For a gas sample whose total pressure is 740 torr, what are the partial pressures if the moles of gas present are 1.3 mol of N2, 0.33 mol of 02, and 0.061 mol of Ar?

Q: STRUCTURAL FORMULA FUNCTIONAL GROUP IUPAC NAME CH, CH,CH;CH, CH, CH, CH,CH, || CH3 + CH2C – NH2 - CH...

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Q: : Synthesis the followiong reactions (five only). 1) Cyclohexyne + 2H, - PI (850-900)C 2) 3) CH,CH,C...

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Q: Draw the structure of the tripeptide alanyl-glutamyl-glycine (AEG).

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A: Given-> (d)-> bleach ,pH 12.5 - 13.5 (e) ->distilled water ,pH =7  

Q: What is the molar solubility of zinc hydroxide in a buffer that has a pH of 7.00? (K sp (Zn(OH) 2) =...

A: Please find your solution below : Molar solubility is defined as the number of moles of solute disso...

Q: The drawing below shows a mixture of molecules: key carbon O hydrogen nitrogen O sulfur oxygen chlor...

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Q: One QN not allowed. Replace not allowed with one that is allowed? a) n =3; l =3; ml = +2 b) n=2; l=1...

A: Which quantum number is allowed ?

Q: A solution may contain, chloride, carbonate, phosphate, and or sulfate ions. No effect is observed u...

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Q: what do we call a substance that is used to reveal whether a chemical is an acid or a base?

A: Substance that is used to reveal whether a chemical is an acid or a base

Q: You need to make an aqueous solution of 0.244 M iron(II) iodide for an experiment in lab, using a 50...

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Q: pls.ans.wer... ASAP. I really need help. you dont have to show all the steps but just

A: Select the pair of products formed in the electrolysis of a neutral solution of ZrCl4 (aq) using ine...

Q: What is/are the principle/s involved on ACIDIMETRIC ASSAY BY DOUBLE INDICATOR TITRATION?

A: Titration is a common laboratory method of quantitative chemical analysis to determine the concentra...

Q: find slope and intercept values log(v) log(p)

A:   log P versus log V plot is arrived from Boyle's law  PV = constant log P + log V = log K log P =- ...

Q: Consider the titration of a 40.0 mL of 0.153 M weak acid HA (Ka = 2.7 x 10-8) with 0.100 M LİOH. Wha...

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Q: A solution is prepared by mixing 400 mL of 0.500 M NH3 and 195 mL of 0.500 M HCI. Assuming that the ...

A: Given-> Volume of NH3 = 400 ml Molarity of NH3 = 0.500 M Volume of HCl = 195 ml Molarity of HCl =...

Q: The formula for the pH of a solution of hydronium ions is given by the logarithmic equation pH = - l...

A: pH = -log[H3O+] 

Q: (d) For the reaction shown below, provide the sequence of elementary steps (in a linear form, not a ...

A: To provide the sequence of elementary steps of the given reaction

Q: D. If the treatment used HNO3 (p = 1.51 g/mL) as the solvent during dissolution, and the density of ...

A: molality is one of concentration term  Here we are required to find the molality of Cd in 250 ml sol...

Q: The weak base methylamine, CH NH2, has K 4.2 x 10 It reacts with water according to the equation CH,...

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Q: Draw the skeletal (line-bond) structure of (R)-3-bromo-5,5- dimethylcyclohex-1-ene. Use a dash or we...

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Q: The limiting reactant in a reaction has the lowest ratio of moles available/coefficient in the balan...

A: Limiting reagents are the substances that are completely consumed in the completion of a chemical re...

Q: a) How many moles of ammonium bromide, NH,Br, would you need to add to a 100.0 mL solution of 0.250 ...

A: Here we have to determine moles of NH4Br to be added to the 100ml of 0.250M NH3 solution until pOH o...

Q: Suppose you would prepare a standard solution. What laboratory glassware you must appropriately use ...

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Q: Draw an energy level diagram for the orbitals involved in the lowest energy charge transfer transiti...

A: In the complex ZrMe2(SePh)2, zirconium (Zr), is the central metal ion. Zirconium has the following p...

Q: Answer the questions by writing the correct letter of your answer. Explain your answer briefly in 1 ...

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Q: A strong base, such as sodium hydroxide (NAOH), is added in a solution of 0.1 mol/L acetic acid (CH3...

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Q: Provide the IUPAC name for the condensed structural formula shown here. CH2 CH CH3 CH2-CH2 | H3C „CH...

A: In this question, we have to give the IUPAC name of the given compound

Q: Use properties of the Brownian motion to show that WK-1+p)at – W&-1)at) (Wkat – Wa-1+p)at) 4 atvp(1 ...

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Q: Calculate the concentration of sodium jons in solution after 30.0 mL of 3.35 M NaCI and 70.0 mL of 1...

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Q: The human eye can detect light at a frequency of 7.57×1014 Hz in the visible region of the spectrum....

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Q: 3.25 mL of Biomarker A (4.21 x 10-7 mol L-) was brought up to volume with deionized water in a 50 mL...

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Q: A mixture of HI, H2, and 1; in a closed container at 448 C has these initial partial pressures: H: (...

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Q: Consider the theoretical element Unquadnilium – 140, Uqn-140. With an atomic number of 140 Uqn  woul...

A: What is the principal quantum number, n, for Uqn-140’s last placed electron 

Q: From the given data below: ...

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Q: cite literature that gravimetric analysis is used to test the purity of squash soup product

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Q: Select the correct way of disposal. Non hazardous substances in small amounts can be disposed in the...

A: Calcium sulphate dihydrate is a white crystalline solid which is odourless and is known as gypsum.

Q: Compute for Ecell of the ff. Pairs using nerst equation given that E°cell is -0.76 V for the Zn2+ /Z...

A:   Nernst equation is given as: Ecell = Ecell0 -RTnF ln [P][R] EZn2+/Zn0  = -0.76 V ECu2+/Cu = + 0.34...

Q: . Differentiate Precipitation from Agglutination reactions based on:      a. Time duration of the p...

A: Differentiate Precipitation from Agglutination reactions based on:      a. Time duration of the proc...

Q: Test for SO,* ion Take for instance you have a test solution and you will add 6 M HNO, drop by drop ...

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Q: 8.) Based on the reactions: :1.) 211,S + 30 2SOe + 2H,0) AH, =-1035.94 kJ 2SO + Oe AH, = +197.78 k.J...

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Q: Which of the following is the least soluble in water? Select one: O a. NaCl (sodium chloride) O b. N...

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Q: A 5.70 g iron ore was dissolved in concentrated HCl. After the dissolution, the resulting solution w...

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Q: a) A solution was prepared water to give 1 L of solution b) to this solution was addec

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Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen O sulfur oxygen chlorin...

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Q: A 1.00 L buffer solution is 0.200 mol L-1 in C6H5COOH and 0.250 mol L-1 in C6H5COOLI. The Ka for C6H...

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Q: 8. A gas composed of methane and ethane has a specific gravity of (0.75). What is the weight percent...

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Q: What is the most commonly used fuel for FAAS, acetylene-N20 or acetylene-air?

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Q: In a copper lamp used in Flame Atomic Absorption Spectroscipy, the copper metal inisde is the Cathod...

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Q: The concentration and absorbance data below were collected for compound X. A sample of compound X of...

A: The concentration and absorbance data below were collected for compound X. A sample of compound X of...

Q: What is the molar solubility of zinc hydroxide in a buffer that has a pH of 7.00?(K sp (Zn(OH) 2) = ...

A: Given Data, pH= 7.00 Ksp of Zn(OH)2=3.0×10-17 Molar solubility of Zn(OH)2= S = ?

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.