A reaction between 0.359 grams of Mg and 21.12mL of a 0.450M HNO3 solution was conducted in a room witht he following conditions: 27.5 degrees Celius, 723mmHg of atospheric pressure. If .15mL of H2 were collected over water (by the water displacement method), calculate the percent yeild of the reaction. (Pressure H2O at 27.5 degrees Celius = 27.82 mmHg)

Q: 5. A 5L car tire is filled with N2 to a pressure of 4 atm at 18°C. (a) How many grams of N2 present…

A: Given  Volume  = 5 Liter  Pressure of N2  = 4 atm  Temperature ( T ) = 18 ℃…

Q: Which of the following (assuming ideal gases) occupies the largest volume at 273 K and 1 atm?…

A: Well, it is mentioned that gases are ideal. so we know Avogadro's law, The volume of the gas is…

Q: A gas mixture contains He, Ne, and H,S at partial pres- sures of 125, 175, and 225 mm Hg,…

A: Dalton's law of partial pressure states that, the total pressure of a mixture of gases occupying a…

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

A:

Q: 2.25 grams of zinc metal is reacted with 54.3 mL of a 1.22 M HCl solution. If 1.52 L of hydrogen gas…

A:

Q: 1) A gas mixture at 20.0°C and 2.0 atm contains 0.40 mol of H2, 0.15 mol of 02, and 0.50 mol of N2.…

A: 1- First calculate the mole fraction of H2 gas :  Total moles = ( moles of Hydrogen + moles of…

Q: e K, for 2 SO2 (g) + 02 (g) =2 SO3 (g) is 1.20 * 103 at 527°C. If a 15.0 L vessel is set up with…

A: We have to find the equilibrium partial pressure and total pressure

Q: Be sure to answer all parts. At 1440.0 mmHg and 286 K, a skin diver exhales a 448-mL bubble of air…

A:

Q: A mixture of N2, O2, and Ar has mole fractions of 0.25, 0.65, and 0.10, respectively. What isthe…

A: Given that,Mole fraction of Mole fraction of Mole fraction of Total pressure of the mixture=The…

Q: What is the theoretical volume (in mL) of H₂(g) when a student mixed the 0.12g of Zinc metal and…

A: mass of Zn reacts = 0.12 gMolarity of HCl solution = 1.00 M = 1.00 mol/LVolume of HCl solution =…

Q: While ethanol (CH3CH₂OH) is produced naturally by fermentation, e.g. in beer- and wine-making,…

A: Given: when ethylene gas reacts with water vapor to form ethanol.The balanced equation is:volume of…

Q: A person inhales air richer in Oz and exhales air richer in CO2 and water vapor. During each hour of…

A: pressure (p) = 30.0 torr = 30760pa volume (v)= 300 L Temperature = 25.1oC = (273.15+25.1)K = 298.25…

Q: An 6.72 g sample of Ag20 decomposes into solid silver and O2g). If the gas is collected over water…

A: Given :  Weight of Ag2O sample = 6.72 gm  Temperature = 25°C = 298 K  Pressure over which O2 gas is…

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: Chlorine dioxide, ClO2, is sometimes used as a chlorinating agent for water treatment. It can be…

A: Given reaction is :  Cl2 (g) + 4NaClO (aq) ----------> 4NaCl (aq) + 2ClO2 (g) Volume of Cl2 = V…

Q: A 0.235 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H₂SO4 (aq)…

A:

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

A: The chemical equation may be written as: a. The volume of solution is given : Now calculate the…

Q: 1. What are the classifications of laboratory apparatus?

A: Laboratory apparatus are very important for learning practical knowledge of chemistry. Its like…

Q: A neon atom has a radius of 68 pm. (a) Calculate the volume of 1 mol Ne atoms; V = 4πr3/3

A: All atoms are considered to be sphere. Therefore, the volume of the atom is given by , Volume =43πr3…

Q: How many moles of nickel ll chloride should be added to 600. moles of water to lower its vapor…

A: Given data is as follows: The number of moles of water = 600 mol The vapor pressure of pure water =…

Q: (a) How many molecules are there in 1L of air at a temperature of 27°C? (b) How many kilomoles of…

A: Given Data: Volume of air, V = 1 L Temperature, T = 27oC = 27 + 273 K = 300 K Taking pressure of air…

Q: Sodium azide is used in air bags for automobiles. The gas produced from the decomposition of sodium…

A: Given: The volume (V) of nitrogen gas is 45 L The pressure (P) of nitrogen gas is 1.0 atm The…

Q: Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K

A:

Q: Calculate the Volume of Carbon Dioxide gas that was produced in the reaction of baking soda and…

A:

Q: A 0.495 g sample of a metal, M, reacts completely with sulfuric acid according to…

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: Which substance is injected in gas fuel to remove SO3 gas M9SO4.7H20 ; Mgo Mg

A: The substance which is injected in gas fuel to remove SO3 gas is

Q: Calculate the total pressure (in atm) of a mixture of 0.0200 mol of helium, He, and 0.0100 mol of…

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

Q: Given the following reaction, CaH2 (s) + H20 (1) ---> Ca(OH)2 (aq) + H2 (g) a) Balance the equation;…

A: Given reaction,     CaH2(s) + H2O(l) → Ca(OH)2(aq) + H2(g)

Q: If helium is released into one end of a glass tube of 2.00 meters at the same time krypton is…

A:

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: A 0.516 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) + H, SO,(aq)…

A: A metal on reacting with acid will result in the production of hydrogen gas as follows:…

Q: 1. A student following the procedure described in this module collected the following data: mass…

A: According to Q & A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: What is the partial pressure of He in a 5.00-L vessel at 25ºC that contains 0.0410 mole of He, 0.121…

A:

Q: What volume of H2 gas (in liters), measured at 21°C and 710 . torr, can be obtained by reacting 4.78…

A:

Q: What volume of O2 (g) is collected at 25.0°C and 1.02 atm if 1.00 kg of water is electrolyzed?…

A: Let us consider a gas 'Q' The ideal gas equation for the gas : PV = nRT P = Pressure of the gas V =…

Q: in the following reaction, 27.1 mL of o2(g) is collected over water at 23*C and barometric pressure…

A:

Q: How many moles of a gas mixture would be needed to provide 0.555 mole O2, if the mole fraction of O2…

A:

Q: 1. (a) A column of water in a buret is 336 mm Hg high. How high would that column be if it were…

A: Since you have posted multiple questions, according to guidelines I am solving first one.If you want…

Q: 1) Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K)

A: As per our guidelines, we are supposed to answer?️ only one question. Kindly repost other questions…

Q: a) A piston at 5.7 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A: Boyles law:- PV=constant Charles law:- V=KT

Q: (b) If a 2.302g sample of impure cobalt(III) carbonate is heated, and 415mL of carbon dioxide is…

A: V = 415 mLT = 23+273=296KR=0.08206 Latm/molKP=1.512 atm

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 .

Q: more physically relevant than average speed for the kinetic theory of gases). What is the rms speed…

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.