A reaction generates hydrogen gas, H2, as a product. The reactants are mixed and sealed in a 250-mL vessel. After 20.0 minutes, 3.91x10-2 mol H2 have been generated.       Calculate the final concentration (in M) of H2 gas.

Q: What mass in grams of NaN; is required to produce 50.2 L of N2 gas (density = %3D 1.25 g/L )…

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Q: Chlorine gas reacts with fluorine gas to form chlorine trifluoride: Cl2(g) + 3 F2(g) --------> 2…

A: The number of moles of given substance can be calculated as follows Number of moles=MassMolar mass…

Q: calculate the number of moles of barium chloride which are present initally before the reaction

A: Molarity is defined as number of moles of solute present in 1 litre of the solution

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A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

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A: The decomposition of CaCO3 is CaCO3 (s) → CaO (s) + CO2 (g). The mole ratio of the equation is…

Q: How many grams of nitrogen gas are neeeded to produce 35.25g of ammonia are produced? 27.50g…

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Q: Suppose instead that the original cylinders contained ½ mol of O2 (g) and 3/2 mol of N2 (g),…

A: Number of moles of O2= 1/2 mol Number of moles of N2 = 3/2 mol

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A: Given that 10ml of chlorine and 50ml of hydrogen gas reacted and produced HCl gas. And asked for…

Q: A gas mixture is composed of 2.0 moles N2 and 1 mole H2. Calculate the average molar mass of the gas…

A: Given: 2 moles of N2 1 mole of H2 2 moles of N2 has mass 2*28 = 56 gram 1 mole of H2 has mass 2 gram…

Q: PV 1.00 atm x70 L n RT Lxatm 0.0821 x 295 К Кхmol

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Q: and assuming concrete is 100% by volume CaO, how much CO2 was released producing the concrete used…

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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…

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Q: Iron(III) chloride is used to treat drinking and waste water. It can be made by reacting iron with…

A: Ideal gas equation is used to relate the volume of ideal gas, pressure, temperature and number of…

Q: In a space shuttle, the CO2 that the crew exhales is removed from the air by a reaction within…

A: Given: CO2(g) + 2LiOH(s) ⟶ Li2CO3(aq) + H2O(l) No. Of moles of CO2 = 20 mole LiOH is excess reagent.…

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: H2O2 is commonly used as a mild oxidizing agent. If you only need 1.50 x 104 mol H2O2 to run a…

A: Given: Moles of H2O2 required = 1.50 × 10-4 mol. Density of H2O2 solution = 1.11 g/mL. And %(w/w) of…

Q: Nitrous oxide (N₂O), also known as laughing gas, has uses in surgery and dentistry as an anesthetic.…

A: Mass of N2O in cylinder = 3.40 kg = 3400 gmolecular weight of the nitrous oxide = 44.013 g/mol.No of…

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Q: calculate the mass of water created.

A: Given :- mass of O2 = 250 g  To calculate :- mass of H2O    Number of moles = mass/molar mass  Mass…

Q: Liquid nitrogen trichloride is heated in a 2.50 L clo. gaseous elements. The resulting gas mixture…

A: Given :- Liquid nitrogen trichloride is heated in a 2.50-L closed reaction vessel until it…

Q: 3.50L of chlorine gas at SATP conditions is reacted with a 1.05L sample of 0.150mol/L potassium…

A: At SATP: T = 298.15 K = 25oC P = 101.325 kPa= 1 atm

Q: a space shuttle, the CO2 that the crew exhales is removed from the air by a reaction within…

A: The balanced equation is CO2 (g) + LiOH (s)- --> Li2CO3 (aq) + H20 Molar mass of H2O = 18 g/mol…

Q: 8. How many moles of gas are formed when 1 cm3 of ammonium nitrate is reacted completely according…

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Q: Nitric acid is produced from nitrogen monoxide, which is in turn is prepared from ammonia by a…

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Q: What is the mass of a 5.6 liter (STP) sample of CO2 gas?

A: Given data, CO2 gas = 5.6 L 1 mole of CO2 occupies = 22.4 lit at S.T.P

Q: es relative to the average kinetic energy of hydrogen

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A: Given :  Mass of sulfur = 1850 gm  Volume of O2 gas = 6.50 x 101 ml = 6.5 x 10-2 L  Pressure of O2…

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Q: When 90.00 mL of 0.200 M MnO4–(aq) was reacted with 200.00 mL of 0.280M H2O2(aq), the amount of…

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Q: What is the molar volume of solid quartz, SiO2?(density =2.65g/cm3) (molar volume is the volume…

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Q: A high temperature reaction vessel is charged with 0.5080 mol of iron powder and 42.1 L of oxygen…

A: Recall the given reaction 4Fes + 3O2 g→ 2Fe2O3s Given that 0.5080 mol of iron is mixed with 42.1 L…

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Q: In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was…

A: The given data contains, Volume =4800 m3V=4.8×106 LTemperature T=273 KPressure=1 atm

Q: 4HCI (g) + O2 (g)= 2H2O (g) + 2C12 (g) a. Volume is increased: b. Some Argon gas is added: c.…

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

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Q: How many moles of gas are formed when 1 cm3 of ammonium nitrate is reacted completely according to…

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

Q: convert 0.169 molar hc2h3o2 to % (m/v)

A: molarity is the number of moles of solute in 1 liter of solution. And m/v is the mass of solute in…

Q: Sulfuric acid (H2SO4 Molar Mass = 98.1) can be prepared from S8, O2 and H2O by the following series…

A: The balanced reaction for preparation of sulfuric acid is:S8 + 8 O2 → 8 SO28 SO2 + 4 O2 → 8 SO38…

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Q: What volume (in mL) of 3.0M H2SO4 do you need to completely react with 0.51 g Cu(OH)2?

A: Given :-  Mass of Cu(OH)2 = 0.51 g  Molarity of H2SO4 solution = 3.0 mol/L  To calculate :-  Volume…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".