A gas sample is collected in a special gas sampling bag that does not react with the pollutants collected but is free to expand and contract. When the sample was collected, the atmospheric pressure was 103.0 kPa. At the time the sample was analyzed, the atmospheric pressure was 100.0 kPa. The bag was found to contain 0.020 ppm of SO2. Would the original concentration of SO2 be more, less, or the same? Explain.

Q: The composition of the atmosphere is relatively constant, with the exception of humidity; the amount…

A: (a) Dalton's law states that the total pressure of a mixture of gaseous mixture is the sum of…

Q: Calculate the volume of the sample ar constont

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Q: Convert 287 kPa to atm 287   kPa

A: As we know that, 1 kPa = 1000 Pa Therefore, 287 kPa = 287 × 1000 Pa = 287000 Pa   Also, 1 atm =…

Q: Ammonia, NH3, is formed in the following reaction N2(g) + 3H2(g) → 2NH3(g) N2 and H2 where…

A: According the given chemical equation ICE table is drawn below where p defines partial pressure.

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

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Q: HOX+130 = 0) 7. The air pressure for a certain tire is 109 kPa. What is the pressure in atmospheres?

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Q: At an altitude of 11,000 m (a typical cruising altitude for a jet airliner), the air temperature is…

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Q: A sample of gas contains 5.25 moles at 37.8 °C in a volume of 3.61 L. If 2.67 moles of gas are…

A:

Q: Calcium carbonate, CaCO31s2, the principal compound in limestone, decomposes upon heating to CaO(s)…

A: Given, P = 1.3 atm V = 250 mL T = 310C

Q: Consider the reaction between solid zinc and hydrochloric acid where hydrogen gas is collected over…

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Q: A sample of O2 with a pressure of 1.53 atm and a volume of 239 mL is allowed to react with excess NO…

A: The combined gas law is given by

Q: A helium-filled weather balloon has a volume of 584 L at 16.9°C and 755 mmHg. It is released and…

A:

Q: The following reaction is used to generate hydrogen gas in the laboratory. If 340.6 mL of gas is…

A: The volume of H2 = 340.6 mL = 0.3406 L Pressure of H2 gas collected = 748 mm Hg The pressure of H2…

Q: A sealed can of your favorite soda has a carbon dioxide gas (CO2) volume of .05 L. When it is…

A: 1) A sealed can carbon dioxide gas (CO2) volume V1=0.05 L. 2) The pressure is, P1 207 kPa. 3)…

Q: The reaction 2KCIO3 (s) 2KCI (s) + 302 (g) represents a common laboratory procedure for producing…

A: Given: Pressure = 760 torr = 1.0 atm Temperature = 0 oC = 273.15 K

Q: A sample of magnesium metal reacts completely with an excess of hydrocholoric acid: Mg(s) + 2…

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Q: In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and…

A: Temparature= 293K  Total pressure= 753.9mmHg  Total volume of gas=1.01L  The partial pressure of…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

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Q: Thermal decomposition of nickel tetracarbonyl produces pure nickel metal and carbon monoxide gas…

A: given - mass of Ni (CO)4 =775 g temperature = T = 21oC = 21+ 273 = 294 K pressure =P =533 mm Hg =…

Q: A sample of gas contains 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) and occupies a volume of 18.4…

A: Given information: 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) volume of 18.4 L at reactant side…

Q: In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and…

A: The temperature of oxygen gas .The pressure of oxygen gas .The volume of oxygen gas To find the mass…

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: The given reaction is as follows:

Q: A sample of gas contains 0.1700 mol of C₂H4(g) and 0.1700 mol of H₂O₂(g) and occupies a volume of…

A: Given :  Moles of C2H4 = 0.1700 mol  Moles of H2O2 = 0.1700 mol  Total volume = 11.5 L

Q: In the fermentation of glucose (wine making), 760 mLmL of CO2CO2 gas was produced at 31 ∘C∘C and…

A: Given :  initial pressure = 1.20 atm  initial volume = 760 mL  initial temperature = 31°C  final…

Q: A student weighs out 0.0422 g of magnesium metal. The magnesium metal is reacted with excess…

A: The balanced reaction of Mg with HCl is as follows: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) Calculation of…

Q: A 515 mL sample of gas is collected at a temperature of 22.0°C and is kept at 122 kPa. The volume…

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Q: The reaction of metallic aluminum with aqueous hydrochloric acid produces hydrogen gas. 2 Al(s) + 6…

A: The balanced reaction taking place is given as,

Q: A sealed can of your favorite soda has a carbon dioxide gas (CO2) volume of 0.05 L. When it is…

A: In the question given, we are given that the temperature is constant and hence we follow boyle's law…

Q: 2. If the excess salt is dissolved in water, it will reform carbamic acid. At 350K, carbamic acid…

A:

Q: a) 1.488×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 81.2 s. Under…

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

Q: onsider the following reaction: 4A(s) + 2B(g) → 2C(l) + 3D(g) 18.4 g of A (MM = 71.096 ) is added…

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Q: At 250 kpa 309K, a sample of gas has a volume of 4.2 L. How many moles of gas are present?

A: The ideal gas equation is  PV = nRT  P = pressure in kPa V = volume in Litres  n = moles  R = gas…

Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially…

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Q: An unknown compound (A) is decomposed according to the reaction given below. One of the gas…

A: Given: The final volume of the gas sample is 1565 mL. The pressure is 765 torr. The temperature is…

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

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Q: In some aquatic ecosystems, nitrate (NO3–) is converted to nitrite (NO2–), which then decomposes to…

A: The equation is:

Q: As part of the rock analysis, a student added hydrochloric acid to a rock sample and observed a…

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Q: When excess water is added to a mixture of citric acid and sodium bicarbonate present in a bath…

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Q: Describes how the Covid-19 virus can spread rapidly in an aircraft cabin using appropriate gas laws.

A: The COVID-19 pandemic is one of the most significant worldwide health and financial crises in modern…

Q: What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N, gas when…

A: Given The decomposition of NH4NO2 is - NH4NO2 (aq)→N2 (g) + 2H2O (l) concentration of NH4NO2 , C =…

Q: Some fire extinguishers spray gas pressure generated by the reaction of baking soda with sulfuric…

A: The balanced reaction between baking soda and sulphuric acid is : NaHCO3(aq)+H2SO4(aq) →…

Q: 5. A 75.0 mL flask contains 0.1477 g of a volatile oxide of carbon. The pressure in the flask is…

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Q: If pressure is expressed in atmospheres and volume is expressed in liters, PAVhas units of Latm…

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Q: A reaction between liquid reactants takes place at 33.0 °C in a sealed, evacuated vessel with a…

A: Given, Temperature of vessel, T = 33.0 oC = 306 K Volume of Vessel, V = 20.0 L Mass of carbon…

Q: Consider the following reaction taking place at constant T and V: N2(g) + 3 H2(g) → 2 NH3(g) You…

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Q: MISSED THIS? Read Section 6.7 (Pages 235-238); Watch IWE 6.12. Carbon monoxide gas reacts with…

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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.