(Q29) How many grams of solid potassium chlorate (KCIO3) decompose to form solid potassium chloride and 661 mL of oxygen gas at 115 °C and 773 torr? (3 sf)

Q: A 0.480-g sample of a gaseous compound occupies 367 mL at 45 °C and 365 mmHg. Which of the following…

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Q: IRelerences Use the References to access Important values Iir needed for this question. A sample of…

A: Given :  Moles of Krypton = 3.54 mol  Temperature = 56 °C = 329 K

Q: The human body burns glucose (C,H,,0,) for energy according to this chemical reaction: C,H1206+60,→6…

A: Given the density of CO2 = 2.0 kg / m3 = 2 x 10-3 Kg / L When 500 mL of air is exhaled, 4 % volume…

Q: What volume of hydrogen gas is produced when 8.82 g of sodium reacts completely according to the…

A: Given,  sodium (s) + water(l) -----> sodium hydroxide (aq) + hydrogen(g)  The mass of sodium =…

Q: When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas.…

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Q: There are two particles, one is heavy and the other is light. The light particles diffuse faster…

A: Graham's law of effusion : This law states that the rate of diffusion /effusion of any gas is…

Q: Lithium hydroxide, LIOH, is used in spacecraft to recondition the air by absorbing the carbon…

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Q: . What is the volume occupied by 2.98 g of argon at 75 °C and 7.12 atm? Pu=nRT xרס orjon m= 2.983 T:…

A: 1. PV = nRTV = nRTP = 2.98g × 1mol39.948g × 0.08206 L⋅atm⋅K-1⋅mol-1 ×348.15K 7.12atm…

Q: Tin(IV) chloride is used as an external coating on glass to toughen glass containers. It is prepared…

A: Solution AIM: The mass tin and volume of chlorine gas should be calculated.. Concept introduction:.…

Q: Edmund Hillary became the first documented mountaineers to summit Mt E it. Given that Everest is…

A: 0.18 is the correct answer. B option is correct.

Q: Greenhouse Effect od A student pre pared 2.00L of 0.100 M Naco Lmaleular mass best pncedur is to…

A: Dear student, we answer only one  question at a time. So we are answering only 1st question. If you…

Q: If 8.00 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of…

A: 2FeS +3H2O g →Fe2O3 S+3H2gUsing PV=nRTwhere n= n° of moles of H2OWe can calculate first number of…

Q: if P = 782mm Hg, V = ? (L), n = 0.210 mol, T = 27.0 degrees celsius (ideal gas)

A: For Ideal gas      Patm  VL=nmoles×R atm Lmol.K×TK      P= pressure atm     V=volume L      n=moles…

Q: 3 RT speed = V M %3D = 8.314 J/ (mol-K) and M is molar mass in kilograms per mole. Note that a joule…

A: rms speed = (3RT/M)1/2 For F2 molecules,  M = 38 g/mol = 38×10-3 Kg/mol So, rms speed= =…

Q: Acid precipitation dripping on limestone produces carbon dioxide by the following reaction: CaCO3…

A: Given, Volume of ethane CO2 produced = 15.5 mL = 0.0155 L   (1 mL = 0.001 L) Pressure, P = 753.0 mm…

Q: In the combustion C6H6O2, what is the value of the slope expected for a) a plote of moles of C6H6O2…

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Q: A 4.8 g sample of a gaseous oxide of nitrogen occupies a volume of 2.0 L at 25°C and 720 mmHg. What…

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Q: From 2 NaN, -> 2 Na + 3N- If we start with 13 g of NaN, What will be the volume at STP of N, ?

A: Given data :    Then mass of NaN2 = 13 g  If reaction starts then the volume of N2 at STP is = ?…

Q: 19. Vent pipes at solid-waste landfills often emit foul-smelling gases. A sample of such cmissions…

A: Ideal gas equation is PV = nRT PV = wMRT       [ moles(n) = mass (w)molar mass (M) ] PM = wVRT PM =…

Q: As the temperature is raised from 20°C to 40°C, the average kinetic energy of neon atoms changes by…

A: Given T1 = 20°C T2 = 40°C

Q: 3. A plastic tank containing a gas of 7.8 L and 5.35 atm at 7 °C weighs 96 g. If the empty tank…

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Q: 8. Life rafts and weather balloons can be inflated by the reaction shown below: CaH2 (s) +2 H2O (1)…

A: Since, you have asked multiple questions. So I will solved first question for you.  You can see the…

Q: 10. Which of the following statements is incorrect?

A: A) A concentration cell or an electrolytic cell composed of 2 half-cells  with identical electrodes,…

Q: 1. Allicin is the compound responsible for the characteristic smell of garlic. An analysis of…

A: Empirical formula is equal to the simplest ratio of elements present in molecular formula. Example:…

Q: According to kinetic - molecular theory in which of the following average geuses the energy of the…

A: The average kinetic energy of the gas molecule is directly proportional to the absolute temperature…

Q: In the presence of nitric acid, UO2+ undergoes a redox process. It is converted to UO2 2+ and nitric…

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Q: What is AStot (in )for 4 moles of a substance at 93°C cooling to 32°C at constant pressure? Helpful…

A: Here we have to calculate ∆S total to convert 4 moles of a substance from 93°C to 32°C by cooling at…

Q: rms speed: m/s What is the rms speed of He atoms at 365 K? rms speed: m/s

A: rms for He is higher tha Cl2

Q: 7.50 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of iron(III)…

A: At first we need to determine the moles of water vapour from the ideal gas law : PV = nRT Then we…

Q: A flask of ammonia is connected to a flask of an unknown acid HX by a 1.92 m glass tube (where "X"…

A: Given : A flask of Ammonia and a flask of HX acid are connected by a 1.92 cm glass tube. The product…

Q: In the decomposition of potassium chlorate 11.207 liters of Oxygen are generated. If the oxygen was…

A: 1) Given : Volume of oxygen produced  = 11.207 L Pressure = 1 atm. And temperature = 273 K

Q: 1. Chromium and magnesium oxide are formed by reacting 75 g of chromium (III) oxide and 59 kg of…

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Q: 3. Complete the following statements by choosing the correct word to fill in the blank. At constant…

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Q: Water, H2O, is produced industrially by the following reaction: 2H2(g)+O2(g) à 2H2O(l) What volume…

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Q: A 1.75 g sample of magnesium and iron is added to dilute hydrochloric acid, producing 1.1 L of…

A: Mass of the sample = 1.75 gvolume of H2 gas produced = 1.1 L at these conditions, T = 28.5oC = 28.5…

Q: If 5.50 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of…

A: Assuming water vapours to behave as an ideal gas, ideal gas equation will be used to calculate the…

Q: ered 6 oxygen and 18 oxygen have?

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Q: One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with…

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Q: Ethanol (C₂H6O) burns in air C₂H6O(1) +O2(g) → CO2(g) + H₂O (1) Balance the equation and determine…

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Q: A sample of Nitrogen gas occupies a volume of 375.5 mL at 77.8°C. What volume will it occupy at…

A: The volume occupied by Nitrogen gas at 77.8°C (T1) = 375.5 ml = V1 The volume occupied by Nitrogen…

Q: Calculate the kinetic energy of  53  moles of N2 at 262 °C. (R = 8.314 JK–1 mol–1)

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Q: A 1.47 g sample of a gaseous oxide of nitrogen occupies a volume of 1.23 L at 35°C and 763 mmHg.…

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Q: Determine the number of molecules of oxygen (0₂) required to complete the following chemical…

A: Given reaction: N2 + O2 → 2NO2 We have to find the number of molecules of O2 that are required to…

Q: Lithium reacts with nitrogen gas according to the reaction: 6 Li(s) + N2(g) -------> 2 Li3N(s)…

A: Given: 58.5 mL of N2 gas at STP   The reaction is given as follows: 6Li(s) + N2(g) ------->…

Q: You have a compound that is 79.9% C and 20.1% H by mass. b. If 3.68 g of the compound is turned to…

A: Given: Mass percent composition of carbon is 79.9%. Mass percent composition of hydrogen is 20.1%.…

Q: 2. Suppose 71.0 mL of dioxygen gas are produced by this reaction, at a temperature of 50.0 °C and…

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Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) ->…

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

Q: PV=nRT R=0.0821 atm•L/mol•K °C + 273.15 = K 1 atm = 760 mmHg Many metals produce hydrogen gas when…

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Q: A Porticn cf the Sun's ener9y ccmes From tte reacticn 4H He t 29e which requires a temperatiore of…

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Q: ons/17136 V/suonsənb/əxeı/6 177 1. This is the data sheet for Molar mass of vapor; 1. Unknown Liquid…

A: The division of mass/weight of known compound and that compound's moles defines the molar mass for…

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.