x Incorrect. What property of the solution are you able to calculate using the density? Can this then be converted to a mass of C2H5OH? 254 mL C2H5OH (d = 0.789 g/mL) mol the tolerance is +/-5%

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A:

Q: Cite at least 2 situations or conditions that you do at home that can be correlated with the concept…

A: Dilution is a process in which we take few drops of a concentrated solution and add solvent to…

Q: Gaseous ethane (CH₂CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide (CO₂)…

A: Given,  The mass of ethane (CH3 CH3 ) = 2.1 g.  The mass of oxygen O2 = 9.80 g.  The maximum amount…

Q: If a solution of hydrochloric acid (HCl) has a density of 1.20 g/mL, how many moles would be…

A: Density = MassvolumeMass = Density × volumeDensity = 1.20g/mLVolume = 35.0mLMass =…

Q: How many daL of bromine are in 15.7 x 1022 molecules?  (The density of bromine is 3.1 g/cm3) The…

A: Given: The density of bromine = 3.1 g/cm3 We have to find How many daL of bromine are in 15.7 x 1022…

Q: Convert 15.8 mol Fe2(Cr2O7)3 to grams

A: Given :  No. of mole of Fe2(Cr2O7)3 = 15.8 Calculate : mass of Fe2(Cr2O7)3 = ? g

Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: A sample of a mixture of oxalic acid, H2C2O4, and sodium chloride, NaCl, has a mass of 4.554 g. If a…

A:

Q: The chemical formula for calcium hydroxide is: Ca(OH)2 Calculate the molar mass of calcium…

A: we need to calculate the molar mass of Ca(OH)2

Q: A student begins the experiment with a 0.5287 g sample of aluminum can. At the start of week 2, the…

A: Given:  Mass of Al = 0.5287g Mass of Potassium  KAl(SO4)2∙12H2O = 5.0109g

Q: 8.00 grams of sodium sulfate dissolves in water. This is then reacted with 8.00grams of calcium…

A: Given,mass of sodium sulfate ( Na2SO4 ) = 8.00 gmass of calcium chloride ( CaCl2 ) = 8.00 g

Q: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: In this problem, we were asked to determine the mol H2O/mol CaSO4 ratio given the masses of water…

Q: What is the molarity of a solution that contains 57.7 g Na2CO, in 4.00 L of solution?

A:

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Given, Chemical formula for acetic acid CH3COOH Moles of carbon = 30.3 mol

Q: Under certain conditions, the substances zinc oxide and water combine to form zinc hydroxide. If…

A: 1) Mass of Zinc Oxide =24.3 gm2) Mass of Water = 5.4 gm3) Molar mass of ZnO =81.38 g/mol4) Molar…

Q: A chemist adds 55.0 mL of a 0.22 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

A: The molarity of NiCl2 is 0.22 The volume of NiCl2 is 55mL Millimole=molarity×volume

Q: Adding helium to a balloon increased its volume from 309.1 mL to 1.695 L. If the final number of…

A: Given data,  Initial volume of helium gas in the balloon ( V1) = 309.1 mL = (309.1/1000) L = 0.3091…

Q: Lead II acetate and sodium sulfate Total molecular Total ionic Net ionic

A: The total ionic equation, is a chemical equation that shows all ions present in the chemical…

Q: A sugar solution contains 19% sucrose by mass. What is the mass of the solution if it contains 78.01…

A: Mass percent or weight percent of a solution is the mass of the solute by the mass of the solution…

Q: In the decomposition reaction,50.10 g of calcium chlorate was heated to produce calcium chloride and…

A: Calcium Chlorate is Ca(ClO3)2 Reaction: Ca(ClO3)2  --> CaCl2 (s)  + 3O2(g)

Q: Convert 3.97×1010 J to units of kcal.

A: By using relation between J and Kcal we can solve this problem. 3.97×1010J = 9.5 × 106 Kcal

Q: what is the percent by mass of sugar in a mixture that contains 157 g of salt, 1.215 kg of flour and…

A: Given, mass of salt = 157 g Mass of flour= 1.215 Kg 1 Kg = 1000 g 1.215 Kg = 1.215 x 103 g Mass of…

Q: A salt water solution is found to have a mass of 110.65 grams. If 1.35 grams of sodium chloride was…

A: Solution is made up of solute and solvent.

Q: Calculate the mass percent of a sucrose solution that is made by mixing 9.57 grams of sucrose into…

A:

Q: Nitric acid is added to a sample of zinc. Based on the following information, what is the…

A: Initial mass of Zn = 9.50 g Final mass of Zn = 3.23 g  Mass of Zn reacted = 9.50 - 3.23  = 6.27 g

Q: Convert 0.537 mol0.537 mol of ammonium (NH+4)(NH4+) ions to equivalents.

A:

Q: Chlorophyll has the chemical formula C55H72MgN4O5 convert 1.3 kilograms of chlorophyll to molecules

A: We're given the mass of Chlorophyll and asked to calculate the molecules of Chlorophyll.  Mass of…

Q: A 5.041-g sample of calcium is burned in air to produce a mixture of two ionic compounds, calcium…

A: Given:Calculate the mass of CaO and Ca3N2.

Q: Imagine you are working in a lab, and you want to prepare a solution of cobalt(II) chloride. You…

A: Given the mass of unknown hydrate of cobalt(II) chloride, CoCl2.xH2O = 1.0096 g mass of CoCl2(s)…

Q: A chemistry student is performing this reaction in a lab, in which magnesium is burned and combines…

A: Magnesium reacts with oxygen to form magnesium oxide. The equation for the balanced chemical…

Q: Convert 1.71×10−6 g to ng

A: It is required to convert 1.71 x 10-6 g to ng (nano-grams), which can be cone as,

Q: Aluminum hydroxide and anti-acid tablets neutralizes hydrochloric acid in the stomach. If 0.5 G of…

A:

Q: The chemical formula for diethyl amine is: (CH;CH,),NH Calculate the molar mass of diethyl amine.…

A: The chemical formula of diethyl amine is given as (CH3CH2)2NH.

Q: A student begins the experiment with a 0.5287 g sample of aluminum can. At the start of week 2, the…

A: Given: Mass of aluminium = 0.5287 g.   And the mass of potassium alum KAI(SO4)2.12H20 produced…

Q: Calculating ion molarity using solute mass A chemist prepares a solution of iron (II) bromide…

A:

Q: Concentrated acetic acid is 18.4 M; whereas white vinegar is 0.778 M acetic acid. How much…

A: Given information concentration of concentrated acetic acid, M1 = 18.4 M Volume of concentrated…

Q: If you receive a 5 mL vinegar sample that indicates 8% acetic acid, calculate the mass of acetic…

A: The objective of this question is to calculate the mass of acetic acid in a 5 mL vinegar sample that…

Q: Under certain conditions, the substances zinc oxide and water combine to form zinc hydroxide. If…

A: The question is asking us to find out the total mass of zinc hydroxide that will be formed when zinc…

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.