When creating an electrochemical cell, why is it important to prevent the reactants from any direct contact?

Q: A mixture of gases contains 0.31 mol CH4, 0.25 mol C₂H6, and 0.29 mol C3H8. The total pressure is…

A: Mole fraction = Individual mole ÷ Total moles

Q: How many Ne atoms are contained in 0.5 moles of neon (Ne) atoms?

A: Given that, moles of Ne= 0.5 moles  No. of Ne atoms = ?

Q: A solution has a [H] = 7.0 x 10 to the power -11. What is its pH? Select one: O a. 11 O b.-10.15 O…

A: A solution has a H+ = 7.0 × 10 to the power - 11 .We have to calculate it's pH .

Q: If an aqueous solution is 2.93% (w/v) in nickel(II) bromide, NiBr2, what is the osmolarity of the…

A: Dear student ,   since you have posted multiple questions we are allowed to solve only first…

Q: What type of class of molecule is formed in the reaction illustrated here?

A:

Q: The following diagrams show the chemical reaction with time: A⇌BA⇌B If AA is blue and BB is…

A: The given chemical reaction with time: A⇌BA⇌B If A is blue and B is orange.

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

A:

Q: t involves tive study ions show eaction cor

A: The compound mentioned will be a grignard reagent. To synthesize a grignard reagent we have to be…

Q: Consider this reaction: 2SO₂(g) → 2SO₂(g) + O₂(g) At a certain temperature it obeys this rate law. =…

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Q: Balance each of the following: (please add 1 where needed - even though we usually do not) 1) 1…

A: 1.20 g of solid product is obtained from 3.23 g of sodium bicarbonate.We have to identify the…

Q: which if the following compounds is an electrophile? H20 (PO4)3- NH3 BF3

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Q: Problem 2. What are products formed from the below reaction? Draw the stereoisomers and name them.…

A: By adding a proton of a strong acid to  a double bond a carbonium ion is formed. The carbonium ion…

Q: A 6.60-g sample of Fe3O4 reacts with O₂ to produce Fe₂O3: 4Fe3O4(s) + O2(g) → 6Fe2O3(s) Determine…

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Q: The structures of five of the compounds of glycolysis are given. Without using a reference, arrange…

A: The above organic transformation  can be carried out as follows

Q: Acetylene reacts with sodium amide in the presence of propyl halide

A:

Q: Identify the correct electron-dot structure for XeFï. :F: "Xe" :: :n: :: :F: 시 "Xe" :F: 처 "Xe' :F:…

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Q: CI I HICIH I HICIH I HICIH HICIH I H b) I C-H HICIH HICIH 1-6-5 HICIH HICIH H HIC-C-H c) 91110 91110

A:

Q: 1. 8 mol of and 5 mol of were in a 4L When been established with the product, ammonia gas, the…

A: First calculate Concentration = moles ÷ volume . Now write balanced reaction.

Q: Please provide the detailed process and the answers. Thanks Provide a synthesis of the…

A: Bulky base like KOtBu abstracts proton from the less hindered site. Alkyne on treatment with excess…

Q: 4 55 56 57 Cs Ba La 112.9055 137.34 138.9055 88 89 Fr Ra Ac (223) 226.02.54 Select one: O a. Cs > K>…

A: We know that the atomic size increases in a group when we move from top to bottom. Thus the energy…

Q: You are given 2 test tubes. One of it consists of glucose and the other maltose. Which of the tests…

A: Glucose is a monosaccharide which is an aldose sugar. Maltose is a disaccharide that is made of two…

Q: How to measure the emission spectrum of Hydrogen, Neon and mercury vapors?

A: Emission spectrum of hydrogen: If we take hydrogen gas in a glass tube and pass electric current,…

Q: Fill in the blank below: If Keq is less than one, then _______ formation is favoured

A: Here we required  to complete the statement.

Q: Identify whether each substance is a reactant or product of the citric acid cycle. Reactant Answer…

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Q: Hemoglobin, Hb, has four Fe atoms per α molecule that, on average, bind about three O2 molecules.…

A: The equilibrium reaction for the oxygenation of hemoglobin is: Hb(aq) + 3O2(g) ⇌ Hb(O2)3(aq)

Q: ter bath properly carried

A: The laboratory equipment which is used to incubate samples for some period of time is water bath. It…

Q: Students are required to keep a neat and accurate record of their laboratory observations. Upon the…

A: In the given problem we have to speculate the the reason behind blackening of the yellow precipitate…

Q: For liquids, which of the factors affect vapor pressure? surface area volume temperature humidity…

A: The liquid molecules tend to convert into the vapour phase. In a closed container, the pressure of…

Q: How much heat is required to raise the temperature of a 1.15 kg piece of copper metal from 25.0 °C…

A: Given :-  Mass of Copper metal = m = 1.15 kg = 1150 g  Initial temperature of Copper metal = Ti =…

Q: If you start with 20 mM acetic acid, 50 mM acetate (pKa = 4.76) solution, how much of a 0.15 M…

A:

Q: If a solution containing 109.90 g of mercury(II) nitrate is allowed to react completely with a…

A:

Q: 2. Using structural diagrams to explain the synthesis of butyl ethanoate from an alkane and an…

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Q: In determining the normality of an acid, the equivalent number depends on Select one: O The number…

A: We have to choose the correct option.

Q: 8. K/U Write the acid-dissociation constant expressions for each of the following weak acids: a.…

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Q: 5. Write at least 4 different oxidation reactions for any hexose.

A: Hexose : Monosaccharides with six carbon atoms are called hexose. The chemical formula of hexose is…

Q: uestion 67 Drag the appropriate components onto the blank expression to give the correct acid…

A:

Q: A quantity of 4.275 g of an organic compound with a molecular formula C₁2H₂2 was burned in a…

A: we have to calculate the molar heat of combustion

Q: 1. Analyze the plastic Polyethylene terephthalate: a)What are the advantages (think properties)…

A: Polyethylene terephthalate stands for PET which is a type of plastic commonly used as a single use…

Q: Its concentration is 0.1 molar and has a function of BX. solution is HX acidic, equal to 5.7. If you…

A:

Q: 5. Name the following compounds H₂N می CH3 CH3 CH3 111. CH3 ojn CH3 iv.

A: The naming of an organic compound can be done with help of rules of international union of pure and…

Q: Without drawing the Lewis structures, predict which of the species below will have an expanded…

A:

Q: of the elements indicated on the periodic table shown above, which forms the weakest binary acid, H…

A: A question based on periodic trends that is to be accomplished.

Q: To draw the deformation curve resulting from 10 mL of 0.1 normal sodium hydroxide with 0.1 normal…

A:

Q: Fill in the Blanks H OH Type your answers in all of the blanks and submit X, X' Ω· For the following…

A: Here we are required to find the isoelectric point of the peptide

Q: How many faradays of charge are required to electroplate 127 g of copper from a 2 M cuprous chloride…

A: Given in following question 127g of Copper Cu from a 2M coprous chloride solution calculate how many…

Q: The benzene ring possesses high stability True Error

A:

Q: Draw the expected major product and the complete reaction mechanism for the following reaction. i.…

A: Ketones are the organic compounds that contain carbonyl group in a compound.

Q: 4000 88898 IR Spectrum 100 of base peak 3000 40 80 13C NMR Spectrum (500 MHz. CDC, solution) 100…

A: DBE is double Bond Equivalent.  It gives us a rough idea about how many double bond or triple bond…

Q: What is the expected bond angle around the indicated carbon atom in cyclohexene?

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: Its concentration is 0.07 molarity (K2Cr207) What is the number of milligrams equivalent of 43.50…

A: