1. Silver has two naturally occurring isotopes with the following isotopic masses: 107 107 47 Ar 106.90509 47 108.9047 The average atomic mass of silver is 107.8682 amu. The fractional abundance of the lighter of the two isotopes is

Q: 3.33 Calculate the standard free energy change for the follow- ing reactions using the standard cell…

A:

Q: Calculate the mass change in grams bf the copper and nickel electrodes. mass change of copper…

A:

Q: Aluminum metal reacts with oxygen gas.

A:

Q: EXERCISE 1: Preparation of a standard solution of copper(II) sulfate pentahydrate 1. Weigh out…

A: GivenMass of CuSO4.5H2O = 9.99 gMolar mass of CuSO4.5H2O = 249.69 g/molMoles of CuSO4.5H2O  = Mass…

Q: e pressure

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

Q: Consider a cell constructed from standard Q2*/Q and D*/D electrodes. Q and D are symbols of…

A: Given Q2+ + 2e- → Q         E° = -0.468 V D+ + e- → D              E° = + 0.772 V

Q: a b C 70 cm² to m²? 63 cm² to m²? 27 mm² to cm²?

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Ka= 1.76 x 10-5 for HC2H3O2 What is the pH of this solution? Table 1 Solution Buffer solution acetic…

A:

Q: (e). Brooke titrated 0.1381 grams of methylamine with 22.50 mL of 0.198 M HCl to reach the…

A: Answer:- This question is answered by using the simple concept of stoichiometry which give the…

Q: Example 14: A sample of a compound of N and O contains 1.52 g of N and 3.47g of O. The molar mass of…

A:

Q: Suppose a 500. mL flask is filled with 2.0 mol of NO3 and 1.7 mol of NO2. The following reaction…

A:

Q: A chemist fills a reaction vessel with 0.958 M lead (II) (Pb²") aqueous solution, 0.141 M bromide…

A:

Q: Calculate the cell emf for the following reaction at 25°C: Ni(s) + 2Cu²+ (0.010 M) → Ni²+(0.0010 M)…

A:

Q: NaHCO3 from label of Alka Seltzer tablet: 1916mg Data Sheet: Run #1 Run #2 Run #3 Run #4 Run #5 Run…

A: #Calculation for Run#1: The balanced equation for the formation of CO2(g) from NaHCO3(aq) and acetic…

Q: Suppose a 500. mL flask is filled with 1.5 mol of N₂ and 0.30 mol of O₂. The following reaction…

A:

Q: The base protonation constant K, of allantoin (C,H,N3O3NH,) is 9.12 × 10 °. Calculate the pH of a…

A:

Q: 1. At 400 K, the Kc is equal to 2.6 x 10-5 for the reaction given below. What is the Kp of the…

A: The relationship b/w Kp and Kc is  Kp = Kc × (RT)∧∆n Kc = 2.6 ×10-5 R = 0.0821 L* atm / mol *K T =…

Q: A. CALIBRATION OF THE CALORIMETER Mass of copper Mass of water Temperature of copper (boiling water,…

A:

Q: 3) An industrial chemist is studying small organic compounds for their potential use as an…

A: Given: mass of solute = 0.243 g volume of water = 25.0 mL Freezing point of solution = -0.201 oC…

Q: The chemical formula for potassium bromide is KBr. A chemist determined by measurements that 0.0250…

A:

Q: The number of milligrams equivalent of any substance can be calculated from

A: In this question, we will see how to calculate the number of milligrams equivalent.  You can see how…

Q: Can you show how number 1 is done

A: The following processes occur during the above said conversion.Ice(-20 C)→ice(0 C)→water(0…

Q: A chemical reaction has AH° = 42.8 kJ and AS° = 92.5 J/K, at 25°C. Calculate the temperature at…

A: Formula: ∆G = ∆H - T∆S

Q: A chemist makes 270. mL of barium chloride (BaCl,) working solution by adding distilled water to…

A: Volume of Barium Chloride = 270.0mL Volume of distilled water = 210.0mL

Q: The formation of ammonia is one of the most important processes in the chemical industry: N2(g) +…

A: The solution is given below -

Q: 6. Photosynthesis can be represented by the equation 6CO:(g) + 6H,O(1I) = CH1,O6(s) + 60;(g) a)…

A: Entropy is the degree to measure the randomness of an element. The change in entropy of a reaction…

Q: Pls help me answer number 3 with complete solution

A:

Q: 13.40 Calculate the equilibrium constant for the following reac- tions using data from the standard…

A:

Q: Using the table for lonic Radii for Several Cations and Anions c. Cell edge length of ferrous oxide…

A: Given, Ferrous oxide has rock salt structure . density of ferrous oxide =5.75gcm3

Q: 4. Although the depletion of stratospheric ozone threatens life on Earth today, its accumulation was…

A:

Q: 2. A sample of vapor weighing 0.180 grams occupies a volume of 53.1 cc at 27°C and 760 mmHg…

A:

Q: Percent Water in a Hydrate Data Table #28 White, grainy, crystal, like sugar/ Salt Unknown Number…

A:

Q: Chemistry Question

A: A) The balanced reaction given is Given : Mass of Pb(NO3)2 reacting = 18 g Molar mass of Pb(NO3)2 =…

Q: The percent yield for the reaction is 87.2%. How many grams of the precipitate are formed?…

A:

Q: Question 71 of 96 What is the mass in grams of KBr in 0.400 L of a 0.350 M solution? STARTING AMOUNT…

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

Q: Consider the following reaction at 200 °C: 2C0(g) + 02(g) = 2C02(g) An equilibrium mixture contains…

A: The equilibrium reaction taking place is given as, => 2 CO (g) + O2 (g) -------> 2 CO2 (g)…

Q: How many grams of oxygen gas are produced when 2.43 x 10 g of KCIO, are completely reacted according…

A: Given: Mass of KClO3 reacted = 2.43 x 10-4 g The balanced chemical equation of the reaction is given…

Q: 2) Calculate the concentrations of the FeSCN²" solutions you prepared in Part 1 and, using these…

A: #2: Calculation for [FeSCN2+(aq)] of the solutions in part-1: In part-1, we have taken a very small…

Q: Please show how you solved each. I need to see and understand the calculations. I am so frustrated.

A: Trail 1 : Since mass of Epsom salt used = Mass of beaker with epsom salt - Mass of beaker => Mass…

Q: Kindly complete the following (showing all your work) and please keep your final answer to 2 decimal…

A: The enthalpy change of a reaction ∆Hrxn is given by: ∆Hrxn=∑∆Hof(products)-∑∆Hof(reactants)

Q: 1. A perfect gas undergoes isothermal compression, which reduces its volume by 2.20 dm³. The final…

A:

Q: Need answer for both parts

A: Relationship among the given compounds:

Q: Determine the type of alcohol represented by each structure. Choose... OH H2 .C. .C. H`CH3 H2 H3C…

A: as per Q&A guidelines of portal I select first image question because it comes under multiple…

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free…

A: The given balanced chemical reaction is, 2Als+Fe2O3s→Al2O3s+2Fes The oxidation half reaction is…

Q: 3) The atomic heat capacity of solid Mo is given by the equation: cal 0.503x105 = 5.69 + 1.88x10-3T…

A:

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.