What is the mole fraction of O2 in a mixture of 6.00 g He, 19.0 g O2, and 21.0 g N2?     0.608     0.253     0.410     0.209     0.267

Q: At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH₂) and propane (C₂H₂) was burned, producing…

A: We have to calculate the mole fraction of methane and propane

Q: 152. Dalton law states that the partial pressure of a gas in a mixture of gases is _____ to the…

A: The correct option is option b) directly related to the concentration of the gas in the mixture and

Q: The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036…

A: Given: Mole fraction of O2 = 0.036 mol. Mole of fraction of N2 = 0.056 mol. And mass of He = 8.13 g.…

Q: What is the mole fraction of O2 in a mixture that is 79.0 mole N2 and 21.0 mole O2? Carry only 1…

A: Given:The number of moles of nitrogen is 79.0.The number of moles of oxygen is 21.0

Q: What is the molality of KNO3 in a solution prepared by dissolving 0.168 moles of KNO3 in 72.8 g of…

A: The molality is defined as the number of moles of solute dissolved in per kg of solvent.=>…

Q: A gas mixture has a molar composition of 10% H2, 10% O2, 30% CO2 and balance H0. What is the molar…

A: Given: The molar compositions of H2, O2 and CO2  are 10%, 10% and 30% respectively.

Q: 6. What is the mole fraction of calcium chloriIde in 3.35 m CaCl, (aq)? The molar mass of CaCl, is…

A: Given: Molality of CaCl2 = 3.35 m Molar mass of water = 18.02 g/mol

Q: A steel cylinder contains 5.00 moles graphite (pure carbon) and 5.00 moles O2. The mixture is…

A: Given: Moles of graphite= 5.00 mol Moles of Oxygen =5.00 mol The pressure of the cylinder increases…

Q: A sample contains 18.0 g N2 (MW = 28.02 g/mol), 50.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW =…

A:

Q: CaCO3(s) + 2HCl(aq) --> CO2 (g) + H2O (l) + CaCl2 (aq) What is the molarity of a HCl solution if…

A: The molarity of the solution is defined as the ratio of no of moles of solute to that of volume of…

Q: A 55-g sample of a gaseous fuel mixture contains 0.50 mole fraction propane, C3H3; the remainder of…

A: Mole fraction- ratio of number of moles of component (solute or solvent) present in solution to the…

Q: 1.  What is the mass (g) of NaCl in a 0.500 L bottle of 2.00 M NaCl?

A: The molarity of the NaCl solution is = 2.00 M The volume of the solution is = 0.500 L The mass of…

Q: Limestone rocks are composed mainly of calcium carbonate (CaCO3) that reacts easily with a…

A:

Q: The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: What is the mole fraction of substance B (ethanol) in a mixture that is 58.4% weight

A: If total mass of mixture = 100 g  Then  Mass of water = 58.4 g Mass of Ethanol = 100-58.4=41.6 g…

Q: An aqueous solution is 12.0 % by mass silver nitrate, AgNO3, and has a density of 1.11 g/mL. The…

A:

Q: The Normality of concentrated sulphuric acid is ---(when p% =96% , d = 1.84 g./ml) O 3.6 O 18.02…

A:

Q: The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036…

A: Since the mass of component = mass of sample X mole fraction of sample  Hence mas of oxygen  = mole…

Q: Mass→Mass & Mass→Vol : Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and…

A: The balance chemical equation for reaction between zinc carbonate and citrate is as follow…

Q: What is the mole fraction of 1.17 m KBr (aq)?

A: molality of KBr = 1.17 mmole fraction =?molality of KBr = 2.37 mmole fraction =?

Q: At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3Hg) was burned, producing…

A:

Q: Mass→Mass & Mass→Vol : Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and…

A:

Q: Consider the complete combustion of glucose (C6H12O6) with O2 and calculate the moles of CO2produced…

A: Given, Mass of glucose, C6H12O6 = 1.02 g Volume of O2 , V = 25 mL = 0.025 L   (1 mL = 0.001 L)…

Q: 4.00 mols of NH3 and 4.00 mols of H2S are placed in an 8.00 L reaction vessel and the mixture is…

A: The equilibrium constant of a reaction can be given be the concentration of product to the…

Q: How are parts by mass and parts by volume used in calculations?

A: Parts by mass and volume in calculations:Parts by mass and parts by volume are units of expressing…

Q: Carry only 1 decimal point on all atomic weights (X.X). What is the mole fraction of O2 in a mixture…

A: Given : Mass of N2 = 283.6 g Mass of O2 = 145.1 g And mass of CO2 = 5.111 g

Q: How many moles of aluminum nitrate are required to prepare 3.00 L of 0.0065 M solution?

A:

Q: 4 NH3 (g) + 5 O2 (g) →→ 4 NO (g) + 6 H2O (l) What is the mole-mole factor (ratio) of H2O to NH3?

A: Mole ratio

Q: A 1.35 mol gas sample occupies a volume of 345 mL. How many additional moles of the gas must be…

A: if temperature and pressure are constant, the number of particles is proportional to the volume.

Q: Acetic acid dissolves in water as a weak acid. Calculate the mole fraction of acetic acid in the…

A: Mole fraction is the ratio of number of moles of specific compound in solution to the total moles in…

Q: Please complete the following table. For each of your trials, enter the volume of commercial vinegar…

A: To determine the Molarity of acetic acid for each trial based on the given data.Average Molarity of…

Q: mixture of NaOH, NaCL and MgCl2 contains 34.6% by mass chloride and 20.0% by mass hydroxide. What…

A: From the hydroxide mass we can calculate the moles of Hydroxide and hence the moles of NaOH. And…

Q: Part A. Multiple Choice Identify the choice that best completes the statement or answers the…

A: Given:  Pressure  = 0.982 atm  Height of mercury in barometer = 0.746 m  Density of mercury = 13.5…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.