A sample of helium gas collected at a pressure of 808 mm Hg and a temperature of 285 K has a mass of 3.54 grams. The volume of the sample is L.

Q: Lithium Chlorate is decomposed with heat to give lithium chloride and oxygen gas. if 1.115 g of…

A: we have to calculate the volume of oxygen produced by the decomposition of lithium chlorate

Q: The storage bottle should be a dark or AMBER-colored reagent bottle

A:

Q: What are inert gases? Give examples?

A: In the periodic table, the elements are classified and grouped together into various blocks. There…

Q: A sample of 4.25 moles of hydrogen at 20.0ᵒC occupies a volume of 25.0L. Under what pressure is this…

A: The number of moles of the gas sample is = 4.25 moles The temperature of the gas sample is = 20.0oC…

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Ideal gas equation is equation which obeys gas law under all conditions of temperature and pressure.…

Q: A sample of oxygen gas collected at a pressure of 196 mm Hg and a temperature of 303 K has a mass of…

A: Pressure of oxygen gas = 196 mmHg  ...Or  because 1 mmHg = 1/760 atm ...so,  = 196 × (1/760 ) atm  =…

Q: Calculate the molar mass of the gas, & determine its identity.

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

Q: if 336.00 g of magnesium chlorate decomposes,what volume of oxygen will be captured at stp

A: The objective of this question is to determine the volume of oxygen that will be produced when…

Q: A 212 L sample of a gas exerts a pressure of 42.4 kPa. If its volume is expanded to 319 L, what will…

A: The question is based on the concept of Boyle's law. it states that for a given amount of gas , at…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: Unit conversion from mm Hg to atmosphere can be done using the formula given below:

Q: potassium chlorat decomposes to oxygen and potassium chloride by simply heating as shown in the…

A: Given, potassium chlorate decomposes to oxygen and potassium chloride.amount of  potassium chlorate…

Q: Given a cylinder of medical oxygen with volume of 35.4 L, pressure of 149 atm, and temperature of…

A: The volume of the oxygen gas is = 35.4 L The pressure of the gas is = 149 atm The temperature of the…

Q: liter iHer of a certin gas Weighs grams at STP the mass of mole of gas is?

A:

Q: Express the pressure 620 mm Hg in kilopascals and atmospheres.

A: Unit conversion of pressure: 1 atm ( Atmosphere ) = 760 mm Hg 1 atm = 101325 Pa ( Pascal ) Given…

Q: If 2.56g of argon gas occupies a volume of 4.2 L, what volume will 1.18 moles or argon gas occupy…

A:

Q: A sample of carbon dioxide gas collected at a pressure of 745 mm Hg and a temperature of 277 K has a…

A:

Q: Determine the volume of 5.46 x 1014 atoms of neon at STP.

A: Since number of atoms = moles X Avogadro's number  Where Avogadro's number = 6.022 X 1023  =>…

Q: A sample of hydrogen gas collected at a pressure of 740 mm Hg and a temperature of 291 K has a mass…

A: The given problem can be solved using the ideal gas equation as follows:

Q: temperature of 30.0 °C is found to occupy a volume of 28.5 liters. The pressure of this gas sample…

A:

Q: A mass of 37.5 g of calcium chlorate is decomposed by heating. How many liters of gas at STP are…

A: When chemical substances combine such that their ionic or molecular structures change to generate…

Q: A mixture of oxygen and neon gases is maintained in a 5.98 L flask at a pressure of 2.08 atm and a…

A:

Q: A 2.55 mol sample of Kr has a volume of 807 mL. How many moles of Kr are in a 5.37 L sample at the…

A: use        PV= nRT

Q: A sample of argon gas collected at a pressure of 926 mm Hg and a temperature of 279 K has a mass of…

A: Given: Temperature= 279 K Mass= 49.9 g Pressure= 926 mm Hg=926/760= 1.22 atm

Q: Find the volume of 3.0 × 1025 molecules of Neon gas at STP.

A: We know that, at stp ( standard temperature and pressure) 1 mole of any ideal gas occupies the…

Q: At 25 oC and 1 atm, what is the molecular weight of this gas?

A:

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Given,           mass of chlorine gas= 1.34g           At STP                   Temperature= 273 K…

Q: If 2.57 g of argon gas occupies a volume of 4.15 L, what volume will 1.42 mol of argon occupy under…

A: Given, Initial volume, v1 = 4.15 L Mass of first sample of argon gas = 2.57 g Number of moles of…

Q: to access important values if needed for this question. A mixture of helium and methane gases, in a…

A: Gases helium and methane is behave as a ideal gas - Ideal gas law equation is PV = nRT  Where , P is…

Q: How many moles of carbon dioxide gas will be created in 2.00 lol of KNO3 completely react ?

A:

Q: A sample of argon gas collected at a pressure of 546mmHg and a temp of 277k has a mass of 37.0…

A: Pressure =546 mmHg=(546/760) atm=0.718atm Temperature =277 K Mass= 37.0 grams Volume=?

Q: How many grams of carbon disulfide gas will be produced from a volume of 6.9L and a pressure of…

A: We know  the ideal gas equation is PV = nRT where P = pressure, V = volume, R = ideal gas constant,…

Q: 2. A cylinder with a moveable piston contains 1.12 mol of neon gas, and has a volume of 514 ml. What…

A: Avogadro law states that at a given temperature and pressure, the volume of gas is directly…

Q: A 10.0 g sample of O2 at standard temperature and pressure (STP) would occupy what volume in liters?

A: Given 10 g of O2 gas occupying at STP.

Q: 3. a. Magnesium solid reacts with 6 M hydrochloric acid to form magnesium chloride and hydrogen.…

A:

Q: If the temperature of 179.6 L of a gas at 64.9 C falls by 7.2 C, what is the new volume of the gas…

A: We know, at constant pressure; V1 / T1 = V2 / T2 where, V1 = initial volume T1 = initial temperature…

Q: Why do we use helium instead of hydrogen in balloons despite the fact that they both can "float" in…

A: Helium is inert in nature , in other words, it is incombustible and hence it will not catch fire.…

Q: A sample of krypton gas collected at a pressure of 758 mm Hg and a temperature of 296 K has a mass…

A: The objective of the question is to find the volume of a sample of krypton gas under given…

Q: A 1.00L sample of cooking has taken from a cylinder was collected. It’s mass, measured at 27 c and…

A:

Q: A sample of oxygen gas collected at a pressure of 761 mm Hg and a temperature of 291 K has a mass of…

A:

Q: What volume of carbon dioxide (CO2) will be produced if 2.90 moles of iron (Fe) is produced? [Note:…

A:

Q: volume

A:

Q: A sample of nitrogen gas collected at a pressure of 690 mm Hg and a temperature of 275 K has a mass…

A:

Q: Neon gas in a glass tube is used to make a glowing neon sign. On a hot day it operates at a…

A:

Q: A sample of oxygen gas collected at a pressure of 252 mm Hg and a temperature of 294 K has a mass of…

A:

Q: Neon gas in a glass tube is used to make a glowing neon sign. On a hot day it operates at a…

A: Apply Idea gas equation for calculating moles of neon gas

Q: 28.5 g

A: Mass of 1 square inch of air =14.7 psi   1 psi =453.592 grams   14.7 psi=   =14.7 x 453.592   =…

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.