Determine the mass in grams of 5.20 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01 g.)

Q: If you dissolve 450mg glucose (formula weight: 180.16 g/mole) in 49.5mL of water (all answers must…

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Q: triplet H3C H3C H3C singlet =43 нн 0 н нн н triplet CH3 CH3 H doublet nonet (9 peaks) doublet

A: -> In 1HNMR number of signal is equal to total number of unsymmetrical(different surrounding)…

Q: Calculate the temperature when ΔS(universe) equals to 0 for the following reaction: 2H2(g) + O2(g) →…

A: Given,  ∆U = -564 kJ/mol I (work) = 7.5 kJ ∆S= 0  Reaction : 2H2(g) + O2(g) → 2H2O(l)

Q: Benzene has a boiling point of 80.1 °C, and a specific heat capacity of 1.8 J/g °C in the liquid…

A: we have to calculate the heat released when benzene is cooled from 114 degree C to 55.1 degree C

Q: STARTING AMOUNT On average, a drop of water has a volume of 62.1 microllers What is this volume in…

A: In this question, we have to convert the given volume of one drop of water from microliters to…

Q: A. Supply the necessary arrows in the following equations. DON'T FORGET: a. b. C. d. H- HICI H H…

A: Here we are required to show the movement of electron from one atom to another atom.

Q: What is the equivalent of 365.2 mi/hr2 to m/s2?

A: We have given 365.2 mi/hr2. We have to convert units from miles per square hour to metre per square…

Q: Me H t-Bu H H Me

A: 5 more Newman projections of the given conformer and their stability oder are given below -

Q: Good question. Poly(methyl methacrylate) (PMMA) is a polymer commonly known as acrylic glass and…

A: Given structure of methyl methacrylate.  Valency of carbon is 4 and oxygen is 2 so carbon can form…

Q: identifythe X as a nuclide in the following  238 U 92 --- 234 90Th + X   26 Mg + 1 1P--- 4 2 He +…

A: Here we are required to find the nuclide in the following reaction.

Q: At 1000 K, a sample of pure NO₂ gas decomposes: 2NO₂(g) 2NO(g) + O₂(g) The equilibrium constant Kp,…

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Q: Predict the molecule structure： C14H14O2 H-NMR for H-1: δ 7-8 , multiplicity, 2H; δ 5.4,doublet,1H;…

A: This problem related to NMR . So, first we have to find out index of hydrogen Deficiency,  from that…

Q: calculate and present at the correct significant digits: 76.32 - 34.9 537 +3.59 4.5 x 108 can…

A: Given expressions are  1) 76.32 - 34.9 2) 537 +3.59 3) 4.5 x 108 We need to calculate and express…

Q: 2. (From Atkins, Exercise E17E.1(b)) The proposed reaction mechanism for the renaturation of a…

A: To derive the rate law for the production of the stable double helix product (H) using the steady…

Q: To balance the chemical equation SiO2+HF→SiF4+H2OSiO2+HF→SiF4+H2O, you could introduce coefficients…

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Q: he results from the experiment are shown in

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Q: Consider the following: Cl₂ → CIO₂ The balanced half-reaction is A. Cl₂ + 3H₂O → CIO, +6H* +5e B.…

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Q: It took 4.15x 10^3 J energy to raise the temperature of a piece of copper metal from 31 degrees…

A: The energy required to raise the temperature of a metal ion by 1oC is called its specific heat (Cs).…

Q: Iron exists in nature as a mixture of predominantly three isotopes: 54 Fe (53.94 amu), 56 Fe (55.93…

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Q: How many grams of phosphorus are required to make 24.00 g of P406? % P in P406 is 56.34. A. B. C. D.…

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Q: A student completes their TLC experiment, but can not visualize any spots on their plate under a UV…

A: Given: A student completes their TLC experiment, but can not visualize any spots on their plate…

Q: (a) (b) (C) Br Br NaOH 0- H20 EtCH₂SH NaOH, H₂O CH3 HBr LOH LOH

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Q: The amino acid Asp is triprotic with pK₁ = 1.88, pK2 = 9.60, and pK3 = 3.65. What is the charge of…

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Q: A solution contains a mixture of pentane and hexane at room temperature. Its vapor pressure is…

A: Answer: This question is based on Raoult's law according to which vapor pressure of system…

Q: Why is sodium hydroxide used to test the solubility of phenol?

A: A question based on solutions that is to be accomplished.

Q: How many grams would 1 pt of HCl weigh with specific gravity of 1.16?  2. If 500 mL of ferric…

A: Hi there! as there are multiple sub-parts posted. we are solving first three subparts.  If you need…

Q: Due to time constraints, the preparation of 1-iodo-4-nitrobenzene was no longer included in today's…

A: A question based on IR spectroscopy of organic molecules that is to be accomplished.

Q: cess important values if needed for Under certain conditions, the substances nitrogen and oxygen…

A: Given values are,  Mass of Nitrogen= 29.5 g Mass if oxygen = 33.7 g Standard values: Molar Mass of…

Q: at is the purpose of the following in the acetylation reaction: Acetic anhydride, Calcium chloride,…

A: Hydrogen atom which belongs to the alcoholic group is replaced with help of acetyl group  which…

Q: 1. Calculate the total volume of 25 mM NaCitrate, and 25 mM NaPhosphate you will need for both day 1…

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Q: 7. [McQuarrie 4-7] Boron (Z= 5) has five ionization energies (all in al): 1.33, 4.04, 6.08, 41.5,…

A: a) The  atomic number of boron = 5. That means there are total of 5 electrons in boron atom. The…

Q: Convert 10000 milligrams into pounds; Convert 1000 inches into meters; Convert 7.5 gallons into…

A: Conversion of units is the conversion between different units of measurement for the same quantity.

Q: ATP is -30.5 kJ/mole. The actual concentrations of ATP, ADP and Pi in (log human erythrocytes are…

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Q: A platinum (Pt, Z = 78) wedding band has a mass of (2.493*10^ ^ 1)g . If this ring is pure platinum…

A: Given, Mass of platinum = 2.493 × 101 g = 24.93 g Number of atoms of platinum present in the ring =…

Q: Phosphoric acid is tribasic, with pKas of 2.14, 6.86, and 12.4.  The ionic form that predominates at…

A: Phosphoric acid is a tribasic acid and it dissociates in three steps.

Q: Which of the following compounds is not aromatic? S OI O 11 O III O IV || III A/V

A: Aromatic compounds have (4n+2) electronic system where n = any integer value. Anti Aromatic…

Q: A cube of solid benzene (C6H6; M = 78.11 g/mol) at its melting point and weighing 8.90 g is placed…

A: Given data is Molar mass of  benzene 78.11 g/mol Mass of benzene placed in water =8.90 g…

Q: 50 mL of a 1.067 M solution of HCI was diluted to 250 mL. The diluted HCI solution was then titrated…

A: dilution law, V1 * M1 (before dilution) = V2 * M2 (after dilution) and 1 mole acid is neutralized by…

Q: About You dor esc etches: the lines stand for chemical bonds between the atoms. Just ignore the…

A: A functional group is substituent or moiety in a molecule that causes the molecule's characteristic…

Q: A balance measures mass to the nearest 0.001 gram. If you determine the mass of an object that…

A: Significant figures are used to define the number which is presented in the form of digits.  We can…

Q: Draw the structures of Ferrocene, mono acetylated ferrocene, diacetylated ferrocene and order them…

A: In this question, we have to arrange the given compounds from most polar to least Polar and also…

Q: Review & Preview Drag and drop to label each phase change arrow: melting condensing subliming…

A: Please find your solution below : State of matter is a form in which a matter can exist. The three…

Q: Given: 1. Mn(ClO4)2 a.) to mass (g)  b.) to Molar Mass (g/mol) Guide: Mn=54.94, Cl=35.45, O=16.00…

A: molar mass = mass / mole and molar mass = ∑(mole of atom * atomic mass of atom)

Q: The iron, tin, and titanium in a sample were jointly precipitated as hydroxides, which were washed…

A: A question based on mole concept that is to be accomplished.

Q: Electrons can be assigned to a specific: subcrust subshell suborbital subwave

A: Here we have  to predict the region around nucleus where elctron  is present according  quantum…

Q: Balance each redox reaction in basic solution using the half reaction method. Cr₂O72- + Hg →→ Hg2+ +…

A: A question based on redox reaction that is to be accomplished.

Q: Given the mass of 1.500 Mg(Mega gram) and a volume of 2.205 x 10^6 cc (cubic centimeter), what is…

A: Given : 1. Mass = 1.5 Mg = 1.5 × 103 kg 2. Volume = 2.205 × 106 cc = 2.205 m3  To calculate : Unit…

Q: What is the relationship between these two molecules? A. Identical B. constitutional isomers C.…

A: From the given structural representation we can figure out which type of isomers they are.

Q: A solution of CaCl₂ in water forms a mixture that is 33.5% calcium chloride by mass. If the total…

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Q: Write the line notation for the following cell.

A: Given Cell: * Note- In order to determine the Limiting reagent between Br2 and Al, the volume of…

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.