced?

A: STP is the standard temperature and pressure.  Here the temperature is 273.15 K and the pressure is…

Q: Lithium metal reacts with nitrogen gas to make the compound lithium nitride. What mass of lithium…

A: To solve this problem we first calculate the number of moles of nitrogen in 58.1 mL at STP  Then…

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.