The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side to span a distance of 3.80 mm? atoms

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Q: Rank the pKa values of the conjugate acids for nosylate, tosylate, and brosylate

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Q: CaSO4 has a Ksp = 3 x 10-5. In which of the following would CaSO4 be the most soluble? pure water…

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Q: Each of the insoluble salts below are put into 0.10 M hydrochloric acid solution. Do you expect…

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Q: A second order reaction has a rate constant of 2.82 x 10-2 M-1s-1. What is the concentration of the…

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Q: Use the IUPAC Nomenclature System to name the following ester: CH,—CH,-C-0-CH,

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Q: A solution contains 7.17x10-³ M ammonium carbonate and 9.40×10-³ M potassium hydroxide. Solid…

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Q: Predict the products of this organic reaction: ? CH3-C-O-CH2-O-CH3 nghi KOH Specifically, in the…

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Q: Calculate the number of militers of 0.628 M KOH required to precipitate all of the A1 ions in 197 ml…

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Q: According to valence bond theory, when a double bond is formed: Select True or False.   1. The…

A: Valence Bond Theory (VBT) is a chemical bonding theory that explains how atoms form chemical bonds…

Q: 1. Rank the following acids in order of increasing acid strength: HBrO3, HBrO4, HIO3 and HCIO4. Give…

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Q: What is Flame Test? What is your observations about this flame test experiment? What is your own…

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Q: Consider the reaction and its rate law. 3 A +3B → products What is the order with respect to A? 0…

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Q: In the dilution of Solution B, if the original stock solution has a concentration of 0.8 M, what is…

A: Given: Concentration of stock solution = 0.8 M Volume of stock solution = 10 mL Water added = 6 mL

Q: A solid catalyst that is added to a gas phase reaction would best be classifies as a(n)…

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Q: Which of the following statements relating to the quantum numbers n and I applies to the orbitals…

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Q: Increasing the temperature of a reaction will increase a reaction rate by increasing which of the…

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Q: A student needs to prepare a buffer made from HCIO and NaClO with pH 7.818. If Ka for HCIO is 3.50 ×…

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Q: A voltaic cell is constructed with two Ag+-Ag electrodes, where the half-reaction is Ag+(aq) + e– →…

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Q: Select the number of electron groups and lone pairs and use VSEPR theory to determine the shape of…

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Q: Advantame is often used as an artificial sweetener. In the structure of advantame shown, highlight…

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Q: Complete the table with 3 Major IR peaks. the IR SPECTRA of 4-hydroxy, 3-iodoacetophenone.  please…

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Q: 2NO -->N2O2 slow           N2O2 + O2 --> 2 NO2 fast           2 NO + O2 --> 2NO2        Determine…

A: Given, the reaction mechanism: 2NO → N2O2  (slow) N2O2 + O2 → 2NO2  (fast) The overall reaction is:…

Q: 2. If the reaction below is initially at equilibrium, and then each of the following changes are…

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Q: Ionic Bonds Worksheet PART A- Valence Electrons and Charges: Complete the following table. Element…

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Q: Compare the solubility of barium phosphate in each of the following aqueous solutions: 0.10 M…

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Q: Compounds containing transition metals - 2 possible products can form for each possible valence. Cu…

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Q: Calculate the value of the free energy change, AG, for the reaction below at 227.0°C when the…

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Q: Phosphoric acid is polyprotic with the following Ka values: H3PO4 Ka₁ = 7.52 x 10-³ H₂PO4 Ka2 = 6.23…

A: Answer:  Given Ka values of Phosphorus acid which is a polyprotic acid -                  Ka1=…

Q: A 100.0 mL sample of 0.10 M Sr(OH)2 is titrated with 0.10 M HBr. Determine the pH of the solution…

A: Sr(OH)2 is a strong base and HBr is a strong acid. So, we have to do the strong-acid strong-base…

Q: Ok. I'm still not sure what the chloro benzene is used for?

A: It is a follow up question.

Q: Consider the "pseudohalide" leaving groups, a family of compounds with humorous names commonly used…

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Q: A strong acid is titrated with a strong base. Which of the following pH values can be determined…

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Q: The molar solubility of magnesium carbonate in a water solution is M.

A: The value of Ksp of MgCO3 is 3.5×10-8.

Q: Wittig Reaction HW2. Next week, you will convert the methyl-trans-cinnamate you made into…

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Q: line is observed at 1.88 X 103 nm in an emission spectrum. This line may be due to a transition from…

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Q: (i) You have been provided with a sample collected from a water pool beside a slag heap at the iron…

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Q: Which of the following molecules is not observed in nature? A 2-03PO B 2-03PO OH OH NH₂ N N O N NH C…

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Q: scheme. CH3 CH3 SE 1. HNO3, H₂SO4 2. Br₂. Fe NO₂ You do not have to consider stereochemistry. You do…

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Q: The Solubility Product Constant for lead phosphate is 3.0x10-44. If lead phosphate is dissolved in…

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Q: PART C Ionic Bonding: Predict how the following pairs of elements will bond. 21. 22. 23. 24. 25. Ca…

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Q: 4) Consider the pka for the a) What is the pka of ammonia/ammonium ammonia/ammonium based off your…

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Q: Ni(s) Ni2+ (aq) Anode + →→ Salt Bridge Cathode Cd(s) Cd²+ (aq)

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Q: The reduction of peroxydisulfate ion (S₂02) by iodide ions to form sulfate ions and aqueous iodine…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.