TUMS®, a form of calcium carbonate often needed after final exams, neutralizes stomach acid according to this reaction: CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(1) + CO2(g) (a) What volume of CO2(g) is produced at 1.00 atm and 37.0 °C when an excess of CaCO3 completely reacts with 605 mg of HCl? (Mm of HCl = 36.461 g/mol) (0.211 L) (b) Suppose the CO2(g) in part (a) was collected over water. What change would be made in the pressure value in your calculation? The vapor pressure of water at 37°C is 45.5 mmHg. (0.94 atm)

Q: If 78.1 g of solid CaCO3 and 480 mL of 0.458 M aqueous H2SO4 are reacted stoichiometrically…

A: Determine number of moles of each reactant: 1 mL = 0.001 L From the balanced equation, it is clear…

Q: ne air bags in automobilles were once Inflated by hitrogen gas generated by the rapid decomposition…

A: Equation is  2NaN3(s) —> 2Na(s) + 3 N2(g)  we have to find the no. of moles of N2 by formula PV =…

Q: Automobile airbags are inflated by the rapid decomposition of sodium azide (NaN3). 2 NaN3(s) --> 2…

A:

Q: For the equation below: Mg (s)+2HCl (aq) ----> MgCl2 (aq)+H2 (g) (a) How many moles of hydrogen…

A:

Q: Consider the balanced reaction below: AB(s) + 2 DE (aq) → 3 R2 (g) + 4 Q (aq) When the reaction…

A: When a gas is collected over water, some water vapours also present along with the gas. The pressure…

Q: 3. Dr. Dahm is trying to generate CO2(g) by reacting an acid with calcium carbonate. If he pours 389…

A: Given :  Volume of H2SO4 = 389 ml  Concentration of H2SO4 = 1.6 M  Mass of CaCO3 = 69.5 gm…

Q: What volume of ammonia gas (NH3), measured at 600 mm Hg and 55 °C, is requirec to produce 5.00 g of…

A: Given that, Pressure = 600 mmHg , Temperature = 55⁰C = 328.15⁰C Since, 760 mmHg = 1 atm Hence,…

Q: At 2°C a 1.0-L flask contains 1.0x 10^-2  mole of N2 , 4.0x10^2 mg O2 , and 5.1x 10^21 molecules of…

A: N2 =  1.0x 10^-2  mole = 0.01 mole O2 =  4.0x10^2 mg =400 mg =0.4 g O2 = 0.4 g / 32g/mol = 0.0125…

Q: When designing a model air bag, how many grams of NaHCO3 (Molar Mass = 84g/mol) needs to be added to…

A:

Q: 0.30 mol H2 (g) and 0.20 mol O2 (g) are added to a cylinder.  Before reaction, the total pressure is…

A:

Q: consider an experiment where 4.55mL of an unknown H2O2(aq) solution reacted with the yeast at 19.1 C…

A: Given , Partial pressure of O2 gas collected = 1.0126 atm moles of O2 produced = 0.004142 mol

Q: In the first step of the industrial process for making nitric acid, ammonia reacts with oxygen in…

A: In the above question we have to find the volume of NH3(g) at the given data in the first step of…

Q: What is the pressure of the H,

A:

Q: What volume of carbon dioxide (in L) will 3.54 g of antacid made of calcium carbonate produce at…

A: Given that, weight of antacid CaCO3 = 3.54 g Molar mass of CaCO3 = 100.0869g/mol Moles of CaCO3 =…

Q: Find the mole fraction (in percents) of C2 H2 (g) that has undergone reaction.

A: 3C2H2(g)       ⇔      C6H6 (g) Initial pressure         7.0 kPa…

Q: Ideal Gas Law Fermentation of glucose produces gas in the form of carbon dioxide, how many moles of…

A: Formula:  Ideal gas equation, PV = nRT  where V = volume in liters  P = pressure in atmosphere n =…

Q: What volume of carbon dioxide will 4.70 g of antacid made of calcium carbonate produce at 37.0 °C…

A: In this question, we want to determine the Volume of CO2 gas. You can see details Solution below…

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

A: Solution An ideal gas is outlined as a theoretical vaporific substance whose behavior is freelance…

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6…

A: The objective of the question is to calculate the volume of hydrogen gas.

Q: Hydrogen is considered a “green fuel” and can be used in fuel cells. One method of hydrogen…

A: Mass of CH4(g)= 988 gMolar mass of CH4 = 16 g/mol

Q: 11. Synthesis gas, which is used in the production of ammonia and methanol, among other uses, is…

A: Since PV = nRT  where P = pressure in atm V = volume in L  n = moles  R =  0.0821  T = temperature…

Q: Isooctane (C8H18) is the primary component of gasoline, which burns according to the reaction below.…

A:

Q: Natural gas is a mixture of hydrocarbons, primarily methane (CH4) and ethane (C2H6). A typical…

A: To calculate Partial pressure of both the gases Total mass of water formed on the complete…

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

A: Reaction :

Q: lorine is widely used to purify municipal water oplies and to treat swimming pool water. ppose that…

A: Given that: V1 = 8.60L P1 = 890 torr T1 = 25°C = 25°C+273 = 298K V2 = 6.90L T2 = 56°C = 56°C+273 =…

Q: What mass of Mg and what volume of 1.50 M HCI are required to make 62.3 L of H₂ gas at a temperature…

A:

Q: A.) An aqueous solution of potassium acetate, KCH3COO, contains 3.47 grams of potassium acetate and…

A: The answers to the following Questions are given as:

Q: Part A What volume of O2 at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your…

A: Given that: pressure, P = 722 mmHg = 722760= 0.95 atm temperature, T = 21 oC = 21 + 273 = 294 K…

Q: Water decomposes according to the following reaction: 2 H2O (g) ->  O2 (g) + 2 H2 (g). If 0.050 mol…

A: Given : Volume = 1L  Moles of water = 0.050 moles Temperature = 298K

Q: Chlorine gas reacts with fluorine gas to form chlorine trifluoride. Cl2(g) +3 F2(g) → 2 CIF 3(g) If…

A: The balanced chemical equation is as follows:The volume of chlorine gas = The volume of fluorine gas…

Q: A sample of gas isolated from unrefined petroleum contains 90.0% CH4, 8.9% C2H6, and 1.1% C3H8 at a…

A:

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction:…

A:

Q: What volume of carbon dioxide at STP will be produced when 0.97 mol of HF are reacted with an excess…

A:

Q: The gas of a certain volcano had the following composition in mole percent: 60.0% CO2, 28.0% H2,…

A: To calculate partial pressure of CO2:

Q: At 22oC and 0.998 atm, what is the theoretical volume (in mL) of hydrogen gas produced when 0.45g of…

A:

Q: Urea ((NH2)2CO(s)) was the first organic compound to be synthesized in a laboratory. Today it is…

A: The objective of the question is to find out the volume of CO2(g) required to react with 10 L of…

Q: A mixture of cyclopropane gas (C3H6) and Oxygen (O2) in a 1.00 to 4.00 mole ratio is used as an…

A: Given that the mole ratio of cyclopropane and oxygen in the mixture is 1:4 respectively. The partial…

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

A:

Q: What volume of hydrogen gas, in mL, is produced from 0.128 g Mg reacting with an excess of HCI at a…

A: A question based on the mole concept. Using the information about the number of moles of reactant…

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction:…

A: The given reaction is, CO(g)+2H2(g)→CH3OH(g) Given: volume = 2.00 L Temperature= 305 K Partial…

Q: 11. What volume of hydrogen gas at STP may be prepared by the reaction of 4.54 g of gallium with…

A: Given, Ga(s) + HCl(aq) ➝ GaCl3 + H2 Mass of Ga reacts = 4.54 g Molarity of HCl solution = 1.75 M =…

Q: One way to reduce air pollution is to remove potential pollutant gases from an exhaust stream before…

A: Given, a chemical reaction between CO2 and CaO(s) as following,CO2(g)+CaO(s)→CaCO3(s)volume of…

Q: for this question. Sodium metal reacts with water to produce hydrogen gas according to the following…

A: The reaction is given as, 2 Na(s) + 2 H2O(l) → 2NaOH(aq) + H2(g) From the balanced chemical…

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

A:

Q: What volume of carbon dioxide (in L) will 3.26 g of antacid made of calcium carbonate produce at…

A: To solve this problem we will use the given balanced chemical equation and ideal gas equation .

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.