A 6.53-g sample of a mixture of magnesium carbonateand calcium carbonate is treated with excesshydrochloric acid. The resulting reaction produces 1.72 Lof carbon dioxide gas at 28 °C and 743 torr pressure.(a) Write balanced chemical equations for the reactionsthat occur between hydrochloric acid and each componentof the mixture. (b) Calculate the total number ofmoles of carbon dioxide that forms from these reactions.(c) Assuming that the reactions are complete, calculatethe percentage by mass of magnesium carbonate in themixture.

Q: If 5.00 L of hydrogen gas,measured at a temperature of 20.0°C and a pressure of80.1 kPa, is burned…

A: The mass of oxygen has to be given, Given: P=80.1 kPa V=5.00 L R=8.31447 L kPa K−1mol−1 T=20.0∘C +…

Q: 4. A 34.0-L cylinder contains 305 g of oxygen gas at 22°C. How many grams of gas must be released to…

A:

Q: A sample of nitrogen is collected by water displacement at 730,0 mm Hg and 20°C. What is the partial…

A: At 20oC vapor pressure of water = 17.5 mm Hg = PwaterTotal pressure = Ptotal = 730 mm Hg According…

Q: at a certain temperature and at a total pressure of 105 Pascals, iodine vapor contains 40% by volume…

A: Given, Total pressure (PT) = 105 Pascals If Iodine vapor contains 40% by volume of I atoms, than it…

Q: 1)How many mL of nitrogen gas is required to completely reacts with 12.0mL of hydrogen gas at…

A:

Q: In CACO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP, can be…

A: Given balanced equation is as follows. CaCO3+2HCl→CaCl2+H2O+CO2 That means 1 mole CaCO3 will produce…

Q: What mass of Carbon Dioxide will exert the same pressure as 12.5 g of ammonia at the same volume…

A: # We are given that we have same condition for both gases that is same volume, temperature and…

Q: Combustion of hydrocarbons such as heptane (C,H16) produces carbon dioxide, a "greenhouse ga trap…

A:

Q: Zine metal reacts with excess hydruchloric acid to produce hydrogen gas arerding to the following…

A:

Q: What will be the density of CO2 in g/L at temperature 298 K, and 1 atm pressure?

A: The relationship between the mass of a substance (M) and the occupied volume (V) is furnished by a…

Q: Geraniol is a compound found in rose oilthat is used in perfumes. What is the molar mass ofgeraniol…

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

Q: What is the temperature (in K) of 0.325 mole of neon in a 2.00 L vessel at 4.68 atm?

A:

Q: Consider the reaction between aluminum and sulfuric acid to produce aluminum sulfate and hydrogen.…

A: One mole of any gas at STP(standard temperature and pressure i.e 273 K and 1 atm ) take up a volume…

Q: What is the temperature (in K) of 0.780 mole of neon in a 2.00 L vessel at 4.68 atm?

A: Given question a mole of neon(n) = 0.780 Volume of (V) = 2.00 Liter Pressure (P) = 4.68 atm  We have…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A:

Q: ) If 300.0 grams of aluminum are mixed with 1800.00 ml of 6.0 M HCl, then how many ml of hydrogen…

A: It can solved using unitary method as follows

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

A: If temperature and pressure keeping constant then volume of gas is directly proportional to the…

Q: A sample of gaseous arsine in a sealed 500.0 mL flask at 278.0 torr and 223 K is heated to 473 K at…

A: The no of moles of arsine before and after decomposition can be calculated from ideal gas equation.…

Q: A gas occupies a volume 1.27 L and 25 Celsius is adjusted to new volume of 1.02 L at standard…

A:

Q: Consider the following reaction for the combustion of octane, C8H18: What volume of oxygen gas at…

A: Combustion of octane is, Calculate the number of moles of octane:

Q: In 2021, 7.5 x 1014 mol = 750,000,000,000,000 mol of CO2 into the atmosphere worldwide. At standard…

A: Given: Pressure = 1 atm. Temperature = 273.15 K And moles of CO2 = 7.5 × 1014 mol.

Q: What is the temperature (in K) of 0.435 mole of neon in a 2.00 L vessel at 4.68 atm?

A:

Q: What is the temperature (in K) of 0.450 mole of neon in a 2.00 L vessel at 4.68 atm?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A:

Q: In one lab, the gas-collecting apparatus used a gas bulb with a volume of 231 mL. How many grams of…

A: Given: Volume of CO2 produced = 231 mL = 0.231 L                                           (Since 1…

Q: A greenhouse contains 256 m³ of air at a temperature of 26°C, and a humidifier in it vaporizes…

A:

Q: What is the mass (in grams) of 6.00 L of propane vapor (C:Hs) at STP?

A: To Solve this problem we will use the relationship that  1 mol of any gas at STP = 22.4 L of that…

Q: How many grams of solid lithium (Li) must be added to liquid water in order to obtain 99.5 L of…

A: Given: The volume of hydrogen gas (H2) at STP is 99.5 L

Q: What is the temperature (in K) of 0.840 mole of neon in a 2.00 L vessel at 4.68 atm?

A:

Q: At what temperature (in °C) would one liter of ethene gas, C2H4, have a mass of 1.166 g, if the gas…

A: A mole of a substance refers to the mass of that substance which will contain same number of   atoms…

Q: A sample of volume 258 cm3has a mass of 2.71 kg.(a) Is the material gaseous or condensed?(b) If the…

A:

Q: the  kinetic theory of gases is an attempt to explain the properties(behaviors} of ideal gases. what…

A: For the assumption of ideal gas behaviour representation , one theory arise , that theory is known…

Q: A sample of hydrogen gas produced in a laboratory experiment had a volume of 280. mL at a pressure…

A:

Q: are by the min hire ? O. The total pressure exerted by a mixture of an unknown of nirogen and 0.…

A: Pressure exerted by nitrogen gas is 1.36atm.

Q: The stopcock connecting a 1.00 L bulb containing carbon dioxide gas at a pressure of 522 mm Hg, and…

A: PCO2 is 522 mm Hg PCH4 is 662 mm Hg Pfinal after mixing =?

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

A: 1. The decomposition of sodium azide will be as :-  2 NaN3(s) -----> 2Na(s) + 3 N2(g)  2. Mass of…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

Q: Calculate the pressure in bar of 2520 moles of hydrogen gas stored at 27 °C in the 180-L storage…

A: Given that, Number of moles (n)=2520 moles Temperature (T)=27 °C                           =27…

Q: 3) A sample of propane occupiesin 31.1Lat STP PL a how mana moles of propane are Present? b) what is…

A:

Q: At what the pressure, in atmospheres, that O2 gas at 75°C has a density of 2.00 g/L?

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles  R = gas constant =…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A:

Q: at a certain temperature and at a total pressure of 105 Pascals, iodine vapor contains 40% by volume…

A: According to Dalton's law of partial pressure, the total pressure exerted by a mixture of gases is…

Q: You have two glass bottles, one containing oxygen and onefilled with nitrogen. How could you…

A: Introduction: Nitrogen belongs to group with 15 with atomic number 7 and mass 14 u. It is one of the…

Q: What is the temperature (in K) of 0.820 mole of neon in a 2.00 L vessel at 4.68 atm?

A:

Q: In one of his most critical studies into the nature of combus-tion, Lavoisier heated mercury(II)…

A: Given information,    40.0 g of mercury(II) oxide is heated in a 502-mL vessel and 20.0% (by mass)…

Q: . A gaseous hydrocarbon, in a volume of 25.4 L at 400 Kand a pressure of 3.40 atm, reacts in an…

A: Moles of gaseous hydrocarbon, n= PVRT = 3.40 x 25.4 0.0821 X 400 = 2.63 mol Moles of Carbon atoms =…

Q: In CaCO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP,can be…

A: 1 mole = 6.022×1023 (Avogadro's number ) The mass of one mole of atoms is called atomic mass  For…

Q: Mass of a vacuumed (empty) vessel of volume 5 L is 640.05 g, and mass of the same vessel filled with…

A: Number of moles of hydrocarbon can be determined using Ideal gas Equation as follows,

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A: According to ideal gas law the volume of a gas is directly proportional to the number of moles,…

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.