A 0.340 mol sample of an unknown gas contained in a 7.00 L flask is found to have a density of 1.74 g/L. The molecular weight of the unknown gas is

Q: How many atoms of mercury are required to produce 3.49 L of H, gas (density= 0.0899 g) according to…

A: Given, 2 Hg(l) + 2 HNO3(aq) ----> Hg2(NO3)2(aq) + H2(g) Volume of the hydrogen (H2) gas = 3.49 L…

Q: A 2.53 mol sample of Kr has a volume of 921 mL. How many moles of Kr are in a 4.52 L sample at the…

A: Initial number of moles of Kr gas (n1) = 2.53 mol Initial volume of the gas (V1) = 921 mL…

Q: If 2.00 grams of helium gas and 3.82 g of oxygen gas are mixed together, what is the mole fraction…

A: Given- Mass of oxygen - 3.82 g Mass of helium - 2.00 g To find- Mole fraction of He in the solution…

Q: Determine the volume of O2 (at STP) formed when 50.0 g of KClO3 decomposes according to the…

A: First convert the given grams of KClO3 to moles. Moles of KClO3=50.0g122.55g/mol=0.408 moles Given…

Q: A 0.0853 mol sample of an unknown gas contained in a 3.00 L flask is found to have a density of 1.37…

A: Given data :  1. No. Of mole = 0.0853 mol  2. Volume = 3.00 L  3. Density = 1.37 g/L  To calculate :…

Q: A 0.101 mol sample of O2 gas is contained in a 3.00 L flask at room temperature and pressure. What…

A:

Q: A 3.38 mol sample of Kr has a volume of 901 mL. How many moles of Kr are in a 4.80 L sample at the…

A:

Q: A 4.52x10-2 mol sample of O₂ gas is contained in a 2.00 L flask at room temperature and pressure.…

A:

Q: Zn(s) + 2HCl(aq) → H2(g) + ZnCl2(aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at…

A: STP represents the Standard Temperature Pressure conditions. Given: The reaction is as follows,…

Q: What is the molecular weight of a gas which diffuses 1/50 as fast as hydrogen? (H;: 2.016 g/mol) A)…

A:

Q: How many liters of oxygen gas are required to completely  react with 2.4L of hydrogen gas to form…

A: Hydrogen reacts with oxygen from water. The equation for the balanced chemical reaction is as…

Q: Balance SO2(g) + O2(g) → SO3(g) given 2.4 mol of O2 and then determine the volume of the indicated…

A:

Q: 0.250 mol of N2 is placed into a 0.750 L container. What is the density of the gas? 84.1 g/L 4.67…

A:

Q: volume of Oxygen

A:

Q: A gas is formed in the reaction shown below. The gas laws can help determine the volume of gas…

A: For the reaction; Zn(s) + 2 HCl(aq) → ZnCl₂ + H₂(g)  1 mol   2 mol           1 mol     1 mol Mass of…

Q: Consider the following reaction: 2 NH3 (g)   +   3 Cl2 (g)   →   N2 (g)   +   6 HCl (g) A mixture…

A: Consider the following reaction: 2 NH3 (g)   +   3 Cl2 (g)   →   N2 (g)   +   6 HCl (g) The given…

Q: The density of a gas is 0.803 g/L at STP. What is its molar mass? a. 27.9 g/mol b. 22.4 g/mol O c.…

A: Given: Density = 0.803 g/L  At STP:  Temperature = 0 oC = 273.15 K                 Pressure = 1.0…

Q: Vitamin C has a molar mass of 176.1 g. How many moles of vitamin C are there if 50.5 g of the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A balloon that contains 0.43 mol of helium in a volume of 6.0 L develops a leak so that its volume…

A:

Q: Consider the following  4Fe(s) +3O [down]2 (g)---> 2Fe[down]2 O[down]3 (s)  it takes 1.67L of…

A: Stoichiometry relates all reactants-products moles through their stoichiometric number and deals in…

Q: under certain conditions, Chlorine gas Lalz) nas a density of o.984 9/4. what is the moler volum e…

A: At standard temperature and pressure the molar volume is volume occupied by one mole of a chemical…

Q: Which of the following gas samples would have the largest volume, if all samples are at the same…

A: The volume of the gases  at constant T and P is determined using the following equation…

Q: A sample of methane gas collected at a pressure of 1.07 atm and a temperature of 19.0 °C is found to…

A: We use the ideal gas formula to calculate moles of CH4 gas  PV = nRT Where P = pressure of CH4 gas =…

Q: What volume (L) of H2 gas is produced when 92 g Zn (atomic weight: 65.38 g/mol) is decomposed…

A: Given: The mass of zinc is 92 g and its molar mass is 65.38 g/mol. The temperature is 0°C and…

Q: A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to…

A: Given, Mass of alloy sample = 11.433 g Volume of hydrogen gas = 8.52 L Pressure of hydrogen gas =…

Q: The density of F2 gas is 1.70 g/L.How many moles of F2 gas are present in a 475 L sample of a gas…

A: Given data, The density of F2 gas is 1.70 g/L. Total mixture of solution (F2+He) = 475 L

Q: A gas is formed in the reaction shown below. The gas laws can help determine the volume of gas…

A:

Q: A sample of neon gas collected at a pressure of 1.19 atm and a temperature of 6.00 °C is found to…

A: At the given temperature, pressure, and volume the mole of gas can be calculated by the ideal gas…

Q: How many moles of H2S are contained in 35.0g sample of this gas?

A:

Q: Zn (s)  +  2HCl (aq)  →  H2 (g)  +  ZnCl2 (aq) When 15.0 g of Zn reacts, how many L of H2 gas are…

A: Number of moles of Zn can be calculated as follows: No.of moles=massmolar massNo.of moles=15.0g65.38…

Q: W hat volume of chlorine gas at 25°C and 0.950 atm can be produced by the reaction of 12.0 g of…

A:

Q: 16 grams gas occupies 2.05 L of space at 27°C & 912 mmHg. What is the molecular weight of the gas?

A: To proceed with this problem, we must consider the gas to be ideal gas.  We know the ideal gas…

Q: A gaseous compound has a density of 2.84 g/L at 1.00 atm and 45oC. What is the molar mass of the…

A:

Q: One method of analyzing amino acids is the van Slyke method. The characteristic amino groups (−NH2)…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: 2. A sample containing 4.80g of Oz gas has an initial volume of 15.0L. What is the final volume in…

A: Answer : Volume = 8.75 L

Q: A gas is formed in the reaction shown below. The gas laws can help determine the volume of gas…

A: For the reaction:  Zn(s) + 2 HCl(aq) → ZnCl₂ + H₂ 1 mol   2 mol          1 mol     1 mol Mass of Zn…

Q: Gaseous chlorine is held in two separate containers at identical temperature and pressure. The…

A:

Q: Which gas sample has the greatest mass? A 5.0 moles of Cl2 B 10.0 moles of O2 C 15.0 moles of N2 D…

A: The number of moles of a compound is calculated using the following formula: Moles=MassMolar mass…

Q: etermine the total volume of all gases formed when 75.0 mL an explosive (C3H5(NO3)3 , d = 1.60 g/mL,…

A:

Q: Determine the volume of O2 (at STP) formed when 50.0 g of KCLO3 decomposes according to the…

A:

Q: When aluminum reacts with concentrated hydrochloric acid, hydrogen gas is produced.…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Gas Stoichiometry ( AT STP)  Lithium reacts with nitrogen gas according to 6Li(s) + N2(g) >…

A: 6 Lis+N2g→2 Li3 Nsmass=?    58.5 ml  n=58.522400    =0.0026 mol

Q: A self-contained underwater breathing apparatus uses canisters containing potassium superoxide. The…

A: The given reaction is as follows: 4KO2(s) + 2CO2(g) → 2K2CO3(s) + 3CO2(g) The volume of CO2 = 12.4 L…

Q: Assuming all gases are the same temperature and pressure how many milliliters of hydrogen gas must…

A:

Q: 8. How many liters of oxygen gas are formed from 95.4 g of Copper (II) oxide? Copper (II) oxide…

A: Given reaction is :  Copper(II) oxide  ---> Copper + oxygen  Given mass of Copper(II) oxide =…

Q: mass

A:

Q: How many grams of Magnesium Oxide form when 14.8L of oxygen gas, measured in STP, completely reacts…

A: Given that : The initial volume of oxygen gas = 14.8 L We have to determine the grams of magnesium…

Q: An 11.6-L sample of gas is determined to contain 0.35 mole 8f N3. AL moles

A: Avogadro's law : A statement that under the same conditions of temperature and pressure, equal…