What is the percentage by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g of pure silver?

Q: 2. Write the Lewis diagram for the following ionic compounds formed between the elements given. a.…

A: Here we can draw the Lewis structure of the possible ionic compounds by observing the number of…

Q: QUESTION 5: NO2 SO3, H2SO4 Br2, FeBr3

A: ->HNO3/H2SO4 used for formation of nitrobenzene from Benzene. ->SO3/H2SO4 used for suphonation…

Q: Thiols or thiol (-SH) group is a better base than hydroxide (-OH) group in elimination reactions.

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Q: Calculate the number of grams of CaCO3 in 5ml of water that has been titrated with 1.98ml of 0.0100M…

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Q: Explain the sudden jump in ionization energy for the elements in period 3 and why that jump occurs…

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Q: eavation: 3.

A: 20.  In a balanced chemical equation, the number of atoms of elements present on both sides of the…

Q: 3) With regards to the provided equilibrium system, discuss the effect of each of the indicated…

A: According to Le-chatelier principle if equilibrium is disturbed then reaction proceed towards that…

Q: Suppose 60.0 mL of 0.100 M Pb(NO3)2 is added to 30.0 mL of 0.150 M KI. How many grams of Pbl2 will…

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Q: Part C Identity the oxidzing agent and the reducing agent for the following reaction Ca(s)+Pb…

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Q: Identify the concept that best fits each of the following reactions. + OH (ag) (aq) 1. 2H,O H,O* (6)…

A: Since you have posted question with multiple sub-parts, as per guidelines we will solve only the…

Q: Rainwater is found to be slightly acidic compared to pure water. It has a hydrogen concentration of…

A: Given: H+ of rainwater = 10-5.6

Q: At 510 nm, the iron orthophenanthroline complex has a molar absorptivity of 1.2 x 104. What is the…

A: The concentration of irom complex can be determined by using Beer-Lambar law which is expressed…

Q: Consider the following reactions. 2+ Mg (aq) + 2e 4 Mg(s) E° = -2.36 V 2+ Zn (aq) + 2e s Zn(s) E° =…

A: Standard reduction potential values of metal decreasing order is              Cu > Zn > Mg…

Q: Find the concentrations of species in a saturated CaSO4 at room temperature, considering activities.

A: CaSO4 is sparingly soluble. In a saturated solution, the aqueous ions are in equilibrium with the…

Q: A 0.1824-g sample that contains both NaCI (MW= 58.442) and NaBr (MW= 102.89) is titrated with 0.1052…

A: Given data,Mass of sample=0.1824 gMolecular weight of NaCl=58.442 g/molMolecular weight of…

Q: In which change does reduction occur? I. NO3 NO 2- II. co2→ C,04 2+ II. vo, - vo vo* 02 - H,02 IV.…

A: The common oxidation state of oxygen in most of its compound is -2. The common oxidation state of…

Q: In a similar experiment, the mass of 3 PB tablets was measured to be 3.1177 g. The tablets were…

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Q: Which of the following is not a method used to protect iron objects from corrosion? O Apply a…

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Q: 129 120- 110 100 90 80 70 60 50 40 33 4000 2500 cm-1 2000 650 3500 3000 1500 1000 %T

A: There are several functional groups present in the given molecule namely hydroxyl, methoxy and…

Q: What happened? Conc. dillute Initial Final What conditionms exist when the equilibrium point is…

A: At equilibrium state, concentration of both beaker will be equal and no further change will be…

Q: The following reactions are spontaneous as written. Mg(s) + Fe2+ →Mg2+ + Fe(s) Pb(s) + Cu2+ → Pb2+ +…

A: Given,

Q: The accuracy of a spectrophotometer can be evaluated by preparing a solution of 60.06-ppm K2Cr2O7 in…

A: Concentration of K2Cr2O7 is 60.06 ppm in 0.0050 M H2SO4 Wavelength = 350 nm Path length of the cell…

Q: Consider the complete combustion of butane, C4H10, for use in hand held lighters. Write the complete…

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Q: if ) Hतर TS ववेवेटव कठ 1. 00 M नhe घृपांकिरतपका ललां् fdgo , जा which disrecton witt the equitti 2…

A: We can solve this question by using the concept of Le Chatelier principle dealing with the…

Q: What is the numerical value of Keq for the following reaction: 3+ 2+ 3+ TI" + 2Fe“ s TI' + 2Fe…

A: Given,

Q: Electrolysis plays an important role in the manufacture or purification of all of the following…

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Q: Consider the following galvanic cell: Agls) | Ag"(3.0 x 104 M) || Fe3"(1.1 × 10³ M), Fe²"(0.040 M) |…

A: Here we are required to find the cell potential of the given galvanic cell

Q: Suppose 60.0 mL of 0.100 M Pb(NO3)2 is added to 30.0 mL of 0.150M KI. How many grams of Pbl2 will be…

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

Q: In an equimolar mixture of carbonate and chloride, Ag2CO3(e) (Ksp = 8.46 x 10-12) will precipitate…

A: Given: Concentration of carbonate ion i.e. CO32- ion and the chloride ion i.e. Cl- ion is the same…

Q: 6. Draw the mechanism for the acid catalyzed dehydration of cis and trans 2-methyl- cyclohexanol…

A: Here it is acid catalysed dehydration.  The hydroxy group is protonated and then hydrogen reverts…

Q: The oxymercuration/demercuration of the compound below will form what product? O a.…

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Q: 4) What is the formal concentration of NaCl (FW 58.44) when 32.0 g are dissolved in water and…

A: Formal concentration = moles of NaCl ÷ volume of solution in L

Q: In a certain zinc-copper cell, Zn(s) + Cu2+(aq) –→ Zn²+(aq) + Cu(s) the ion concentrations are…

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Q: Calculate the mL of 0.52 M NaOH required to neutralize 32.1 mL of 0.52 M H2SO4, using normalities.

A: Given: Concentration of H2SO4 = 0.52 M Volume of H2SO4 solution = 32.1 mL = 0.0321 L…

Q: At 10.4 °C solutions of tetrahydrofuran (THF) and diethyl ether are described as being ideal over…

A: To predict whether the given solution of tetrahydrofuran and diethyl ether is ideal or not.

Q: Electrolysis plays an important role in the manufacture or purification of all of the following…

A: There are different type of compounds, which are synthesized by different methods -  (1) Sodium, Na…

Q: Draw 3-ethylhexanoic acid. Draw the structure in line-bond form. Select Draw Rings More Erase

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Q: A. CH4 B. C3H6 C. C6H6 D. C8H8 E. None of the above 2. Which of the following does NOT a have a C3…

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Q: What is the potential after the addition of 25.00 mL of 0.05000 M Sn^ in 50.00 mL of 0.1000 M Fe".…

A: Given: Concentration of Sn2+ = 0.0500 M Volume of Sn2+ solution = 25.00 mL  Concentration of Fe3+ =…

Q: A laboratory has 12.69 mg Cu2+ available for investigation. If the molar solubility of Cu(OH)2 is…

A: Given: Mass of Cu2+= 12.69 mg = 0.01269 g                                         (Since 1 g = 1000…

Q: Here is the end product.  Don't understand based on that why what I am doing is wrong.

A: Provide the mechanism for the step-3.

Q: The transmittance of a solution is found to be 85.0% when measured in a cell whose path length is…

A: Given-> T% = 85.0 %.      When l=1.00 cm T% = ?                  When l= 10.00 cm

Q: 13. The rate of the reaction NO2(8) + CO(g) NO(8) + CO2(g) depends only on the concentration of NO2…

A: we need to find the value of k according to the given data

Q: Consider the following galvanic cell: Ag(s) | Ag*(3.0 × 10“M) || Fe³*(1.1 × 10³ M), Fe²"(0.040 M) |…

A: Given,

Q: Mn²+ + 2e - Mn e° = -1.18 V Fe2+ + 2e¯ - Fe e° = -0.44 V a. Determine the overall cell reaction and…

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Q: If you wanted to create a buffer solution based on H2S/HS- with a pH 7.7, what mass of Nas would you…

A: Given: Volume of solution = 300 mL = 0.3 dm3                                (Since 1 dm3 = 1000 mL)…

Q: Molten RbCl can be electrolyzed to form metallic Rb. For what duration should an electrolysis be…

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Q: The standard cell potential (E°cei) of the reaction below is +0.126 V. The value of 4G° for the…

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Q: If a 2D-NMR experiment required 3hrs with the 0.9mM sample, how much time would be needed to obtain…

A: To find the time needed for 0.3 mM sample.

Q: PAC name to each of the following ethers

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.