A 0.720 mol of Ca3(PO4)2 sample weighs how much in milligrams? What is the mass in grams of 4.5x10^24 formula units of Li2CO2? How many chlorine atoms are there in 237 grams of CCl4? Convert 3.4x10^23 molecules of H2SO4 to moles.

Q: An unknown compound has the following chemical formula: PtClx where x stands for a whole…

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Q: how would that be put into dimensional analysis

A: The required conversion factors are: 1 dose = 2 tsp 1 bottle = 12 ounce  1 ounce = 6 tsp

Q: Give the products for the following reactions; propose a mechanism to explain the formation of each.…

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Q: For the reaction below, Kc = 9.2 × 10⁻⁵. Note Kc is sometimes called K. What is the equilibrium…

A: Given: Kc = 9.2 × 10⁻⁵ Initial concentration of A = 0.14 M

Q: Why does acetone [ (CH3)2C=O, dipole moment = 2.69 D] have a larger dipole moment than phosgene…

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Q: Proteins 1 and 2 interact strongly. A significant part of the interaction is between the amino acid…

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Q: HO O -N H H O 1. LiAlH₂ 2. H₂O cat. H+ 1 equiv. EtOH - H₂O cat. H+ - H₂O 2. ? ? 2. ?

A: LiAlH4 is a strongest Reducing agent which reduces ketone to secondary alcohol . Treatment with 2…

Q: concentration for a solution having an absorbance of 0.350 and a molar absorptivity of 420 L mol-1…

A: Absorbance is directly proportional to concentration

Q: Enter a nuclear equation for the beta decay of each nuclide. Pb-211 Express your answer as a…

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Q: 1. Use standard enthalpies of formation from the equation sheets or the back of your book to…

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Q: Do the dangers derived from the use of chemicals in food production and preservation outweigh the…

A: Food additives are added to the food so as to improve its taste, texture, appearance, and life time.…

Q: Below are drawn three resonance structures corresponding to a real molecule. Which of these…

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Q: Percent Water in a Hydrate Data Table #28 White, grainy, crystal, like sugar/ Salt Unknown Number…

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Q: For the reaction, 2SO2(g) + O2(g) 2SO3(g), at 450.0 K the equilibrium con¬stant, Kc, has a value of…

A: Reaction quotient is denoted by (Qc).   Reaction quotient expression is same as equilibrium constant…

Q: Aqueous ammonia is commercially available at a concentration of 16.0 MM. How much of the…

A: Given: Concentration of concentrated ammonia solution = 16.0 M Concentration of diluted ammonia…

Q: In the molecule shown below, which of the labeled C,C single bonds is the shortest?

A: Given   structure of multiple bonds  Find out the shortest C-C bond length

Q: Find the de Broglie wavelength of an electron in the n=2 orbital of a helium atom.

A: Answer: De Broglie hypothesis suggests that every electron has dual nature. It can act like a wave…

Q: What is the product of the following reaction? NaBH4 ethanol Multiple Choice О H CH3CH₂CH₂CH₂CH₂CO₂H…

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Q: For each of the molecules shown below, draw the acid dissociation reaction. If a conjugate base has…

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Q: A gas mixture contains 11.0 mol of CO and 4.30 mol of O₂. Compute the mole fraction of CO in the…

A: Given : CO mole = 11.0 mole              O2 moles = 4.30 mole

Q: A sample of gas has a mass of 0.565  g g . Its volume is 115  mL mL at a temperature of 86  ∘C ∘C…

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Q: Determine the molecular formulas for compounds having the following empirical formula and molar…

A: Empirical formula is the simplest whole number ratio of the atoms present in it. If we know the…

Q: In the Cahn-Ingold-Prelog Convention, used for determining enantiomers and E/Z isomers, bromine…

A: The purpose of the Cahn-Ingold-Prelog convention is to assign the name to a specific stereoisomer of…

Q: Sarah wasn't sure about Ben's results, so she repeated the experiment and found the best-fit line…

A: The molarity and volumes of reactants initially taken are: 5.00 mL of 0.002 M Fe(NO3)3 or Fe3+(aq)…

Q: If 22.5 g of NaOH is added to 0.600 L of 1.00 M Mn(NO3)2, how many grams of Mn(OH)2 will be formed…

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Q: Which step in the mechanism for free-radical bromination of propane is rate-determining? O Br-Br 2…

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Q: 15. Knowing that Nitrogen and Oxygen compounds can combine in a variety of ratios, what is the name…

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Q: Find AH° for the reaction 2H2(g) + 2C(s) + O2(g) → C₂H5OH), using the following thermochemical data.…

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Q: the value of am equilibrium constant can be used to predict each of the following except time…

A: An equilibrium constant Keq is the ratio of concentration of products to that of the reactants,…

Q: What is the mechanism for how p- acetylaminobenzoic acid can be synthesised using a series of…

A: Here we have to write the mechanism and synthesis of above conversion-

Q: Hydrogen  H2  gas   and oxygen  O2  gas react to form water  H2O  vapor. Suppose you have 5.0…

A: •As here H2O is product and we know amount of product is decided by limiting reagent always. •So…

Q: The most serve type of strain in cyclopropane is? A)bond angle strain B) Steric strain C)…

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Q: How much work, w, must be done on a system to decrease its volume from 13.0 L to 4.0 L by exerting a…

A: Here we have to calculate the work done when the volume of a gas decrease from 13L to 4L by applying…

Q: 6. A sample of Magnesium Chloride (MgCl₂) has a mass of 12.94 g. How many atoms of Clare in the…

A: Given = Mass of MgCl2 = 12.94 g

Q: Tamiflu(shown below) is an antiviral medication used to treat influenza. How many asymmetric centers…

A: Stereocenter is a carbon atom which are attached with four different groups of atom.

Q: 4. Calculate the molarity of the unknown concentrated HCl solution provided in the hood. V₁ = 250 ML…

A: Molarity of a diluted solution is calculated by the dilution law. According to this, if M1 is the…

Q: Which statement is true? Bromination is faster than chlorination because the rate-determining step…

A: Asking is, In Given statement choose the true one?

Q: dentify the major produ OH OH XOH OH H₂O H₂SO4 following reaction:

A: In first step generation of carbocation occurs.   Nucleophile attack in second step of reactions

Q: Gases exert a measurable pressure (P) on the walls of their container. The SI unit for pressure is…

A: The relationship between pressure is the pascal  and millimeters of mercury is 101325 Pa = 760 mmHg…

Q: (1) Identify each of the following half-reactions as either an oxidation half-reaction or a…

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Q: poslo or yours 2) Balance and write net ionic chemical equations for each of the following…

A: balance and the net ionic equation for each of the following reactions is given below:

Q: The following glassware is used when we do titrimetric analysis. If the glassware is not fully dry…

A: The given glasswere are  Erlenmeyer flask  Burette  Pipet  Volumetric flask

Q: What is the difference between the standard heat of the formation of ammonia from nitrogen gas and…

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Q: A solution has a pH of 10.80 at 25 °C. What is the hydroxide-ion concentration at 25 °C?

A: pH is defined as the negative logarithm of hydrogen ion, H+ concentration of base ten .The…

Q: Each of the following compounds does not react in a Diels-Alder reaction. Explain why in each case:

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Q: Explain how you would dilute 14.8 M of ortho(phosphoric acid), H3PO4 to make 500.0 mL of 0.296 M…

A: Here we are required to dilute 14.8 M of ortho phosphoric acid to 500 ml of 0.296M ortho phosphoric…

Q: While ethanol (CH₂CH₂OH) is produced naturally by fermentation, e.g. in beer- and wine-making,…

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Q: A quantity of 85.0 ml of 0.9M HCl is mixed with 85 ml of 0.9M of NaOH in a constant pressure…

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Q: Which of the following bonds has the longest bond length? LA HILA Li Be 11 12 Na Mg 19 20 x₂ K Ca Sc…

A: Given bonds: C-C C-O C-N C-F We have to find the bond that has the longest bond length.

Q: Enter a nuclear equation for positron emission by each nuclide. Co-55 Express your answer as a…

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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.