Which element has the following configuration? 1s 2s? 2p° 3s? 3p® 3d? 4s? 1s 2s 2p° 3s? 3p° 3d10 4s² 4p° 4d' 5s?

Q: the laboratory a student finds that it takes 29.3 Joules to increase the temperature of 13.1 grams o...

A: Given -> ∆H= 29.3 joule Weight (m) = 13.1 gm T1=20.0°C  T2= 37.9°C  

Q: Consider the combustion of hexyne, C6H10, what is the coefficient in front of O2 when equation is pr...

A: A combustion reaction is always exothermic in nature. Exothermic reaction are those reaction in whic...

Q: Q la- Calculate the radius of the first orbital of the hydrogen atom according to the Bohr model? Wh...

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Q: Question 7 How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; S...

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of ...

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more produ...

Q: Question #2 - Describe a physical change which has an impact on your daily life. How can you be sure...

A: Answer - According to the question - Physical change is an important concept in chemistry; it descri...

Q: 33

A: To calculate pH for the given buffer solution.,

Q: Find the mass of sufur in the original mixture

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Q: Consider the titration of 60.00 mL 0.120 M NaHCO3 with 0.250 M KOH. a. Determine the pH at the equi...

A: NaHCO3(aq) is a weak acid and KOH is a strong base.  The balanced equation for the neutralization re...

Q: . For a 0.326 m aqueous solution of sucrose, C12H22011, What is the boiling point? kb = 0.512°C/m

A: ∆Tb = Kb m  Where ∆Tb = Boiling point elevation                       = To - Ts  Where T0 = Boiling ...

Q: 4. Why do they put magnesium rods in a steel hot water heater? (Hint: Think about galyanized steel)

A: Q4) Why do they put magnesium rods in a steel hot water heater? (Hint: Think about galvanized steel....

Q: EQUATION WRITING: Balance the following redox reactions. Use change in oxidation state method (oxida...

A: Oxidation means loss of electrons and reduction means gain of electrons.

Q: AH° = ? %3D

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Q: 2HBR + Mg(NO3)2 2HNO3 + MgBr2 If 55.0 g of HBr are mixed with 55.0 g of Mg(NO3)2, determine: (a) Wha...

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Q: What are the units of a? What are the units of b? For water the numerical value of a is 5.464 and th...

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Q: Compare and contrast organic chemistry with inorganic chemistry. Give a definition of the two types ...

A: Inorganic chemistry - - > Inorganic chemistry deals with the compounds which are inorganic compou...

Q: Rank the elements or compounds in the table below in decreasing order of their boiling points. That ...

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Q: How many moles of KClO₃solid must be reacted according tothe following balanced chemical reaction to...

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Q: Given the redox reaction below, balance in acidic medium. HBRO3(aq) Bi) HBrOz(aq) BizO3

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Q: 2.Would 20 mL of your 1:1 (acetic acid: sodium acetate) solution prepared in Part B be able to buffe...

A: Buffer capacity is the ability of buffer to resist the change in pH.

Q: Determine: a) What is the Global reaction b) What is the theoretical power of the cell c) What is th...

A:  (a)               C + 2O2-     →Anode         CO2 + 4e-4e- + O2     →cathode        2O2-           ...

Q: Calculate the freezing point of a solution containing 0.745 kg of CHCI3 and 58.0 g of eucalyptol (C1...

A: Mass of eucalyptol = 58.0 g  Mass of CHCl3 = 0.745 kg   

Q: Suppose 0.7542g of KHP is titrated with 22.74 mL of NaOH. What is the concentration of the NaOH solu...

A: Given data of the following, Mass of KHP = 0.7542 g, molar mass of KHP= 204.22 g mol-1 Volume of NaO...

Q: 23. The integral heats of solution at 18°C for the various solid modifications of calcium chloride i...

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Q: Concentration Initial Final Volume Mass percent of acetic acid of Heinz volume Volume(mL) (mL) of in...

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Q: Calculate the pH of a solution prepared by mixing 0.0870 mol of chloroacetic acid plus 0.0250 mol of...

A: pH =pKa + log[Conjugate Base][acid] pH =pKa + log[Sodium Chloroacetate][Chloro acetic acid] pH =2.86...

Q: H,SO, (A) но 180° K,Cr,0, H,SO, (B) он (F) (E) (D) (C) NaH (G) + ethyl chloride -OH (H) (1) + ) *hro...

A: here we are required to predict the product of the reaction when different reagents are used

Q: 3Cl2 + 2N2N2 → 2N2Cl3N2Cl3 Molar masses: chlorine gas = 70.9 g/mol nitrogen gas = 28.02 g/mol dini...

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Q: The empirical formula a compound is C 2H 40 and its molecular weight was determined to be approximat...

A: Empirical formula is the simplest ratio of atoms present in molecule. Therefore ratio of elements C:...

Q: Free Energy (kcal/mol) 15 25 20 B 10 C Reaction progress - Use the reaction energy diagram above to ...

A: The energy diagram given is,

Q: A 12.3 g sample of an alloy of Mg (35%) and Al (65%) produces H2 when added 25 ml of 1.21 M HCI. Cal...

A: Given the mass of the alloy = 12.3 g The composition of the alloy is: 35 % Mg and 65% Al

Q: Using the following data, calculate the lattice energy of calcium chloride: Ca2+(g) + 2Cl– (g) → Ca...

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Q: the pH of a solution prepared by dissolving 2.35 g of sodium acetate, CH3C ONa, in 60.5 mL o CH3COOH...

A: Molar mass of Salt = 82 g/mol Moles of Sodium Acetate(Salt) = .= mass/ Molar mass = 2.35/82 = 0.0287...

Q: kJ and its normal boiling point is 99. °C. Calculate the vapor pressure of X at mol The enthalpy of ...

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Q: 1. What is the hybridization for each of the indicated atoms in the following compound?  2. Which i...

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Q: A 12.3 g sample of an alloy of Mg (35%) and Al (65%) produces H2 when added 25 ml of 1.21 M HCI. Cal...

A:

Q: nder certain conditions the rate of this reaction is zero order in ammonia with a rate constant of 0...

A: Given reaction is followed zero ordered reaction

Q: How many grams of water must be used to dissolve 240g of glucose (C6H12O6) to prepare a 1.67 x 10^-3...

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Q: Consider the titration of 50.0 mL 0.1250 M KOH with 0.07500 HClO4 M. a. Write the balanced reaction...

A: Volume of KOH = 50.0 mL Molarity of KOH = 0.1250 M  Molarity of HClO4  =0.07500 M

Q: Consider the titration of 60.00 mL 0.120 M NaHCO3 with 0.250 M KOH. a. Write the balanced reaction w...

A: Given,  [NaHCO3] of or [HCO3-] = 0.120 M  Volume of NaHCO3 or HCO3- in mL = 60.00 mL  [KOH] = [OH-] ...

Q: Draw the skeletal (line-bond) structure of 1-methylcyclopentan-1-ol.

A: line bond structure or skeleton structure is the structure of a organic compound represented via lin...

Q: Place 2.4 grams of sulfanilic monohydrate in a 125 ml Erlenmayer flask and dissolve it in 25 ml of 2...

A: Experiment: Place 2.4 grams of sulfanilic monohydrate in a 125 ml Erlenmayer flask and dissolve it i...

Q: 4. Why do they put magnesium rods in a steel hot water heater? (Hint: Think about galvanized steel.)

A: Please find your solution below : Corrosion is a phenomenon in which a material gets deteriorated be...

Q: Write the chemical reactions whose equilibrium constants are Kp and Ką for imidazole (C,H,N,) and im...

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Q: Dissociation of the following equation in water (equation should be balanced and with state symbols)...

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Q: able. 3 Molar mass of unknown acid Mass(g) Initial Final Volume Molar volume Volume(mL) | (mL) of ma...

A: The data given is, Assuming that the formula for the monoprotic acid is HA and for the diprotic aci...

Q: The boiling point of 500.0L of water was determined to be 100.0°C. Ana has decided to increase the b...

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Q: ОН to CF3CO,H

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Q: Determine the van't hoff factor of the following solute given the supplementary information provided...

A: To identify: The van't Hoff factor for the solutes given.  

Q: Chloroform (1)/methyl ethyl ketone (2) form a solution in vapor liquid equilibrium at 330 K 1) The ...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...