A chemist weighed out 5.14 gm of a mixture containing unknown amounts of BaO (s) and CaO(s) and placed the sample in a 1.50 liter flask containing CO2(g) at 30.0°C and 750 torr. After the reaction to form BaCO3(s) and CaCO3(s) was completed, the pressure of CO2(g) remaining was 230 torr. Calculate the mass percentages of CaO(s) and BaO(s) in the sample.

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

A: According to ideal gas law (for chlorine gas), PV = nRT where P = pressure in atm = Pressure in torr…

Q: (a) What is the total volume of gaseous products,measuredat 350C and 735 torr, when an automobile…

A: (A) The component of gasoline, i.e. the octane (C8H18) when burnt in presence of oxygen, it gives…

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

A:

Q: Two bulbs are connected by a stopcock. The 4.50 L bulb contains nitric oxide (NO) at a pressure of…

A:

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

A: Given Temperature = 25 oC = (273+25)K = 298 K Pressure = 705 torr = 705/760 = 0.927 atm Volume = 285…

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

A: Welcome to bartleby !

Q: Pure nickel metal can be obtained from the thermal decomposition of nickel tetracarbonyl according…

A: First we need to balance given chemical equation and calculate theoretical yield of gas from given…

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

A:

Q: What volume in liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the…

A: We are given 999 L of sulfur hexafluoride gas  2.00 atm and 273.15 K: S(s)+ 3F₂(g) → SF₆ (g)

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

A: The balanced equation of the reaction is-

Q: A 275-mL flask contains pure helium at a pressure of 746 torr. A second flask with a volume of 475…

A: Total volume after the stopcock is opened. The total volume is 275 ml + 475 ml = 750 ml. Since the…

Q: gas mixture contains O 2 , N 2 , and Ar at partial pressures of 125, 175, and 225 mmHg,…

A: Interpretation: The partial pressure in millimeters of mercury for carbon dioxide gas when added to…

Q: Three 1.00-L flasks at 25°C and 725 torr contain the gases CH4 (flask A), CO2 (flask B), and C2H6…

A:

Q: What volume of gas is produced when 16.0 g of lithium reacts with 30.0 mL of water? Assume that…

A: Lithium reacts with water to produce lithium hydroxide and hydrogen gas. Reaction can be represented…

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: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: 1. Balanced chemical equation Given;

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

A:

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

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

Q: The Haber process is used to synthesize ammonia (NH3) on a large scale by the reaction of nitrogen…

A:

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

A: Given the chemical reaction for the prepration of chlorine as…

Q: Consider the generic reaction: 2 A(g) + B(g)》2 C(g). If a flask initially contains 1.0 atm of A and…

A: Reaction proceeds to completion implies that almost all of the reactants are converted into product.…

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: Gaseous iodine pentafluoride, IF, can be prepared by the reaction of solid iodine and gaseous…

A: Given: Volume = 10 L Mass of I2 = 17 g Pressure of F2 = 2 atm

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: Given data,Volume of…

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

A:

Q: Oxygen gas reacts with powdered aluminum according to the reaction:4 Al(s) + 3 O2(g) ------->2…

A: Given: Pressure= 782 mmHg= 782760atm=1.0289 atm Temperature= 25°C=25+273.15 K=298.15 K Mass of Al=…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: Given-> Volume of N2(g) = 87.0 L T = 12.0°C = 12.0 + 273 = 285 K P = 1 atm

Q: The volume of gas in a container was originally 3.24L, while at standard pressure, 1.00atm. What…

A: Given information: V1 = 3.24 L P1 = 1.00 atm P2 = 1.20 atm

Q: Methanol is synthesized by the reaction of CO2 and H2 as seen in the reaction  CO + 2 H2 = CH3OH…

A: CO2 + 2H2 ---> CH3OH  Temperature = 22°C = 22+273 = 295 K Pressure = 756 mm Hg  = 756 /760 =…

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

A: The given chemical equation is as follows: MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g) The…

Q: A 3.19-g mixture of solid CaO and solid ZnO is reacted in a 2.00-L container with CO2(g) at a…

A: The chemical reactions taking place are: CaO(s)+CO2(g)→CaCO3  (s)-----1ZnO(s)+CO2(g)→ZnCO3(s)…

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

A:

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

A:

Q: Sodium metal reacts explosively with hydrochloric acid, HCl(aq), as shown in the following chemical…

A:

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

A:

Q: Oxygen gas is formed by the decomposition of potassium chlorate at high temperatures according to…

A: As the height of the mercury column is rising on the side of the reaction, the expression for the…

Q: From data gathered by Voyager 1, scientists have estimatedthe composition of the atmosphere of…

A: Given information: Total pressure = 1220 torr Percent of nitrogen = 82% Percent of argon = 12%…

Q: 8) Consider the apparatus pictured below, which consists of two containers separated by a valve.…

A: The ideal gas equation is PV=nRTP=nRTV

Q: A flask of volume 0.753 L contains a sample of chlorine gas, Cl2, with a pressure of 198 Torr at…

A: Volume = 0.753 L  Pressure = 198 torr  Temperature = 25.8 °C  Mass of sodium required to completely…

Q: Small amounts of oxygen can be generated by the thermal decomposition of KClO 3; 2 KClO 3(s) ↔ 2…

A:

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: 500 mL of a 1.52 mol/L solution of vinegar (acetic acid) is used to react with a 2.53 g sample of…

A: Given the molarity of acetic acid(CH3COOH) in the vinegar solution, C = 1.52 mol/L Volume of acetic…

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: In the reaction,   2HgO(s)⟶2Hg(s)+O2(g)2HgO(s)⟶2Hg(s)+O2(g)   how many liters of oxygen, O2,…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Given the following reaction:   Mg(s)  +   2 HCl (aq)    ⟶    MgCl2(aq)   +   H2(g)   2.66 g of…

A:

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.