What element is designated by the orbital diagram below? (Note that core electrons are not shown.)

Q: A student was able to detect a mas O2. Oxygen was present in excess yield of the reaction? O 50.0% O…

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Q: A sample of Argon gas occupies a volume of 9.61 L at 46.0 degrees celcius and 0.960 atm. If it is…

A: We need to calculate the temperature after the volume and pressure of the gas is increased

Q: Potassium-Argon dating is a common method of determining the age of rocks based on the time they…

A: Solution:  In this problem we have to calculate the time peroid in years

Q: The rate law for the following reaction has been experimentally determined to be third order: 2NO(g)…

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Q: Draw structural formulas for organic products A and B in the window below. CH3 CH3CH₂CHCHCH3 Br Li…

A: Given reactions are  a prepration scheme of gilmans reagent.

Q: 15. How many O atoms are in 2.00 g Al₂O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole 3.54 x10exp22 O…

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Q: NH3(aq) + H₂O(1) = NH(aq) + OH- (aq) The equilibrium hydroxide concentration in a 0.0220 M NH3…

A: Given [OH-(aq)] = 6.29*10-4 M,  initial concentration of NH3(aq) = 0.0220 M

Q: Determine the mass of solute (in g) contained in 250.0 mL of a 1.77 M solution of AlF3. g AlF3

A: Molarity is defined as the number of moles of solute present in one liter of solution.

Q: What is the pH of the solution at the equivalence point, when Julianna has added 20.00 mL of the…

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Q: Determine the volume (in mL) of a 1.97 M solution of ZnBr2 that contains 0.404 moles of ZnBr2. mL

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Q: 19. 1.18 g of Ar(g) occupies 2.00 L. container at the temperature of 25 °C. Calculate the pressure…

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Q: what is the relationship between absorbance and transmittance?

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Q: A 0.600 g sample of potassium carbonate, K₂CO3 (138.2055 g/mol) is dissolved in 20.00 mL of 0.1700 M…

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Q: Write the complete electron configuration for the common monatomic ion formed by the element…

A: Given that -  Monoatomic atom = Bromine , Br    It is the third element of halogen group. It has…

Q: Can you show both resonance structures?

A: -> N-bromosuccinimide (NBS) is used for allylic bromination and proceeds through formation of…

Q: If the  ?a  of a monoprotic weak acid is  2.9×10−6,  what is the  pH  of a  0.29 M  solution of this…

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Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free…

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Q: Compute for the concentration of the EDTA solution buffered to a pH of 11.00 (a = 0.85) if the molar…

A: Solution: Given: y-4 = 0.85          [ y-4] = 0.0021 moles [EDTA] = ?

Q: C. A 0.0543 M solution of a weak acid HA has a pH of 4.87. Calculate K, and % ionization of a the…

A: There is more than one question, and all are different. As per answering guidelines I can answer…

Q: Aditi titrated 80.00 mL of 0.50 M ethylamine, CH3NH2, with 0.40 M HC CH3NH₂ Kb = 4.4 x 10-4 What is…

A: Kb = 4.4×10-4 pKb = 3.36 Molarity of base =0.50 M Volume of base = 80 mL M × V  Mmol of base =M × V…

Q: NH3 + H3O+ →>> NH; + H2O 25.0 mL of the 0.0220 M NH3 was titrated with 0.010 M HBr. It took 55.0 mL…

A: HBr is a monoprotic strong acid. NH3 is a monoacidic weak base.

Q: Compute for the molar concentration of EDTA standardized using 50.00 mL of the CaCO3 primary…

A: EDTA complexometric titration is based on the fact that many metallic ions form stable complexes…

Q: A solution is 1 M HCl, aqueous, (hydrochloric acid). a. What makes up the majority of the solution?…

A: Answer is given below

Q: b. an infinite square well V(r) = {0, tfr > a} if if Solve Schrodinger equation in spherical…

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Q: 5. What does the term 'acid strength' mean? (In your own words) 6. How does strength affect the pH…

A: Acid :  It is a chemical compound or ion which can give or is capable of donating protons. It is…

Q: Determine the molarity of ammonium ions in a solution that is 0.429 M (NH4)3PO4. M NH4+

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Q: 2. Referring to the colorimeter in this experiment, if a sample transmits sufficient light to cause…

A: Transmittance is defined as the ratio of intensity of light transmitted by sample to that of blank.…

Q: copper (II) oxide + sulfuric acid   ----------> Reaction Type: Observations: Balanced Equation:

A: Acid is a substance that can donate hydrogen ions in an aqueous solution.

Q: Give an example of an ethical dilemma that can occur in nanotechnology research. Discuss why it is…

A: Nanotechnology is the study of special properties of particles having size in the range 1 - 100…

Q: Before After

A: Single displacement reaction : The reaction in which an ion or element moves out of a compound that…

Q: A compound is found to contain 7.522% phosphorus and 92.47 % iodine  by mass. a. What is the…

A: From the mole ratio of the element we can determine the empirical formula . Using empirical formula…

Q: Which one occurs? State your observations. • A metallic deposit appears  • Bubbles appear  • A…

A: Approximately 2 mL of Solution of NaOH is added to a sample of Solution Ni (II) Nitrate with a…

Q: Calculate the concentration inside a membrane where the concentration outside is moles m3 C₁ =3 is…

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Q: Draw the mechanism for one example of the preparation of the following alcohol 1) MgBr OH 袋 2) H₂O 3…

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Q: . copper (II) nitrate + sodium hydroxide ----------> Reaction Type: Observations: Balanced…

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Q: McKenzie titrated 150.00 mL of 0.20 M trimethylamine with 0.50 M HCIO4. What is the pH of the…

A: Concept based on the calculation of pH of the base solution.

Q: 1. In the chart below, draw the expanded structural formula and the condensed structural formula for…

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Q: Use the References to access important values if needed for this question. When 15.0 mL of a…

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Q: The pressure on a sample of an ideal gas is increased from 715 mmHg to 3.55 atm at constant…

A: According to Boyle's law, the variation of pressure and volume of an ideal gas at constant…

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

A: A reaction in which the change in Gibbs free energy is negative or less than zero is a spontaneous…

Q: For a particular isomer of CH₁, the combustion reaction produces 5104.1 kJ of heat per mole of C,H₁,…

A: Given, C8H18(g) + 25/2 O2(g) → 8CO2(g) + 9H2O(g) ∆H°rxn = -5104.1 kJ/mol Standard enthalpy of…

Q: 10. Assuming that the dissociation products are of equal concentration, classify the pH of the…

A: pH : it can define have the negative logarithm of H+ ion concentration. When pH > 7 solution is…

Q: Can you also put whether is A, B, C

A: The diagram provided in the original question presents the various electronic transitions. The…

Q: 1. How many unpaired electrons are in the nitrogen atom? This atom is A. Paramagnetic B. Diamagnetic…

A: Paramagnetic substances are those which have unpaired electrons and diamagnetic substances are those…

Q: 5:17 Determine the boiling point of an aqueous solution composed of 111.0 g ethanol (CH3CH2OH)…

A: Given, mass of ethanol = 111.0 g mass of water = 400.0 g = 0.4 kg Boiling point of the solution…

Q: What is the normality of a 5.00 L solution that is labelled as 87.2  M Ba(OH)2   Express your…

A: 5.00 L solution is labelled as 87.2 M BaOH2We have to calculate the normality of the solution .

Q: 2. Look at your drawing of propane and replace one of the hydrogens (choose any one) and replace it…

A: Alkyl halides are also called haloalkanes and  derived from alkanes in which hydrogen is replaced by…

Q: Write the complete electron configuration for the iron(III) ion. Using NOBLE GAS notation write the…

A: Write electronic configuration of the given ions?

Q: Part B. Classify whether the following acids using the choices below. A - May only be classified as…

A: Acid and bases can be classified according to various theories which are: Arrhenius concept:…

Q: Arrange the following atoms in the order of increasing ionization energy: From lowest to highest…

A: For the ionization energy of elements, there is a trend which is a general prediction of ionization…