The volume of a sample of pure HCl gas was 289 mL at 24 ° C and 137 mmHg. It was completely dissolved in about 50 mL of water and titrated with an NaOH solution;  11.7 mL  of the NaOH solution was required to neutralize the HCl. Calculate the molarity of the NaOH solution.

Q: oxygen can be generated in the laboratory by heating potassium chlorate until it it decomposes. what…

A: The potassium chlorate is heated in laboratory to generate oxygen.   2KClO3 (s)→2KCl (s) + 3O2 (g)…

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: What minimum volume of chlorine gas (at 298 K and 275 mmHg) is required to completely react with…

A: Below attached file showing the details answer. All the best.

Q: Air contains nitrogen, oxygen, argon, and trace gases. If the partial pressure of nitrogen is 592 mm…

A: Given: Partial pressure of Nitrogen = 592 mm Hg Partial pressure of Oxygen = 160 mm Hg Partial…

Q: In what volume must 12.5 moles of argon be contained so that at 20.0°C it would exert a pressure of…

A:

Q: In a common Freshman College Laboratory experiment, KClO3 is decomposed by  heating to give KCl and…

A: Answer:- Firstly a balanced chemical equation is written then using the simple concept 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: 101. During the making of steel, iron(II) oxide is reduced to metallic iron by treatment with carbon…

A: Mass of FeO= 1.45kg. = 1.45 ×1000 gram = 1450gm Pressure=1atm Temperature=273K Volume of CO=? Volume…

Q: If 1.00 kg of ammonium nitrate is sealed into a 50.0 L steel drum and heated to 787 degrees Celsius,…

A: Given : Mass of ammonium nitrate i.e NH4NO3 = 1.00 Kg = 1000 g Volume of flask = 50.0 L Temperature…

Q: Calculate the ratio of effusion rates for nitrogen ( N 2 ) and neon (Ne).

A: According to Graham's law of effusion rates of gases, "Rate of effusion of a gas is inversely…

Q: A mixture of xenon and nitrogen gases at a total pressure of 927 mm Hg contains xenon at a partial…

A:

Q: 5. If 2.0 moles of each gas are taken and kept under the same conditions of temperature and…

A: At STP same moles of gas occupies  same volume .

Q: For the given reaction, what volume of O, would be required to react with 6.4 L of CO, measured at…

A: PV = nRT  When temperature and pressure is constant  V directly proportional to moles…

Q: Place the following gases in order of increasing density at STP. O 2 NH 3 N 2O 4 Ar

A: Given, O2, NH3, N2O4, Ar

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: The compound is oxidized and the chlorine in the substance is converted to chlorine gas. if 40 mg of…

A: Given :  Volume = 12 m3  Pressure = 1 atm  Temperature = 25°C = 298 K  Final pressure = 1 atm  Final…

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

A:

Q: To collect a beaker of H2 gas by displacing the air already in the beaker, would you hold the beaker…

A: The reason why one should hold the beaker upright or inverted has to be given,

Q: What is the partial pressure of O2?

A:

Q: Suppose you are given two 1-L flasks and told that one contains a gas of molar mass 30, the other a…

A: From ideal gas equation,

Q: What volume is occupied by 0.640 mol of CO2 at 273.5 K and 701 mmHg ?

A: We have to calculate the volume occupied by gas.

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: A vessel contains 66 g CO2 and 16 g O2 at a pressure of 10.0 atm. What is the partial pressure of…

A: Given,  A vessel which contains 66g Carbon dioxide and 16g of oxygen gas at a pressure of 10 atm.…

Q: How many moles of neon gas occupy a volume of 14.3 L at STP conditions?

A: Approximately 0.64 mole

Q: How many liters of oxygen are necessary for the combustion of 425 g of sulfur, assuming that the…

A: Chemical equation for the combustion of sulfur is: S+O2→SO2 Hence, 1 mole of oxygen is required to…

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: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: The ideal gas equation is shown below: PV = nRT Where; P = pressure of the gas V= volume of the gas…

Q: What volume would 27 grams of CO2 occupy at 19 degrees celsius, 534 mm Hg pressure?

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: What volume is occupied by 0.781 mol of CO2 at 237.5 K and 977 mmHg?

A: Write down what information is given to you

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: Why do deep-sea divers breathe a mixture of helium and oxygen?

A: Oxygen becomes toxic when breathed at pressure, it can cause painful convulsions which underwater…

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

Q: 2 Na(s) + 2 H20 (1) → 2 NaOH (aq) + H2 (g) Calculate the mass of sodium required to produce 456 mL…

A: Given : We have to calculate the mass of Na.

Q: What mass of magnesium must be reacted with hydrochloric acid to obtain 750. mL of hydrogen at 25oC…

A: Find the moles of H2 gas using equation PV = nRT  then find the mass of Mg using the balanced…

Q: The volume of a sample of pure HCl gas was 189 ml at 25°C and 108 torr. It was completely dissolved…

A: Given that,  Volume of HCl gas = 189ml = 0.189L Pressure = 108torr = 0.142atm Temperature = 25°C =…

Q: if 89.83 L of water are produced at STP? (4pts)

A: Produced volume of H2O =89.83 L 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g)

Q: At what temperature will 19.4 g of molecular oxygen, O2, exert a pressure of 1820 mm Hg in a 5.12 L…

A:

Q: A sample of nitrogen gas has a volume of 167.0 mL at STP. What volume (in mL) does the gas occupy if…

A: 1) Given that: Volume of nitrogen (V1) = 167.0 mL = 0.167 L at STP that is Temperature (T1) = 273 K…

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

A:

Q: What is the pressure (in atm) of 0.250 mole of nitrogen gas at 18C in a 7.50 x 103 mL container?

A: Given that : Moles of nitrogen (n) = 0.250 mol Temperature (T) = 18 C = 291 K Volume (V) = 7.50 x…

Q: A gas-filled balloon having a volume of 3.80 L at 1.25 atm and 19°C is allowed to rise to the…

A: Consider the given information is as follows; Initial volume V1=3.80 LInitial presure P1=1.25…

Q: How many moles of argon gas would it take to fill a cylinder with a volume of 1.4 L to a pressure of…

A: Volume of cylinder = 1.4 L Pressure of gas = 2.5 atm Temperature of gas = 310 K No. of mol of Argon…

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

A:

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: Answer: When hydrogen gas is collected over HCl, solution it would also be containing water vapor in…

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: How many grams of O2 are present in a sample which occupies 750 mL at 18°C and a pressure of 735 mm…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What volume in liters of fluorine gas is needed to form 475 L of sulfur hexafluoride gas if the…

A: Given;

Q: Calculate the volume of nitrogen dioxide gas in mL required to make 10.0 g nitric acid at 1.80 atm…

A: Welcome to bartleby !

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.