A laboratory technician forgot what the color coding on some commercial cylinders of gas meant but remembered that each of two specific tanks contained one of the following gases: He, Ne, Ar, or Kr. Measurements at STP made on samples of the gases from the two cylinders showed the gas densities to be 3.74 g/L and 0.900 g/L. (a) Determine by calculation which of these gases was present in each tank.  (b) Could this determination be made if the densities had been at a temperature and

Q: 1.5002 L of an ideal gas weighs 6.8390 g un der STP. Which of the following could be the gas?…

A:

Q: (a) The pressure of the gas if 0.145 mol occupies 237 mL at 25°C. atm (b) The temperature (in…

A: From ideal gas equation -  PV = nRT  Where -  P = pressure  V = volume  n = number of moles  R =…

Q: 3 non-reactive gases are mixed and have the following partial pressures. Gas A = 2.3 atm, Gas B =…

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

Q: A mixture of gases contains 2.08 g of CO, 4.02 g of Xe, and 7.90 g of N2O. What is the partial…

A: option c correct From the Ideal Gas Lawp × V = n× R × Tn = mMp=m× R× TM ×Vwhere p= pressurem=massM=…

Q: Automobile airbags are inflated by the rapid decomposition of sodium azide (NaN3). 2 NaN3(s) --> 2…

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Q: Find density of a gas inside a metal cylinder that contains 0.76 moles of C4H8 gas at 273°C and 2.00…

A: The objective of the question is to find the density of a gas inside a metal cylinder that contains…

Q: Consider separate 1.0 liter gaseous samples of N2, Ar, CH4, and CO2 all at STP. (a) Rank the gases…

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Q: Calculate the following quantities for an ideal gas: The absolute temperature of the gas at which…

A: Given, Number of moles of gas = 3.75 x 10-3 moles Temperature = ? Pressure of gas = 0.945 atm Volume…

Q: Find density of a gas inside a metal cylinder that contains 0.76 moles of C4H8 gas at 273°C and 2.00…

A: The objective of the question is to find the density of a gas inside a metal cylinder that contains…

Q: Use both the ideal gas law and van der Waals’ equa- tion to calculate the temperature of water vapor…

A: Van der Waals equation is used for real gases.  This equation relates the temperature, pressure,…

Q: A 10.0 L tank at 7.69 °C is filled with 10.8 g of sulfur tetrafluoride gas and 2.28 g of dinitrogen…

A: We have to calculate the mole fraction, partial pressure and total pressure.

Q: Consider the reaction of 1.41 g Ca(s) with 107 mL of 0.325 M HBr(aq) according to the following…

A: The reaction taking place is given as, => Ca (s) + HBr (aq) -----> CaBr2 (aq) + H2 (g) Given :…

Q: A gas originally at 27 °C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure…

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Q: For an ideal gas, calculate the following quantities. (a) The pressure of the gas if 0.155 mol…

A: The ideal gas law equation is:PV = nRTwhere:P is the pressure of the gas .V is the volume of the gas…

Q: A mixture of neon and hydrogen gases contains neon at a partial pressure of 231 mm Hg and hydrogen…

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Q: What mass of Mg and what volume of 1.50 M HCI are required to make 62.3 L of H₂ gas at a temperature…

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Q: The density of a gas is 2.07 g/L at a temperature of 22 ∘C and a pressure of 0.781 atm . Calculate…

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

Q: For an ideal gas, calculate the following quantities. (a) The pressure of the gas if 0.145 mol…

A:

Q: 25 g of hydrogen chloride have been treated with 50 g of manganese dioxide, obtaining manganese (II)…

A: Volume of chlorine obtained is: 4.31 LExplanation:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: A high altitude balloon is filled with 1.41 x 10* L of helium gas at temperature of 21° C and 1.00…

A: Using the ideal gas law equation to solve both.  PV = nRT Where,  P= pressure V = volume n= moles R…

Q: A mixture of xenon and oxygen gases contains xenon at a partial pressure of 195 mm Hg and oxygen at…

A: Given: Partial Pressure of Xenon =195mm Hg The partial pressure of Oxygen= 656 mm Hg To calculate:…

Q: A mixture of gases contains 3.46 g of SO2, 5.53 g of H2, and 1.50 g of O2. What is the partial…

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Q: (a) A piston at 8.3 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A: Recall the given expression of Boyle's Law at constant temperature…

Q: (c) A piston at 3195 torr contains a gas that occupies a volume of 4.7 L. What pressure would have…

A: Boyle's Law: At constant temperature, the pressure of an ideal gas is inversely proportional to the…

Q: A 7.00 L tank at 29, °C is filled with 6.44 g of chlorine pentafluoride gas and 13.6 g of boron…

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Q: A mixture containing 2.21 g each of CH4(g), C,Ha(g) and CaH,o(g) is contained in a 1.50 L flask at a…

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Q: Consider the reaction of a mixture of NaHCO3 and Ca(HCO3)2 with excess HCl. The net ionic reaction…

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Q: A 44.0 L metal cylinder stores a sample of gas at 6 °C under 1.02 atm. The temperature of the…

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

Q: What is the mole fraction of Ne in a gas mixture that contains 0.349 mol Ne and 0.529 mol total?…

A: Since, Mole fraction of the atom or species is the ratio of moles of the atom or species to the…

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

Q: Given the ideal gas law PV=nRT calculate the pressure of a gas in atmospheres if 14 moles of the gas…

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Q: An ideal gas originally at 0.87 atm and 68°C was allowed to expand until its final volume, presSure,…

A: The volume can be calculated by using following formula. P1V1T1=P2V2T2

Q: The van der Waals constants a and b are 5.489 L2 atm mole-1 and 0.0638 L mole-1 for C2H6. (a)…

A: Given, Vander Waals constant ,  a=5.489L2 atmmol2b=0.0638Lmol

Q: 11.) A mixture of neon and krypton gases contains neon at a partial pressure of 312 mm Hg and…

A: Mole fraction = total pressure/ partial pressure Total pressure = 312+446 = 758 mmHg

Q: A scuba diver’s tank contains 0.30 kg oxygen (O2) compressed into a volume of 2.32 L.(a) Use the…

A: The equation that gives the relationship between the pressure, temperature, volume and number of…

Q: A mixture of xenon and methane gases contains xenon at a partial pressure of 354 mm Hg and methane…

A: Partial pressures of xenon and methane are given. We have to calculate the mole fractions of Xe and…

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.