How many Ti atoms are there in a 90.3 gram sample of Ti ? =        atoms

Q: Name these aromatic compounds properly. Love b) NO₂ a) 1₂11 CA3 Br

A: Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more prior…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: Rule of significant digit-1) In non decimal number, 0 comes after non-zero not count in significant…

Q: Calculate for overall mean and pooled standard deviation.

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Q: How is TLC useful in determining the identity of a sample?

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Q: What amount (moles) is represented by each of these samples? 32.2 mg caffeine, CaH10N4O2 Amount =…

A: Given:  1) mass of caffeine= 32.2 mg = 32.2 × 10-3 g = 0.032 g  2) molecules of ethanol= 4.58 × 1021…

Q: lonic compounds are formed when a metal reacts with a nonmetal. Which two elements combine to form…

A: Ionic compounds are formed between ion. Metals lose electron and form cation while non-metal accept…

Q: Which of the following would you expect to boil at the lowest temperature? Why? Which of the…

A: Boiling point is the temperature at which vapour pressure becomes equal to atmospheric pressure.…

Q: MISSED THIS? Watch KCV: Limiting Reactant, Theoretical Yield, and Percent Yield, IWE: Limiting…

A: Iron(II) sulfide reacts with hydrochloric acid to form iron(II) chloride and hydrogen sulfide. The…

Q: How many valence electrons do atoms of each of the elements have? Li: Br: B: N: valence electrons…

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Q: For the following reaction, 6.96 grams of hydrogen gas are mixed with excess nitrogen monoxide. The…

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Q: Determine the bond angle for H2CS Express your answer using three significant figures.

A: Steric number of H2CS is 3 so it is sp2 hybridized.  Steric number = number of Sigma bond + number…

Q: A     student     carried     out     the     reaction     below     starting     with     1.993…

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Q: Consider hydrofluoric acid being titrated with sodium hydroxide. What is present at the equivalence…

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Q: A student ran the following reaction in the laboratory at 583 K: CoCl₂(g) co(g) + Cl₂(g) When he…

A: As you have posted multiple questions so we are answering first question for you,for remaining…

Q: 3. Ca(HCO3)2 is called calcium bicarbonate. It is one of the most abundant compounds in water, the…

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Q: Which aqueous solution has the lowest freezing point? (Assume complete dissociation for…

A: Question: which of the aqueous solution has lowest freezing point?  Given 5 option of different…

Q: For the reaction 2A-38-2C under a given set of conditions, the initial rate is 0.030 M/s. What is…

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Q: Write the Proton Balance Equations for the following solutions: 1) H2SO3 2) Na2SO3

A: Write the Proton Balance Equations for the following solutions:1) H2SO32) Na2SO3

Q: What correlations does a COSY spectrum reveal in the off-diagonal peaks?

A: COSY : Correlation SpectroscopY ( Cross peak correlation )  It is one of the two-dimensional…

Q: a. Draw the structure of this molecule as a hexagon with dash(es) and/or wedge(s). ha -OH b. Draw…

A: According to the bartleby guidelines I can solve only first three questions. So I am solving (a),(b)…

Q: For each of the following ions, indicate the noble gas that has the same Lewis structure as the ion.…

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Q: 1.Name the following alkenes according to the IUPAC nomenclature rules. Determine if the…

A: There are 2 types of alkene on basis of the priority group-  1- (E)- alkene in which higher priority…

Q: 1) What is the element with an electron configuration of 1s22s22p63s23p64s23d¹? (2) What is the…

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Q: However, while helium and krypton are very close to ideal gases, they are not exactly ideal.  What…

A: For gas atoms/molecules to be ideal, we consider that there is no intermolecular force of attraction…

Q: 14. a) A student drew the following reaction. Below explain why it is WRONG. H N. :CEN H b) Would…

A: #14:(a): Here CN- acts as a strong base and donates electron pair to H of conjugate acid, CH3N=CH2.…

Q: At normal pressure, what is the total amount of heat (q) in Joules that must be added to 42 grams of…

A: Here we are required to find the energy needed to heat water of mass 42 gm from 40°C to 148°C

Q: The boiling point of water is 100.00 °C at 1 atmosphere. A student dissolves 11.96 grams of…

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Q: 6. Nitrogen dioxide dimerizes according to the following reaction: 2NO₂(g) = N2O4(g) Kp = 6.9 at 298…

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Q: 1A H2A 3A 4A SA BCNO Na Mg 38 48 58 68 7888 18 28 Al Si P Ge As 8A At Rn (1) What is the name of the…

A: Here we are required to name of element which has the following valence electronic configuration.

Q: Classify each of the following species as a weak or strong acid: (a) HNO3, (b) HF, (c) H₂SO4, (d)…

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Q: What is the wavelength of a light with a frequency of 7.26 * 10¹4 Hz? What region of the EM spectrum…

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Q: Write a complete, step-by-step mechanism for the reaction. 1. Sulfonation of benzene ON H 2. Free…

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Q: Determine the molecular formula of a compound that contains 26.7%P, 12.1% N, and 61.2% Cl, and has a…

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Q: Grade 12 Biology Chapter 1 Multiple Choice 1. When does a polar covalent bond form between two…

A: Please note: As per our company guidelines we are supposed to answer only three parts of one…

Q: Choose the Fischer projection that is the enantiomer of the structure shown. CH3 H H3C- CI- H -Br -H…

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Q: Calculate K, for each of the following reactions at 298 K: a. N₂O(g) 2NO₂(g) Kc = 5.9 x 10³ b. N₂(g)…

A: The relation between Kp and Kc is given as : Kp=KcRT∆n Here, R = Gas constant = 0.08206 atm.L/mol.K…

Q: For the following reaction, 11.8 grams of magnesium nitride are allowed to react with 15.9 grams of…

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Q: Write a Lewis structure for each of the following molecules. H3COCH3 (oxygen is between the two…

A: we need to draw the Lewis structure of H3COCH3

Q: Consider a solution of 0.877 molal (m) ethanol in water. Considering the normal boiling point for…

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Q: 3. consider the following addition reaction - two Possible Products and shown. will these foory in a…

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Q: | 1) Ph3P 2) nBuLi 3) 。

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Q: Calculate the energy (in Joules) for light with the frequency of 3.1 × 10^4 Hz.

A: Given -> Frequency= 3.1 × 104 Hz (Hz = 1/s)

Q: Copper(II) sulfate pentahydrate can be decomposed (dehydrated) by strong heating according the…

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Q: If your front lawn is 25.feet wide and 20.0 feet long, and each square foot of lawn accumulates 1450…

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Q: Calculate ΔGinward. Is energy required for transport to happen? A cell at 37°C with a -0.05 V…

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Q: Ascorbic acid, or vitamin C (C6H8O6), is an essential vitamin. It cannot be stored by the body and…

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Q: MISSED THIS? Watch KCV: Reaction Stoichiometry, IWE: Stoichiometry, IWE: Stoichiometry; Read Section…

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Q: A compound is 40.0% C, 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this…

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Q: convert 0.750 moles of CuCl2 to mass in grams. b) 25cm3 of sodium hydroxide solution of unknown…

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Q: What is the pressure (in bar) of Cl2(g) in a corresponding state with N2(g) at 239 K and 14.1 bar?…

A: Law of Corresponding states: Two or more substance having the same reduced temperature and the same…

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.