If the mole ratios in your calculations were not whole numbers, what are the possible sources of error? What improvements could you make to your procedure?

Q: What are replicates in Analytical Chemistry? O The component of a sample that repeats over different…

A: Analytical chemistry is the repeated analysis of a single sample and is a measures of the greatest…

Q: 2 Ba(s)   +    O2(g) →  2 BaO(s)                                       MASS DATA Mass of Crucible…

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Q: You have a sample of neon (Xe) that contains 1 mole of atoms. If the diameter of a xenon atom is 216…

A: We have given 1 mole of xenon(Xe) gas having each atom a diameter of 216 pm. And we have asked to…

Q: Assume that vinegar is 5% acetic acid (by mass) at a density of 1.01 g mL-1.  This means that 100 mL…

A: The answer is given below

Q: If you do not heat your crucible strongly enough to remove all volatile impurities when you heat the…

A: The loss of water happening during the inital heating or during the second heating is not relevant

Q: A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What…

A: 1: Candle is placed on one pan of a balance and an equal weight is placed on the other pan. To…

Q: Al + HBr AIBR3 + H2

A: Stoichiometry is quantitative relation between number of moles of reactants and products.  Chemical…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.66 mL sample taken…

A: Given data,Volume of H2SO4=6.66mLVolume of water=50mLMolarity of NaOH=0.4643MVolume of NaOH=31.52mL

Q: 1a. Throughout the experiment, what are some possible sources of error that could have led to…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: 3. While determining the volume during this experiment (Part II), if the total volume of the flask…

A: If the volume of the flask was 125 ml instead of the measured volume, the calculated molar mass of…

Q: A sample of feldspar (feldspars are the most abundant mineral group on Earth) was analysed that…

A: From a sample of feldspar weighing 1.0600 g, a mixture of chlorides of sodium and potassium was…

Q: A chemist adds 1.50L of a 4.3x10−5/mmolL silver(II) oxide AgO solution to a reaction flask.…

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Q: Calculate the number of Liters of Fe>O3 could be produced from 3.46 moles O2 4 Fe + 302 → 2 Fe203

A: From the reaction it is clear that four moles of Fe reacts with three moles of O2 to form two moles…

Q: 1)A solution of Na2CO3 is prepared by dissolving 0.511 g of the solid in approximately 30 mL of…

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

Q: compound contains only Mn and F. The ratio of Mn and F is 1.73 moles of F per 1 mole of Mn.  If the…

A: Given Empirical formula of Compound is MnFx Molar ratio of Mn and F is 1.73 We have to determine…

Q: The rock in a particular iron ore deposit contains 69% Fe2O3 by mass. Part A How many kilograms of…

A: We will first calculate the mass of Fe2O3 required in order to get 4.1x103 Kg of iron. After…

Q: I. BOILING POINT ELEVATION: The temperature of a boiling 50 mL of distilled water in an Erlenmeyer…

A: When a non-volatile solute is added to a solvent the boiling point of the resultant solution is…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Hi, as you have posted 2 questions and have not mentioned which one you want us to solve for you.…

Q: a) Calculate the molar ratio of carbon / hydrogen in the fuel and use the result to prove that the…

A: (A) -- When methane (natural gas) is burnt  CH4+2O2  →  CO2 +  2H2O16 gm              44 gm    36 gm…

Q: Gaseous butane (CH3(CH2)2CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

A: 2C4H10 + 13O2 = 8CO2 + 10H2O

Q: The sulfur in an 8-tablet sample of the hypnotic drug captodiamine, C21H29NS2 (359.6 g/mol) was…

A: A numerical problem based on mole concept that is to be accomplished.

Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: When we need sample preparation for analysis? use your own words to write

A: 1) Preparation is a very important step in most analytical techniques because the techniques are…

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

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Q: 6. A student reported the following percentages for his unknown mixture: 25% NH4CI, 30% NaCI, and…

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Q: carrying out Part 1 of this experiment, assume an excess of HCl(aq) reacts with 0.426 g of Mg(s). If…

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Q: A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate…

A: Volume of water = 100.0mL  Volume of dilute nitric acid = 10.0mL Total volume = 110 mL  Density of…

Q: If you place 6.46 X 1027 molecules of Ca(OH)2 into this equation, how many moles of Ca(NO3)2 will be…

A: Given: The reaction is as follows: 2HNO3+CaOH2→CaNO32+2H2O The number of molecules of…

Q: The relationship between ppm with M and N: ppm = M x M.mass x 1000 ppm = N x Eq.mass x 1000 %3D

A: ppm stands for "parts per million" and it also can be expressed as milligrams per liter (mg/L). This…

Q: For accurate measurements of unknown quantities, which concentration range - dilute or concentrated…

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Q: Iodine (I) and fluorine (F) form a series of binary compounds with the following…

A: (a)

Q: A 5.000 g of metal ore is dissolved in 20.000 mL of acid (density 1.840 g/mL). The mass of the…

A: Mass of metal = 5.000 g Volume of acid = 20.000 mL density of acid = 1.840 g/mL Calculation of mass…

Q: In dilutions the amount of solute is held constant, but the volume is changed. Since…

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Q: You are given pure serine in powder form, and you are asked to make exactly 20 mL of a 20 μM…

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Q: Pyrite (FeS2) can be leached by oxygen in sulfuric acid solution to form ferric sulfate. Write the…

A: A balanced reaction is the reaction in which equal number of atoms are present on both the sides of…

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Given : concentration of KI used = 0.010 M Volume of KI solution used = 5.00 mL = 0.005 L…

Q: Brand of vinegar or unknown no. Colauita White Wine Trial 1 112 2803 Trial 2 Trial 1 Trial 2…

A: Given: mass of vinegar, moles of NaOH are in above table. molar mass of CH3COOH = 60.052 g/mol

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A:

Q: The mass of an empty evaporating dish is 42.48 g. A sample of the hydrate KAl(SO4)2 x XH2O is added…

A: To Solve this problem first we have to calculate the mass of water hydrated then we will calculate…

Q: 4. A new procedure for the determination of sulfur in coal was tested on a standard coal sample with…

A: By applying t-Test we can figure out whether the new procedure gives correct or incorrect results.

Q: If the crucible originally weighs 3.715 g and 2.000 g of hydrate are added to it, what is the weight…

A: Given : Mass of crucible = 3.715 g Mass of hydrous salt = 2.000 g And mass of anhydrous salt with…

Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

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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.