An herbicide is found to contain only C, H, N, and Cl.The complete combustion of a 100.0-mg sample of theherbicide in excess oxygen produces 83.16 mL of CO2 and73.30 mL of H2O vapor expressed at STP. A separate analysisshows that the sample also contains 16.44 mg of Cl.(a) Determine the percentage of the composition of thesubstance. (b) Calculate its empirical formula. (c) Whatother information would you need to know about thiscompound to calculate its true molecular formula?

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: 35L of butene (CAH9) undergoes combustion at STP in the presence of excess oxygen. Write the…

A: Given,  3.5 L of Butane undergoes combustion of excess oxygen.

Q: If 7.68 gram of phosphorous solid is mixed with 1.00 L of Chlorine gas at STP to form P2Cl5…

A: It is given that 7.68 grams of phosphorous is reacting with 1L of chlorine gas at STP to release…

Q: mol sample of a hydrocarbon, CxHy, gives 1.680 L of CO2 at STP and 1.351 g of H2O. (a) What is the…

A: Volume of CO2 = 1.680 L Moles of CO2 = Volume/22.4       = 1.680/22.4      = 0.075 mol So, moles of…

Q: For the reaction C+O2 =CO2 what volume of O2 gas at 25.0 degrees Celsius and 1.02 atm is required to…

A: Consider the given balanced equation as; C + O2 → CO2     Given information is as follows;…

Q: (II) A box of volume V contains n, moles of oxygen (0₂) and n₂ moles of nitrogen (N₂). The partial…

A: Given that   volume = V   number of moles of oxygen gas = n1   number of moles of nitrogen gas = n2…

Q: Potassium peroxide is used to absorb the CO2 produced by the people in a space vehicle. 2K2O2 + 2CO2…

A: Moles of the carbon dioxide is equal to moles of K2O2 . If we can find moles of carbon dioxide we…

Q: How many liters of hydrogen gas would be produced by the reaction of 44.6 g of Al with excess HCl at…

A:

Q: (A) 2NaNO3 + (NH4)2SO4 → NA2SO4 + 2N20 + 4H2O At 1.5 atm and 150 °C, 500 mL of N20 was produced.…

A:

Q: What mass of potassium carbonate is required to react with nitric acid to produce 175 mL of carbon…

A: Potassium carbonate reacts with nitric acid to form potassium nitrate, water, and carbon dioxide.…

Q: 89.) Ammonia and chloride NH, (a)+ HCI(a)'-NHyCI(s) If 4.21L of NiHgcg) 5.35L af HCIca af 26°c and…

A:

Q: Use the References to access important values if needed for this question. Sodium metal reacts with…

A:

Q: How many liters of hydrogen gas would be produced by the complete reaction of 2.93 g of Al at STP…

A: To find volume of H2

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

A:

Q: In a bromine-producing plant, how many liters of gaseous elemental bromine at 340.°C and 0.809 atm…

A: We need to find the limiting reactant first. Limiting reactant is the reactant that is available in…

Q: A can of hair spray is used until it is empty except for the propellant, isobutane gas.(a) On the…

A:

Q: Calculate the volume of O2(g) in Liters that is required to convert 4.19 of S(s) to SO3(g) f the…

A:

Q: what is the mass of the solid NHy Cl formed when 7 volu NS MIxed Nth an equal mass HCNhtis the of…

A:

Q: The CO2 that builds up in the air of a submerged submarine can be removed by reacting it with sodium…

A:

Q: How many liters of fluorine gas are needed to form 865 L of sulfur hexafluoride gas if the following…

A:

Q: If 250 mL, 0.882 mol/L H2O2 decomposes completely, how many liters of O2 is generated at 25 °C, 1.02…

A: molarity of H2O2 solution = 0.882 mol/L  Volume of H2O2 solution = 250 mL = 0.250 L Temperature (T)…

Q: the industrial production of nitric oxide (HNO 3) via nitric oxide (NO) is called the outward…

A: The given equation for the reaction is : NH3(g)  +  O2(g)  →  NO(g)  +  H2O Temperature = 850°C…

Q: What quantity in moles of chlorine gas at 12.0 celsius and 33.3atm would occupy a vessel of 27.5L

A: Given :  Pressure = 33.3 atm  Volume = 27.5 L  Temperature = 12.0°C  To calculate :-  Number of…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A: Zn(s)   +    2 HCl(aq)      -->   ZnCl2 (aq)    +   H2 (g)        1 mol…

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

A: Given that volume of total sample gas = 15.2 L And the condition is STP,  So At STP, the molar…

Q: Silver oxide decomposes completely at temperatures in excess of 300 oC to produce metallic silver…

A:

Q: 4. Calculate the volume (L) of oxygen produced from the decomposition of 0.46 mol KCIO, at STP.…

A: 2KClO3 (s)  → 2KCl(s) + 3 O2 (g)

Q: An “empty” spray can contains residual propellant gas that has a pressure of 772 torr at 23oC.…

A: Given Information- initial pressure P1 = 772 torr initial temperature T1 = 23o C = 296.15 K final…

Q: o Argon mo lar entrapy when she gas Subjected 1o process an ideal gas. Finid the charge in is in…

A:

Q: If an air bag has a volume of 53.4 L and is to be filled with nitrogen gas at a pressure of 1.07 atm…

A: Given, Volume =54.4L Pressure=1.07atm And temperature= 23.7°C = 296.85K

Q: A typical passenger vehicle emits about 5,634 L of carbon dioxide per year.  Octane (C8H18) is a…

A: Octane oxidized to produce the carbon dioxide and water vapour.

Q: Magnesium carbonate reacts with hydrochloric acid to give magnesium chloride, carbon dioxide and…

A: a.b.Explanation:

Q: Pure FeS; is bumt with 60% excess air. Calculate the percentage of N2 by volume after the reaction.…

A: According to the law of chemical equivalence, in a chemical reaction, the number of equivalents that…

Q: Sodium hydroxide in the amount of 10.0 g is allowed to react with 1.12 L of carbon dioxide gas at…

A: Given data,Mass of NaOH=10.0gVolume of CO2=1.12L

Q: Consider the following chemical reaction: heat > KNO2(3) + O20 What mass of KNO3 would have to be…

A: Balance equation  2KNO3 (g) ==> 2KNO2 (s) + O2 (l)

Q: How many liters of oxygen gas at STP are required to react with45.5 g of aluminum in the production…

A:

Q: How many molecules of hydrogen chloride gas could theoretically be produced at STP by reacting 34.7…

A: In a balanced chemical equation number of atoms of each species are equal on both the reactant and…

Q: Sodium bicarbonate is reacted with concentrated hydrochloric acid at 37.0°C and 1.00 atm How much…

A: We use here balanced equation which tells about the moles of  product corresponding to moles of…

Q: How many liters of fluorine gas are needed to form 799 L of sulfur hexafluoride gas if the following…

A:

Q: To the nearest 0.1 g, how many grams of a candle wax from a different brand of candle can be burned…

A: First, calculate the volume of air in liters:5 gallons x 3.785 L/gallon = 18.925 LNext, calculate…

Q: Ammonium phosphate, (NH₂),PO4, is an important inorganic fertilizer. It is produced from phosphoric…

A:

Q: 112 ml of a gas is produced at STP by the action of 0.412 gm of ROH alcohol with CH3Mgl.Molecular…

A: It is known that, according to Avogadro's law 1 mole of the gas at STP occupies 22.4L That is, 1…

Q: 2.66L of carbon dioxide will form at STP from what mass of benzene in a combustion reaction? 2C6H6 +…

A: Given data:

Q: What is the percent yield when 0.0506 mole of H2O2 decomposes and experimentally produces 375 mL of…

A:

Q: A mixture of KCl and KClO3 weighing 1.92 grams was heated; the dry O2 generated occupied 148 mL at…

A: The mole concept can be used to calculate the moles of reactant or other products. One mole of the…

Q: 1. Jose mixed 10 grams of calcium phosphate and 10 grams of potassium carbonate in an aqueous…

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

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.