27. Sodium metal reacts explosively with water to produce sodium hydroxide and hydrogen gas. When 8.00 g of sodium is added to water at 94.0 kPa and 275 K, what volume of hydrogen gas will be produced? 2 Na + 2 H,O D 2 NaOH + H, Your answer

Q: A vessel with a volume of 26.9 L contains 2.80 g of nitrogen gas, 0.605 g of hydrogen gas, and 79.9…

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Q: The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure…

A: Pressure is the physical force that is exerted on the object. The general formula of pressure is the…

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: Ammonia is an important fertilizer and industrial chemical. Suppose that a volume of 683 billion…

A: 1) Calculate the number moles of ammonia formed by using ideal gas equation. Ideal gas equation is:…

Q: A balloon is filled with a mixture of 1.18 g of carbon dioxide (44.01 g/mol) and 1.24 g of oxygen…

A: The molar mass of Cabon Dioxide =  44.01 g/mol The molar mass of Oxygen = 32.00 g/mol V = 1.17L  T =…

Q: A sample of methane, CH4, occupies a volume of 318.0 mL at 25°C and exerts a pressure of 1010.0…

A: Answer: pressure of gas is 0.55 atm or 417.99 mmHg

Q: 26. An ideal gas occupies volume V at a temperature of 100°C. Up to how much will the volume of this…

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Q: 9. A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: Nitric acid is produced from nitric oxide, NO, which in turn is prepared from ammonia by the Ostwald…

A: Given- Reaction 4NH3 (g)   +   5 O2 (g)  ➜  4 NO (g)   +   6 H2O (g) Pressure = 2.00 atm Temperature…

Q: An 8.00-g sample of a gas occupies 22.4 L at 2.00 atm and 273 K. What is the molar mass of the gas?

A: Given that -  Mass of the gas = 8.00 g  Volume of the gas = 22.4 L  Pressure of the gas = 2.00 atm…

Q: A sample of xenon gas occupies a volume of 9.01 L at 477 K. If the pressure remains constant, at…

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Q: A balloon filled with helium gas is found to take 6 hours to deflate to 50% of its original volume.…

A: If the two gases (A&B) are at the same temperature and pressure, the ratio of their effusion…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A: Given: The total pressure (Ptotal) is 754 mm Hg The vapor pressure of water PH2O is 23.8 mm Hg The…

Q: .A sample of carbon dioxide occupies a volume of 6.70 liters at 105 kPa pressure. What pressure…

A: Given data, V1=6.70 LV2=3 LP1=105 kPa To calculate the new pressure.

Q: A sample of sulfur hexafluoride gas occupies 9.10 L at 198 °C.  Assuming that the pressure remains…

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Q: A sample of carbon dioxide has a mass of 14.0 g and occupies 2.5 L at 400.0 K. What pressure does…

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Q: A sample of argon gas occupies a volume of 866 mL at 28°C. What volume will the gas occupy at 50.7°C…

A: Answer: 931.3 mL volume occupy at 50.7°C

Q: A certain laser uses a gas mixture made up of 9.00 g HCl, 2.00 g H2 and 165.0 g of Ne. What pressure…

A: Given, Mass of HCl = 9.00 g Mass of H2 = 2.00 g Mass of Ne = 165.0 g Volume, V = 75.0 L Temperature,…

Q: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H20(g)…

A: 8.7 ) First we calculate moles of hydrogen gas , then we would use stoichiometry relation to…

Q: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose…

A: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose…

Q: 2. If 116.7mL of propane gas is released from a gas tank at 23°C, what temperature, in °C, would be…

A: Given,  Initial volume in mL = V1 = 116.7 mL  Initial temperature in 0C = T1 = 23 0C  Final volume…

Q: A balloon filled with helium gas takes 6 hours to deflate to 50% of its original volume. How long…

A: According to Graham’s law, if a mixture contains two gases, then the rate of effusion at constant…

Q: At a given temperature and pressure, Helium takes 4.98 minutes for a 1.5 L sample to effuse through…

A: Graham`s law of diffusion: the rate of effusion of a gas is inversely proportional to the square…

Q: Consider the chemical reaction:…

A: Consider the chemical   reaction:…

Q: Under constant-pressure conditions a sample of hydrogen gas initially at 21.00 ° C and 9.00 L is…

A: According to Charles law, the volume of a gaseous system is directly proportional to the absolute…

Q: Consider the reaction between 50.0 mL of liquid methanol (CH3OH; d=0.850g/mol) and 22.8 L of O2 at…

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Q: Consider the following chemical reaction: 2H2O(1) → 2H2 (g) + O2(g) What mass of H2 0 is required to…

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

Q: 3. A 0.334 g sample of an unknown halogen gas occupies 109 mL at 398 K and 1.41 atm. What is the…

A: The ideal gas equation describes the relationship between different parameters of a gas. These…

Q: Small amounts of oxygen can be generated by the thermal decomposition of KClO 3; 2 KClO 3(s) ↔ 2…

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Q: Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum…

A: Given data :

Q: A person accidentally swallows a drop of liquid oxygen, O2 (l), which has a density of 1.149 g/mL.…

A: Given: The density of oxygen=1.149g/mL The Volume of oxygen=0.050mL Calculate the mass of the drop…

Q: A person accidentally swallows a drop of liquid oxygen,O2(I), which has a density of 1.149 g/mL.…

A: The given data contains, density = 1.149 g/ml Volume = 0.050 ml Pressure = 1 atm Temperature = 37…

Q: Small quantities of hydrogen gas can be prepared in the laboratory by the addition of aqueous…

A: Given reaction is: Zn(s)  +  2HCl(aq)  →  ZnCl2(aq)  +  H2(g) Volume of H2  gas collected = 240 mL…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 28.8 g sublime (converts from solid to gas)…

A: According to ideal gas equation,  PV = nRT V = (nRT/P) n = moles = (given mass / molecular mass)

Q: A helium-filled balloon used in long-distance flying contains 420,000 ft3 (1.2  107 L) of helium.…

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

Q: A sample of nitrogen monoxide has a volume of 72.6 mL at a temperature of 16 Degrees Celsius and a…

A: P1 V1T1   = P2 V2T2    where  P1 = 104.1 Kpa x 0.00987 atm/1 kpa  =1.0274 atm             P2 = 99.3…

Q: References) Ethane burns in air to give H,0 and CO, 2 C,Ha(g) +7O,(8) 4 CO, (8) + 6 Hạ0(g) a What…

A: From ideal gas behavior at constant temperature and pressure – PV = nRTVn = RTPVn =constantV1n1…

Q: Consider the following chemical reaction: C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas…

A: C + H2O .....> CO + H2 Moles of C = 1.10 mol  P of H2 = 1.0atm T = 316K

Q: At what temperature will 60.0 g fluorine gas take up 4.80 L of space at 6.45 atm pressure?

A: Given: Mass of fluorine gas = 60.0 g Volume of space, V = 4.80 L Pressure of gas, P = 6.45 atm

Q: 2. A sample of helium occupies a volume of 2.5 L at a pressure of 525 kPa. If the temperature of the…

A: Suppose the given helium gas is an ideal gas. If temperature of the gas is kept constant new volume…

Q: A sample of xenon gas occupies a volume of 7.38 L at 459 K. If the pressure remains constant, at…

A: Given, Initially Volume (V1) = 7.38 L Temperature (T1) = 459 K Initially Volume (V2) = 4.20 L…

Q: Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum…

A:

Q: Silane, SiH4, reacts with 02 to give silicon dioxide and water: SH4 (g) + 2 O2(g)  SiO2 (S) + H2O…

A: Given: Pressure of SiH4 gas = 356 mmHg = 0.4684 atm Volume of SiH4 gas = 5.20 L Pressure of O2 gas =…

Q: Sodium metal reacts explosively with hydrochloric acid, HCl(aq), as shown in the following chemical…

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Q: 500 mL of a 1.52 mol/L solution of vinegar (acetic acid) is used to react with a 2.53 g sample of…

A: Given the molarity of acetic acid(CH3COOH) in the vinegar solution, C = 1.52 mol/L Volume of acetic…

Q: A balloon can be stretched to a maximum radius of 10.5 cm. The balloon is filled with 3.0 L of…

A: Given, Radius of the balloon = 10.5 cm Volume of the gas (V1) = 3.0 L P1 = 755 torr P1 = 431 mm Hg…

Q: 5.78 Nitric acid is produced from nitrogen monoxide, NO. which in turn is prepared from ammonia by…

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.