Moles in 245g of Fe2O3.

Q: Assume that a single cylinder of an automobile engine hasa volume of 524 cm3. (a) If the cylinder is…

A: a) Since PV = nRT  where P = pressure in atm = 0.98  V = volume in lit = 524 / 1000 = 0.524 T =…

Q: what is the number of mole of co2 produced when .0200 mol c2h2 burns?

A: A chemical equation can be represented by using symbols and formulas of the participating species.…

Q: How many moles of Calcium carbonate and Oxygen are needed to remove 1.35 x10 gas of sulfate from the…

A: Mass of SO2 gas emitted = 1.35 × 106 g Molar mass of SO2 = 32 + 2(16) g/mol = 64 g/mol  Moles of SO2…

Q: When 3.00 L of propane gas is completely combusted toform water vapor and carbon dioxide at 350°C…

A: Solution- The chemical reaction- C3H8 + 5O2→3CO2+4H2O  Temperature =350 oC Pressure = 0.990 atm…

Q: How many liters of CO2 are produced when 3.46 Fe2O3 is converted to cast Fe at STP?

A: The ideal gas equation is given by, PV=nRT where P is the pressure, V is the volume, n is the number…

Q: If 443 mL of 2.61 M HCl reacts with an excess amount of Na,CO3, what volume of CO, gas STP will be…

A:

Q: A) If 0.50 L  of gaseous CH4 is burned at STP, what volume of O2 is required for complete…

A: During combustion, CH4 reacts with excess O2 and the balanced chemical equation for this reaction is…

Q: How many moles of N ar in 0.241g of N   O?…

A: Number is moles of a substance refers to the ratio of mass of the substance to its molecular mass.…

Q: Calculate the number of grams of SO2 that must react to produce 350. g of SO3.

A: 2SO2 + O2 ---------> 2SO3 Given weight of SO3, W(SO3) = 350 g Molecular weight of SO3, Mwt(SO3) =…

Q: Calculate the percentage (%) of C and O in C5H10N2O3

A: Mass percentage of an element= (mass of element in one mole of compound/mass of compound)×100 Given…

Q: How much mass is required to make 7g of NH; saturated at 145g H,O at 10°C?

A:

Q: Given that 0.150 L of nitrous oxide at 25 degrees Celsius and 749 mmHg pressure , calculate the…

A: Given, Volume of a gas (V) = 0.150 L Temperature (T) = 25°C = (25 + 273.15) K = 298.15 K Pressure…

Q: Sodium carbonate reacted with concentrated hydrochloric acid at 25.0 C and 1140 mmHG . How many…

A:

Q: What is the percentage composition of C6H12O6

A: Glucose composition  means that carbon, hydrogen and oxygen are present in the ratio 1 : 2 : 1 in…

Q: How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 99.1…

A: Balanced Reaction 4 H2 + CO2 --> CH4 + 2 H2 O   Moles of water vapor produced = 99.1 mol 2 mol…

Q: How many grams of CC are required to react with 34.3 gg of Fe2O3Fe2O3?

A: The reaction of C with Fe2O3 is as follows: Fe2O3 + 3C →2Fe + 3CO

Q: What is the mass of C2H6  in a sample with a volume of 15.6L at STP

A: Given :- volume of C2H6 gas = 15.6 L  To calculate :- mass of C2H6 (in g)  at STP ;   1 mol gas =…

Q: P4(g) + Br2(g) --> PBr3(g) What volume of bromine gas at 20 oC and 789 mmHg must be used to…

A: Since molar mass of phosphorus tribromide = 270.7 g/mol Hence moles of phosphorus tribromide to be…

Q: How many grams of oxygen are needed to burn 25.0g of C4H10?

A: 2C4H10 + 13O2 → 8CO2 + 10H2O C4H10 + (13/2)O2 ---> 4CO2 + 5H2O Number of moles of butane  = 25.0…

Q: If 2.57 g of argon gas occupies a volume of 4.15 L, what volume will 1.42 mol of argon occupy under…

A: Given, Initial volume, v1 = 4.15 L Mass of first sample of argon gas = 2.57 g Number of moles of…

Q: The density of a certain gaseous fluoride of phosphorus is 3.93 g/L at STP. Calculate the molar mass…

A: Density of a gas can be expressed as, d=PMRT where P is pressure, M is the molar mass, R is the…

Q: What volume of N, measured at 24 °C and 733 mm Hg, will b produced by the decomposition of 11.4 g…

A: Given :-  2NaN3(s) → 2 Na(s) + 3 N2(g) amount of NaN3 = 11.4 g  temperature = 24°C  pressure = 733…

Q: the addition of 100g of a compound at 750 g of CCL4 caused a cryoscope lowering of 10.5 K. Calculate…

A: When a non-volatile solute is added to a solvent, the freezing point of a solvent decreases and this…

Q: what is the density in g/L (STP) of SO2?

A: Density is defined by the ratio of mass to the volume. it is expressed in mathematically is as…

Q: what volume of NH3 at STP is produced when 32 g of N2 is reacted with an excess of H2?

A:

Q: how many grams of carbon are needed to react completely with 4.75g of fe2o3 ?

A: Number of moles = mass/molar mass  Molar mass of Fe2O3 = 159.688 g/mol  Mass of C = moles of C ×…

Q: 12.2p. Assuming air is about 79% nitrogen (N2) and 21% oxygen (O2), calculate the average molar mass…

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Q: A gaseous compound has a density of 2.84 g/L at 1.00 atm and 45oC. What is the molar mass of the…

A:

Q: ____ NaHCO₃, → ____ CO₂ + ____H₂O + _____Na₂CO₃  Suppose you want to produce 2.00 L of CO2 at STP…

A:

Q: Given the following reaction: CuO (s) + H2(g) ®Cu (s) + H2O (g) If 250. L of hydrogen gas are used…

A:

Q: A balloon flying a long distance contains 1.2 x 107 L of helium. If the helium pressure is 737 mmHg…

A: Given, Pressure (P) = 737 mmHg = 0.97 atm Volume (V) = 1.2 × 107 L Temperature (T) = 25°C = (25 +…

Q: what is obtained when CaC2 is heated in nitrogen at 1000 degree celsius ?

A:

Q: 2) How many moles of oxygen gas are required to fully consume 18.0 g of magnesium metal, producing…

A: 2Mg    +     O2      ------->    2MgO 2*24         32g                2(24+16) =48g…

Q: There are 20 kg of exhaust gas formed per kg of fuel oil burned in the combustion of diesoline…

A:

Q: What volume at STP is occupied by 0.682 g of BCl3(g)

A: Molar mass of BCl3 , Mwt = 117.17 g/mol Given weight, W = 0.682 g Moles = W ÷ Mwt = 0.682 ÷ 117.17 =…

Q: Calculate the mL of oxygen produced from 0.475 g of potassium chlorate at STP. 2KClO3 ⟶⟶ 2KCl + 3O2

A: Given that : Mass of KClO3 = 0.475 g The molar mass of KClO3 is 122.55 g/mol

Q: Calculate the average m mass fraction from its 21% O2.

A: Let total moles of air = 100  So no. of moles of N2 gas = 79 no. of moles of O2 gas = 21

Q: How many liters of oxygen gas are needed to react with 1.3 x10 23  molecules of glucose?

A: The reaction of glucose with oxygen: C6H12O6  +  6O2  →  6CO2  +  6H2O So, 1 mole of glucose reacts…

Q: Dinitrogen monoxide causes depletion of ozone in the in the stratosphere. Different sources of N20…

A: The major sources of N2O in the atmosphere are microbial processes in the soil and to alesser extent…

Q: 2Fe2O3+3C-4Fe+3CO2 The mole ratio for Fe2O3 to CO3 is what in fraction form

A: Stoichiometry refers to relationship between various quantities (mass, moles, equivalents) that are…

Q: A 2.50-L sample of a colorless gas at STP decomposed to give 2.50 L of N2 and 1.25 L of O2 at STP.…

A: Volume at STP means the volume at standard temperature and pressure. The temperature is 273 K and…

Q: Calculate the volume of nitrogen dioxide gas in mL required to make 10.0 g nitric acid at STP. 3NO2…

A: One mole of any gas at STP occupies ----   22.4 L or 22400 mL of volume. Use the balanced chemical…

Q: At 72.5oC and 1.89 atm, 8.14 g of a hydrocarbon vapor has a volume of 2.26 L. What is the molecular…

A: Temperature, T = 72.5 °C  = (72.5 + 273.15) K                          = 345.65 K Pressure, P = 1.89…

Q: What volume of oxygen at STP is required for the complete combustion of 55.0 g of butane, C4H10? 2…

A: Given, mass of butane = 55.0 g

Q: Determine the volume of CO2 obtained from the combustion of 145 g propane, C3H8 (at 1741 mmHg and…

A:

Q: Nitric acid can be prepared by bubbling nitrogen peroxide into water. How many moles of H+ are…

A: Given : Nitric acid i.e HNO3 is producing by bubbling nitrogen peroxide i.e N2O5 into water i.e H2O.…

Q: Calculate the average molecular weight of air from its molar composition of 79% N2and 21% O2and (2)…

A: Given information:Molar composition of nitrogen (N2) = 79 %Molar composition of oxygen (O2) = 21…

Q: Suppose 295 gof NO3 flows into a swamp each day. What volume of N2 would be produced each day at…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".