2K(s)+2H2O(l)→2KOH(aq)+H2(g) If 0.350 g of potassium reacts with an excess amount of water, what volume of H2 gas will be produced at 25 oC and 765 torr

Q: 5.78 Nitric acid is produced from nitrogen monoxide No which in turn is prepared from ammonia by the…

A: Moles of nitrogen monoxide can be calculated as: Moles=MassMolar mass

Q: Copper reacts with nitric acid according to the following equation. Cu(s)  +  4 HNO3(aq)  →…

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Q: Wetlands can play a significant role in removing fertilizer residues from rain runoff and…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The considered reaction is, MnO2 (s) + 4HCl (aq)→MnCl2(aq) + 2 H2O (l) +Cl2 (g)

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Number of moles of CO2 in the flask initially is calculated using Ideal Gas equation as follows,1…

Q: One compound under investigation for use as a lightweight rocket fuel is dimethylhydrazine (60.10…

A: Given reaction is  (CH3)2N2H4(l) + N2O4(l) -----> 3N2(g) + 4H2O(l) + 2CO2(g)  Mass of (CH3)2N2H4…

Q: Acetylenee gas can be produced by slowly reacting Calcium carbide with water. CaC2 (s) + 2H2O (l) →…

A: CaC2+2H2O→C2H2 +CaOH2moles of CaC2=mass molar mass=4564=0.70According to equation ,1 mol CaC2 form…

Q: Hydrogen was generated using aluminum metal and hydrochloric acid, according to the following…

A: 1mol of Al has mass of 26.98 g.772.5 torr = 1.0164 atm23.2+ 273K= 296.2KThe amount of Al is 5.005 g…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The problem based on stoichiometry and ideal gas equation.

Q: How long, in minutes, will it take 10.0 ml of H2 gas to effuse through a porous barrier if it has…

A: The time is to be calculated

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: According to ideal gas equation PV =nRT where P = pressure V= volume n = number of moles R = gas…

Q: (a) What is the total volume (in L) of gaseous products, measured at 3508C and 735 torr, when an…

A: a) Temperture (T)= 350°C=350+273=623K Pressure P =735 Torr=735760=0.967atm. mass of C8H18=100g…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Welcome to bartleby !

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2…

A: Calcium hydride, CaH2, reacts with water to form hydrogen gas. Chemical reaction: CaH2(s) + 2 H2O(l)…

Q: Hydrogen sulfide gas (H2S, 34.08 g/mol) can be produced from the reaction of aluminum sulfide (MW =…

A: The reaction given is  Hence from the above reaction we can see that 1 mole of Al2S3 will react to…

Q: Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3 N2 . Magnesium…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: The total mass of the mixture = 6.35g Consider the mass of BaO and MgO in the unknown sample be 'x'…

Q: Acetylene gas can be produced by slowly reacting Calcium carbide with water. CaC2 (s) + 2H2O (l) (…

A:

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

A: Given data, Volume 2.20 L Molarity = 1.20 M Temperature=250C+ 273 = 298 K Decomposition reaction:…

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Convert the given temperature that is 30 degree Celsius in kelvin as shown follows:T (K) = (30 +…

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Given the total mass of BaO and MgO = 6.35 g Let number of moles of BaO = a number of moles of MgO =…

Q: Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal…

A:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given,Volume of Cl2 gas, V = 175 mL = 0.175 L    (1 mL = 0.001 L)Temperature, T = 25 °C = (25 + 273)…

Q: Sulfur is used in the production of vulcanized rubber, detergents, dyes, pharmaceuticals,…

A: 1. 1 mol of any gas = 22.4 L (at STP) 2. 1 m3 = 1000 L…

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

A: The equation is:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas:  CaH2(g) + 2 H2O(l) ---> Ca(OH)2(aq)…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) ⟶ MnCl2 (aq) + 2 H2O (l)…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: 10) Iron nail rusts when exposed to oxygen.4Fe(s) + 3 O2(g)2 Fe2O3(s) a)What volume of oxygen gasat…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: Consider the formation of chlorine gas, from household bleach (sodium hypochlorite) and hydrochloric…

A: The given reaction is, NaClO (aq) + 2 HCl (aq) → Cl2(g) + H2O (l) + NaCl (aq) The given parameters…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Pressure = 765 Torr Volume = 405 mL = 0.405 L Temperature = 25°C = 298 K  Mass of MnO2 required =?

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given,Volume of chlorine to be obtained = 215mLTemperature = 250C.Pressure = 765 torr.

Q: 2K(s)+2H2O(l)→2KOH(aq)+H2(g) If 0.497 grams of potassium reacts with an excess amount of water,…

A: Answer :- 160.27 mL of H2 will be produced. Solution :-  Balanced chemical reaction between…

Q: A sample of NaNO3 is partially decomposed by heating, producing O2 gas that is collected safely over…

A: When a gas is collected over water, some water vapors are also present along with the gas. In this…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (l) → Ca(OH)2 (aq)  +…

A: According to ideal gas law, PV = nRT where P = pressure in atm = pressure in torr / 760…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: The volume of carbon dioxide produced in the combustion of 538 mol of octane at 22.0 oC and 0.995…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: In this question, we want to determine the mass of MnO2(s) means how much it is.  How to calculate…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH₂ (s) + 2 H₂O (1) - Ca(OH)2 (aq) +…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The ideal gas equation shows the relation between pressure, volume, temperature and no of moles of…

Q: What volume of hydrogen at 27 °C and 72 torr may be prepared by the reaction of 8.88 g of gallium…

A:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Mole Concept problem and Question is solved as per question need

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: The conversion of temperature into Kelvin units and pressures into at units can be done as,

Q: What volume of hydrogen at 27 °C and 72 torr may be prepared by the reaction of 8.88 g of gallium…

A:

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g)…

A: The given chemical balanced equation as follows:

Q: Calcium carbide (CaC2) reacts with water to produce acetylene (C,H2), according to the following…

A: Given data contains, Volume V1 is 64.5 L. Temperature T1 is 50°C 323.15 K. Temperature T2 is…

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.