Express the quantity 102,455 m in each unit. fm Express your answer in femtometers to six significant figures.

Q: Suppose a 250. ml flask is filled with 1.1 mol of 1₂ and 1.0 mol of HI. The following reaction…

A: Molarity can be calculated by dividing number of moles by volume.  Here, volume of the flask = 250…

Q: Erwin Schrödinger Orbitals which result from solving the Schrödinger wave equation can be…

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Q: proposed Lewis structure N-0- : 0: 0=0= CI: If two or more : 0: [H=C=C:]¯ atome WIS structures are…

A: • Lewis structure are those diagrams which represents the available valance electrons of atom in…

Q: H3C III.... CI CH3 H₂C compound E میر میں compound G CI CH3 compound F CI CI compound H Compounds E…

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Q: Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond, D most stable conformation.…

A: H↔H ecllipsed : 4kJmol CH3↔H ecllipsed : 6kJmol CH3↔CH3 ecllipsed :11kJmol CH3↔CH3  gauche staggered…

Q: TriCor (fenofibrate) is used to lower cholesterol levels in patients at high risk of developing…

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Q: Be sure to answer all parts. Calculate the molalities of the following aqueous solutions: (a) 1.19 M…

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Q: ron(II) sulfide reacts with hydrochloric acid according to the reaction…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: the Main equilibrium which is established when sodium acetate is mixed with water is : a) Na+(aq)…

A: A question based on equilibrium concept. 5 equilibrium equations for the sodium acetate with water…

Q: Macmillan Learning Consider the skeletal structure in line-angle (line-bond) mode of…

A: As carbon atoms are always involved in four bonds therefore  The number of hydrogen atoms attached…

Q: r the following reaction, 37.3 grams of sulfuric acid are allowed to react with 42.5 grams of zinc…

A: Zn(OH)2              +              H2SO4→           ZnSO4            +          H2OZinc hydroxide…

Q: 67. Which isoelectronic ion is the smallest in size? (A) A1³+ (B) Na+ (C) F- (D) 68. Which of these…

A: Isoelectronic species are those which contain same number of electrons. Cations are formed by the…

Q: Explain the concept of aromaticity in organic chemistry and provide a theoretical example of a…

A: Aromaticity is a fundamental concept in organic chemistry that explores the unique stability and…

Q: What group of substance give positive result with molisch test?  (Glucose, Fructose, Galactose,…

A: The Molisch test is a chemical test used to detect the presence of carbohydrates, specifically…

Q: A cup of hot water is left to cool in a room at 20 °C. If the cup contains 400 g of water initially…

A: Given: mass of water = 400 g Specific heat of water c = 4.182 J K-1 g-1 Temperature change ΔT = (20…

Q: What other substrates can be used to produce vinegar?

A: Vinegar is acetic acid solution, chemical formula of acetic acid is CH3COOH

Q: Question 7 of 7 > Ⓒ Macmillan Learning compound C H3C CI CH3 CH3 H3C compound E compound G CH3…

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

Q: Organic Chemistry HW: 2,6-dimethyloct-2-ene cannot be handwritten, explanation of  print the…

A: 2,6-dimethyloct-2-ene We need to write the structural formula of above molecule (expanded or…

Q: yclooctatetraene, C8H8, is an unusual hydrocarbon in that it reacts with exactly 2 equivalents of…

A: Cyclooctatetraene is a non-aromatic species but on reaction with two equivalent of potassium it form…

Q: How many litres of C6H14(l)C6H14(l), measured at 20 ∘C, must be burned to provide enough heat to…

A: Heat of Combustion is the measure of amount of heat release when 1mole of substance is burned.…

Q: 7. What variables can cause the pH range of an indicator to shift?

A: The pH range of an indicator is determined by its chemical structure and properties. However,…

Q: I need help with two compounds that are some kind of isomers, the ones i picked are the optical…

A: tris-ethylenediaminecobalt(III) chlorideDeriving the structure:It has three ethylenediamine groups,…

Q: Question 9 of 10 > © Macmillan Learning Rank the organic molecules in order of increasing acidity.…

A: pKa value: pKa value negative logarithm of the acid dissociation constant (Ka). pKa = -logKa Low pKa…

Q: H₂C CH3 H3C Br Br: Br₂ CH₂Cl₂ H3C Br Electrophilic addition of bromine, Br₂, to alkenes yields a…

A: It is based on the concept of reactivity of alkene.  Here we are required to show the flow of…

Q: Use the References to access important values if needed for this question. It is often necessary to…

A: Powers are added in multiplication 10n x 10m = 10(n+m)  Powers are substracted in division 10n/10m =…

Q: Use the molecular orbital diagram shown to determine which of the following is most stable.

A: Bond Order of a species is determined by the following formula :  BO = (No. of bonding electrons -…

Q: Which of the following best describes the equilibrium constant, K, for this reaction?

A: Equilibrium is a condition at which both forward and reverse reaction occur at same rate. The ratio…

Q: For the reaction Fe³+ (aq) + 6 H₂O(l) ≈ Fe(OH)3(s) + 3 H3O+ (aq): a)Write out the equilibrium…

A: Pure solid and pure liquids are not included in equilibrium constant expression.

Q: Answer the following questions about the Lewis structure for gallium (III) sulfate, Ga₂(SO4)3…

A: The Lewis structure of a molecule describes the distribution of electrons around each atoms. It…

Q: 1. What is the pH and pOH of a 0.0235 M HCI solution? 2. What is the pOH of a 6.50 x 10-3 M KOH…

A: The pH and pOH of the given solutions can be determined by considering the concentration of H+ and…

Q: Consider the generic Lewis dot symbol for an element. Which element could this symbol represent? N C…

A: In the Lewis dot structure of element, the dots represent the valence electrons in the element.

Q: Click here for structures of open chain sugars. HO H- HO -H H-S-H HO For the sugar above: A) Select…

A: We have to identify the structure of the given open chain sugar molecule.

Q: 1. Calculate the energy (in kJ) required to heat 0.399 grams of water from 103.2 ℃ to 153.0 ℃. 2.…

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Q: A chemist designs a galvanic cell that uses these two half-reactions: standard reduction…

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

Q: Complete the following reaction by writing the name of the product. 8. Ni or Pl H₂ ?

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Q: Propose a mechanism for the following acid-catalysed hydrolysis of the epoxide and then assign R and…

A: A question based on reaction mechanism. An epoxide is given whose product on hydrolysis is to be…

Q: Macmillan Learning Label each carbon atom with the appropriate hybridization. CH3 -CH₂ CH3 CH₂…

A: • Alkane -C-C- in this case all bonds are single and the hybridization of the carbon is sp3. In sp3…

Q: ▼ Part A How many grams of are produced from 125 g of O₂ and excess CH₁? [Molar mass (g/mol): CH4 =…

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Q: 200 160 PE (kJ) 120 80 155 kJ 40 40 kJ 112 kJ 172 kJ Reaction Progress 102 kJ

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Q: Which of the following compounds would you expect to contain the most acidic hydrogen atom? A OD OA…

A: The H-atom attach to the alpha carbon of Carbonyl compounds is acidic in nature.

Q: Draw a diagram showing all possible hydrogen bonding interactions between molecules of H2O and…

A: A hydrogen bond is a kind of intermolecular force of attraction between the partial positive charge…

Q: A 13.5 g sample of potassium chlorate was decomposed according to the following unbalanced equation:…

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Q: 2.2 Draw and assign R/S configurations to all stereoisomers of tartaric acid and identify…

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Q: Zinc sulfide reacts with oxygen according to the reaction 2ZnS(s)+3O2(g)→2ZnO(s)+2SO2(g) A…

A: Zinc sulfide reacts with oxygen gas to form zinc oxide and sulphur dioxide 2ZnS + 3O2 → 2ZnO + 2SO2…

Q: What is the expected product of the following reaction? O O O OH doda OA OB OC D A H B 1) LIAIH, 2)…

A: 1. In this reaction, an aldehyde is reacting with LiAlH4, which is a strong reducing agent. 2. In…

Q: 1. Show mechanisms for the formation of imines as well as their hydrolysis. 1.A. pH 4.5 (HOTS) + H₂O…

A: Carbonyl compounds react with primary amine to form imine. Imine on acidic…

Q: Complete the following synthesis by selecting from the list of 14 reagents below. Each reagent (or…

A: Benzene can be converted into Nitro benzene by treatment with nitric acid and sulphuric…

Q: In the RT-PCR test to diagnose for COVID, what functions as the specific "probe" that can identify…

A: Answer :-----    In the RT-PCR (Reverse Transcription Polymerase Chain Reaction) test used to…

Q: Which of the following reactions are consistent with the reaction profile shown below? Potential…

A: The diagram that shows the potential energy changes during the chemical reaction is considered as…

Q: Select the choice that best describes the relationship of the pair of compounds. The compounds are:…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.