Q: 1. How many liters of oxygen, at STP, can be obtained from 100g of potassium chlorate? 2KCIO, → 2KCI...
A: These type of questions are solve using mole concept. Let us solve this step by step. Mole= volume/2...
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Q: if ammonia is added with cupric oxide,how many moles of gas is produced from 6 moles of cupric oxide
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Q: An unknown compound has the molecular formula C6H12O2. The compound shows a strong peak in its IR sp...
A: molecular formula C6 H12 O2 IR Spectrum - 1700 this peak is due to C=O stretching
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A: given :- concentration of stock solution = 6.00 M concentration of dilute solution = 0.325 M volu...
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Q: You started with 1.000 g of unknown and isolated 0.9550 g of metallic Cu. What is the calculated for...
A: So,we have 0.995 g of Cu, Therefore, we must have 0.005 g of something else (Let it be x) Weight rat...
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Q: A 22.0 g block of copper at 45'C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 Ng-...
A: given :- mass of Cu = 22.0 g specific heat of Cu = 0.385 J/g°C initial temperature = 45 °C heat ...
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A: Limiting reagent are the reactant species which get consumed completely during the reaction.
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A: To solve this problem we will use the given rate law .
Q: Zinc metal reacts with HCI according to the following balanced equation: Zn(s) + 2HCI(aq) --> ZnCl2(...
A: Given : volume = 47.0 ml density = 1.03 g / ml specific heat = 4.184J /g°c temperature change of sol...
Q: 1.How many grams of disodium EDTA is needed to prepare a 350mL solution? 2.What is the molecular w...
A: Experiment is about EDTA.
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Q: You have been asked to characterize benzoic anhydride by IR spectroscopy. Unfortunately, your labora...
A: ATR probe is inserted directly into the sample and it can measure spectral properties without the ne...
Q: When 0.7521 g of benzolc acid was burned in a calorimeter contalning 1,000. g of water, a temperatur...
A: Given data: Mass of benzoic acid = 0.7521 g Heat of combustion of benzoic acid = - 26.42 kJ/mol Mass...
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Q: What is the structures of the compounds with the NMR data below? 1. C9H1204S
A: The given compound is: C9H12O4S
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Q: Determine how many grams of each of the following solutes would be needed to make 2.50 x 102 mL of a...
A: Molarity = moles ÷ volume (L) Mole = molarity × volume (L) Mass = mole × molar mass
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Q: For a Hydrogen Atom these energies can be calculated by the following equation: Lan he -- Ar - R R-2...
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A: Given : Volume of buffer solution = 500 ml Concentration of HNO2 = 1.0 F Concentration of NaNO2 ...
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A: Since you have posted more than one question, we will solve only first question for you. If you want...
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Q: NH2NH2 ? H Mild Acid N-Me Vicodon Мео. Мео. H H N-Me H* H N-Me N NH2 Me HN в A Meo, Meo. H H N-Me H ...
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Q: A sulfuric acid (H2SO4 d=1.83g/mL) aqueous solution having 5.8321 Molar Concentration with a density...
A: The mole of solute present in a one-liter solution is known as the molarity of the solution. The mol...
Q: Click in the answer box to activate the palette. Balance the equation representing the reaction betw...
A: First balance both side atoms then finally balance the equation .
Q: Write balanced equations for the dissolution reactions and the corresponding solubility product expr...
A: We have to find the expression for solubility product.
Q: 45.00 mL of 0.010 M HCI(aq) was mixed with 65.00 mL of 1.0 M Ba(OH)2(aq) in a Styrofoam cup calorime...
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Q: Draw the Lewus structure for the following atoms and assign the correct number of valence electrons ...
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Q: In an atom, what is the maximum number of electrons that can have a principal quantum number n = 6?
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Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...
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Q: 16.04g
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Q: Bond angles Dipole moment Formula Molecular structure IF3 PF5 KrF4 >
A: Since you have posted question with multiple sub-parts, as per guidelines we will solve only first t...
Q: Question 2 Based on the reaction below, which direction would the following changes to the reaction ...
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Q: A technician is producing hydrogen gas. He adds methane gas, steam, and a nickel catalyst to an empt...
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Q: Enter your answer in the provided box. 35 The atomic masses of the two stable isotopes of chlorine, ...
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Q: А. В. b. Now consider the two molecules A. and B. Note that A. is a dianion and B. is a neutral mole...
A: This is the concept of aromaticity.
Q: Fe + H2S04 ? Fe2(SO4)3 + H2
A: Here in the question there is no instruction to do.By guessing as it is an unbalanced chemical equat...
Q: Determine the number of hydrogen atoms.in a compound which has 4 rings and 8 double bonds. C22H2N2O8
A: Given: Number of carbon atoms in the compound = 22 Number of nitrogen atoms in the compound = 2 Numb...
Q: Be sure to answer all parts. Use the table to calculate AG for the following reactions at 25°C. Spec...
A:
Q: A sample of lead ore has a density of 8.80 g/mL. It is composed of two lead compounds: lead oxide, P...
A: Density of lead oxide = 9.10 g/ml Density of lead selenide = 8.10 g/ml Density of lead ore = 8.80 g/...
Q: Place an asterisk by each stereocenter in the molecules depicted below. Note that if this were an ex...
A: Stereocentre is the particular carbon centre in which groups are attached that orient in different d...
Q: A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate form...
A: Answer: This question is based on qualitative analysis of basic radicals where we have to study the ...
Q: 3. Consider the reaction shown below and the tabulated experimental data on initial rates. A +B+2 C ...
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Q: metal orbital that interact with Y3 of cyclobutadiene are * O dx2-y2 O dxz O px O dyz
A:
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- Both AgCl and Agl dissolve in NH3.. (a) What mass of AgI dissolves in 1.0 L of 1.0 M NH3?. (b) VNhat mass of AgCl dissolves in 1.0 L of 1.0 M NH3?0.0585 g Na2C2O4 10 mL to adjust KMnO4 solution prepared in 0.1 M'pure water, 2 M H2SO4 added, heating process and 8.4 mL titrant as a result of titration it's spin out. Calculate the actual concentration of potassium permanganate accordinglya) What mass of Fe(NH4)2(SO4)2•2H2O(s) is required to prepare a 500 mL solution containing 100 ppm (m:v) in Fe? b) Using this stock solution, what aliquot must be used to prepare calibration solutions, 100 mL volume, of the following concentrations: 0.100 ppm, 0.500 ppm, 2.00 ppm, 4.00 ppm, and 7.00 ppm.
- What volume of concentrated ammonia should be used to prepare 200 ml of 0.600 M solution?Purity 28% w/wdensity 0.9 g/mlAspirin powder = 0.8110g MW of Aspirin = 180g.mol-1 Volume of 0.5N HCl consumed in back titration = 23.50mL Volume of 0.5N HCl consumed in blank titration = 44.50mL Percent purity (USP/NF) = Aspirin tablets contain NLT 90.0% and NMT 110.0% of the labeled amount of aspirin (C9H8O4) What is the calculated weight (in grams) of pure aspirin?..3 L contaminated air 50 mL 0.0116 M in an air pollution analysisCarbon dioxide (CO2) BaCO3 is passed through Ba (OH) 2 solution.is precipitated as. Excess of base, next to phenol phthalate (f.f.) indicatorIt is titrated with 23.6 mL of 0.0108 M HCl. CO2 in this air sampleCalculate its concentration in ppm. (Density of CO2Take it as 1.98 g / L. C = 12, O = 16 g / mol).
- You are to make 300mL of 20mM EDTA buffer (C10H16N2O8) solution from powder. How much EDTA powder must be dissolved in water? [Atomic Weight: C = 12.011; H = 1.0079; O = 15.999; N = 14.0067]100.0 mL of 0.60 M aqueous Pb(NO3)2 is mixed with excess aqueous KI. What mass of precipitate is formed?400 g sample containing chloride ions (MW=35.45 g/mol) was dissolved in 50.0mL of distilled water. A 15.0 mL aliquot was taken, and was further diluted to 50.0 mL using distilled water. The diluted solution was then titrated using a 0.0989 M AgNO3 solution, and it consumed a total of 31.9 mL of the titrant in order to reach the end point. What is the concentration of the undiluted chloride solution? Round off to three (3) significant figures. What is the % (w/v) concentration of the undiluted chloride solution? Round off to two (2) decimal points. What is the % (w/w) of Cl- composition of the sample? Round off to two (2) decimal points.
- What is the mass percent of Fe for each trial ? Mass of (NH4)2Ce(NO3)6 (in 100.00 mL) = 4.5038 g Mass of unknown (in 250.00 mL) = 10.000 g Trial # Volume of unknown solution (mL) Titration Volume (mL of Ce4+) Mass Percent(% Fe) 1 25.00 mL 7.20 mL 2 25.00 mL 7.40 mL 3 25.00 mL 7.60 mL 4 25.00 mL 7.50 mLThe solutbility constant for Ce(IO3)3 is 3.2x10^-10. What is the Ce3+ concentration in a solution prepared by mixing 50 mL of 0.0450 M Ce3+ with 50 mL of: A.) 0.0450 M IO3- ? B.) 0.0500 M IO3- ?instead of dissolving Ag2SO4 (ksp = 7.8x10^-11) in water, you decide to dissolve it in a 2.0x10^-2 mol/L solution of AgNO3. What is it's solubility in this solution?