A sample of 0.262 mol of a metal M reacts completely with excess fluorine to form 20.5 g of MF2. What element is represented by the symbol M? (Give its symbol).

Q: a. tor each pair, State and explain which is more basic: (7) (i) )

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Q: 1. Draw a line on the IR spectra below and label the functional group region and the fingerprint…

A: The 500 - 1500 cm-1 region is known as fingerprint region where 1500- 4000 cm-1 region is well-known…

Q: 2. Will PbSO4 be more or less soluble as the pH of a solution is raised? a. More soluble b. Less…

A: Given: The salt PbSO4.

Q: Suppose a 250. mL flask is filled with 1.6 mol of Cl,, 0.60 mol of HCl and 1.0 mol of CCl. The…

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Q: Why is it 2x^2 instead of just 2x ?

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Q: Give a clear handwritten answer....?

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Q: What is the oxidizing agent? 40H + Br2 BrO2 + Br* +2H2O (basic solution) O OH O Hin H;0 O Br O Br in…

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Q: HC23O5- (hydrogen MadeUppium ion) can swing both ways, acting as an acid or a base, which would make…

A: Bronsted-Lowry theory of acids and bases :-  According to this theory, Acid is a species which can…

Q: SICI4 (g) + 2 H,O(e) → SiO2 (s) + 4 HCI(g) C. Standard entropy for some substance given below.…

A: Since,  ∆G = ∆H - T∆S  Reaction is entropy favoured when ∆S is positive because that will help in…

Q: When the Ag+ concentration is 5.60×10-4 M, the observed cell potential at 298K for an…

A: Given-> Concentration of Ag+ = 5.60 × 10-4 M Ecell = 2.972 V

Q: Which of the following equations does not represent an oxidation-reduction reaction? Pick the best…

A: You have asked multiple type questions, we will solve only first  questions for you. If you want any…

Q: 13C NMR Spectrum (100.0 MHz, D20 solution) Y X proton decoupled 200 160 120 80 40 0 (ppm) 3 1H NMR…

A: Number of signals in 1H NMR: Tells us how many sets of protons with different electronic environment…

Q: The electromotive force f the half cells at 25 čs Ag / Ag Ag/ Ag Br 0-8V -0.071V calculate:…

A: Given: Ag/Ag+ = -0.8 V,   Ag/AgBr = -0.071 V Efficiency constant = 0.9 Two half reactions for the…

Q: An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 482 g…

A: Nuclear decay follows 1st order reaction.  Given the half-life of C-14, t1/2 = 5730 year…

Q: 7.) needed, then indicate with a 1./2., etc., as appropriate. In several instances, there is more…

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Q: A chemical engineer is studying the two reactions shown in the table below. In each case, she fills…

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Q: Fine-crystalline yellow powder is: A. Codeine B. Chinozol C. Ethylmorphine hydrochloride D.…

A: Codeine- It occurs as odourless colourless crystals or white crystalline powder. ***Chinozol is not…

Q: What is the most probable speed of a gas with a molecular weight of 20.0 amu at 50.0 °C? A) 518 m/s…

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Q: Maxwell presented by Macmillan Learni Complete the mechanism for the decarboxylation given by adding…

A: The mechanism of decarboxylation is given below

Q: Please explain in detail

A: As we have to do only one out of the two questions i am explaining the second one. We can understand…

Q: How to make 250g of solution of 5% KCl from solid KCl

A: The solution concentration in terms of percentage of mass.  The formula and calculation given below

Q: The mass percentages of H and O in a compound used for bleaching are 5.9% H and 94.1% O. The molar…

A: Given:: %H=5.9 % , molar mass of H= 1 g mol-1 % O = 94.1% , molar mass of O= 16 g mol-1 molar mass =…

Q: pose an efficient synthetic round for the following transformation. Use only the reactions that we…

A: We have to carry out the given transformation.

Q: Can u make 10 formulas made of compounds ONLY? The formulas had to be from the house like the…

A: Answer: In everyday life we use various substances those are made of certain type of compounds.

Q: What is the voltage of the following cell? Use the Reduction Potential Table found in Chapter 17…

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Q: :0: CH H2O Draw H3C Intermediat e nucleophilic addition H2O deproton ation H3O* Draw H- H…

A: The given mechanism is known as acetal hydrolysis or deprotection of carbonyl compound in acidic…

Q: ow many grams of tartaric acid and sodium tartrate must be added to 1L of water to produce a…

A: Given: Total solute concentration = 0.5 mM = 0.0005 M                            (Since 1 M = 1000…

Q: Consider the following decay: 223 Fr - 219 At + a. 223 Fr has a mass of 223.0197359 u, 219 At has a…

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Q: Q/Find the molecular moment of inertia H20 about the binary spin axis, if you know that O- H = 95.7…

A: Moment of inertia I is calculated using the equation I=∑imixi2 where xi​ is the perpendicular…

Q: glass container was containing 1.50 moles of a gas sample at 5.00 atm and 21.7 °C was heated to…

A: Given,  Mole (n1) =  1.50 moles  Pressure (P1) =5.00 atm   Temperature(T1)=273 + 21.7 = 294.7 K…

Q: How many grams of citric acid and sodium citrate must be added to 1L of water to produce a solution…

A: Buffer solution: A buffer solutions is an aqueous solution consisting of a mixture of a weak acid…

Q: Gold - 198 is used in the diagnosis of liver problems. If the half-life of Au - 198 is 2.69 days:…

A: The correct answer is given below

Q: What is the balanced equation and solubility product equation for the dissolution of potassium…

A: Given : formula of compound

Q: Please answer with detailed mechanism and choose the reagent in all the steps.

A: The sequences of reaction given below

Q: Find the percent ionization of a 0.101 M HC1O solution at 25°C. (The value of Ka for HC10 is 2.9 x…

A: Given: Concentration of HClO = 0.101 M

Q: The vapor pressure of toluene at 298K is 3728.76 Pa, and the vapor pressure of benzene at 298K is…

A: Answer: Given data: P°toluene=3728.76PaP°Benzene=12665.63Pa   Mass % of toluene=60%Mass % of…

Q: A capillary of 10 cm long is introduced into a beaker containing hydrochloric acid at 25 C. Upon…

A: Given: Height of capillary tube = 10 cm Upon dipping 1 cm in beaker of HCL, rise = 8 cm in capillary…

Q: A mixture of three gasses (H2, Br2 and Cl2) has a total pressure of 58.6 atm. The pressure of Br2 is…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: Select the reagents for the following transformation. H- E-H Br Please enter your answer as a string…

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Q: How to make 1L of 0.25M NaOH from solid NaOH

A: How to make 1L of 0.25M NaOH from solid NaOH ?

Q: Question 8 A scientist tests the water in a local pond and finds that it has a pH of 7.9. Based on…

A: pH actually means the potential of hydrogen. That is the concentration level of H+ determine the pH…

Q: b. tor each palr State whetner theyare resonance, Znantiomer, diastereomers structural isomers or…

A: Concept:  Resonance structure: If two molecules have same structure but only electronic distribution…

Q: Balance the reaction between cl* and HXe04¯ to form Xe and Cl, in basic solution. When you have…

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Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…

A: Here, we have to find whether a precipitate will form or not when the given aqueous solutions of A…

Q: pH

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Q: 28.3 mL aliquot of hydrocyanic acid that has a concentration of 0.495 M will be titrated with 1.27 M…

A: Given,  Ka = 4.96 x 10-10. pKa = 9.30 Volume of HCN = 28.3 mL Concentration of HCN = 0.495 M Volume…

Q: 2. Circle and name all functional group(s) for each molecule H. CH3 C= a. H. H3C (CH2)4CH3 .C. H;C…

A: A group of atoms responsible for the characteristics reaction of a particular compound is called…

Q: 9) Draw a picture of what happens to the formula units in the following aqueous solutions. Do not…

A: Solution -

Q: As discussed in class, the Haber-Bosch process for ammonia production proceeds via the reaction,…

A: The reaction given is, Given: Both entropy change and the enthalpy change is not changing between…

Q: mass percent

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".