1. How many grams are present in 12 atoms of Potassium? a. 7.8 grams b. 3.91 x 10-22 grams 39.1 grams 7.8 x 10-22 grams C. d.

Q: 4. Which structure below represents the most stable conformation of cis-1-t-butyl-4-methyleyclohexan...

A:

Q: PPH3 Na HM DS H. of

A: In this given question , 1 st step is PPh3 will attack C-I bond . In second step NaHMDS is base and ...

Q: .For the reaction between ammonia (NH3) and hydrochloric acid (HCI) a) draw out the Lewis structures...

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Q: A 0.2121-g sample of an organic compound was burned in a stream of oxygen, and the CO2 produced was ...

A: Given - Sample of an organic compound,       (CxHy) = 0.2121 gram   Barium carbonate, ( BaCO3) = 0.6...

Q: ame each epoxide: CH3 Hory b. с. (two ways) a. (two ways) CH3 Name the following compounds: (c) CH2C...

A: a) CH3NHCH2CH3 The IUPAC name of the given compound is N-methylethanamine.          

Q: (a) Express the chemical equations that are characterised by the stepwise stability constants for th...

A: For [Ni(H2O)4(en)]2+ Ni2++4H2O+en→[Ni(H2O)4(en)]2+ Stepwise stability constant, K1=[Ni(H2O)4(en)]2+[...

Q: A sample containing 0.2784 grams of sodium chloride (NaCl) and 0.5486 grams of magnesium chloride (M...

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Q: A sample of ideal gas at room temperature occupies a volume of 15.0 L at a pressure of 752 torr. If ...

A: Given, Note: 760 torr = 1 atm Initially: Pressure of a gas (P1) = 752 torr = 0.989 atm Volume of a g...

Q: To which of the following would the addition of an equal volume of 0.60 M NAOH lead to a solution ha...

A: Since, PH=-log[H+]

Q: LU dCcess important values if needed for this question. Consider the following system at equilibrium...

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Q: Statement 1: Approximately, there is 70 degrees bond angle difference between compound1&2 Statement...

A: Since the C≡C bond length is 1.20 Å the C-C bond length is 1.54 Å.

Q: Which sentence is false about gravimetric analysis? a. It is used for inorganic b. It is used to a...

A: The statement which is false about gravimetric analysis is, Relative precision 3% to 4%

Q: 6. Which symmetry elements are lost on going from (a) BC13 to BCl2F and (b) BC12F to BBRCIF. Which s...

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Q: pH

A:

Q: Can you make a suggestion for a research topic about disaster risk? or any topic that can be modifie...

A: Sure.

Q: How do you use a ICE chart to determine the pH of vinegar? Ka of acetic acid = 1.8*10^-5

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Q: Which of the following structures would be expected to show the parent molecular ion peak of [M] = 9...

A: We have to tell among the given compounds which of the structures show parent molecular ion peak at ...

Q: e. Can we relate the number of valence electrons with the stability of the element?

A: Can we relate the number of valence electrons with the stability of the element Yes, the different n...

Q: If you have both 1-hour and 8-hour data for ozone, report the higher AQI value. Suppose you had a 1-...

A: Firstly we should know about Air Quality Index., Air Quality Index is used to determine how polluted...

Q: Balance the following redox reaction under acidic conditions (include phases for the final equation ...

A: The balancing of a reaction step by step explained below.

Q: mass

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Q: The solubility of HgF is 1.7 x 107 M at 25 °C. The solubility product constant, Ksp, for HgF is:

A: Given :-  Molar Solubility of HgF = 1.7 × 10-7 M  To calculate :-  Ksp value 

Q: Steam reforming of methane ( CH, ) produces "synthesis gas," a mixture of carbon monoxide gas and hy...

A:

Q: The ion PCI4 has a structure that would be described as? a. octahedral b. Square planar c. trigonal ...

A: Which of the following is correct

Q: Make three different C–C disconnections on this ketoester and write out the structures of the starti...

A: C-C disconnection is the process by which target molecule is cleaved to a particular C-C bond to pre...

Q: How many carbon–carbon double bonds, linked together, are needed to make a carbon chain that is 1.00...

A: Average carbon–carbon double bonds distance is = 1.34 A°  C=C long chain will be  C=C =C = C = C =••...

Q: 4. Given the following data, calculate the concentration (molarity) of Sr2+ in a saturated aqueous s...

A: Introduction :  Molarity can be defined as the number of moles of a solute in grams present in 1 lit...

Q: If you start with 150 g of Fe2O3 as the limiting reagent, what is the theoretical yield of Fe? (b) I...

A: Carbon monoxide (CO) reduces ferric oxide to iron.  The calculation shown below.

Q: Give the IUPAC name for each the following compound: a. CH;CH2CH,C(CH3)2CH2COOH b. CH3CH(CI)CH2CH2CO...

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Q: Calculate the molar mass of the following compounds. Please answer 1-2 and show your work. 1. C8H10...

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Q: Given the pair of compounds,AlCl3 and CaCl2, which is more ionic and why ?

A: The existence of covalent nature in ionic bond was explained by Fajans this is called as Fajans rule...

Q: what is the concentration of solution in: c = 12 h = 1 o = 16. % by mass?

A: In the calculation of percentage of mass of concentration both the solute and solvent are to be meas...

Q: An engineer turns the temperature of a gas down, holding the volume constant at 1,250 L. Initially, ...

A:

Q: Describe and give a branded product example for each   Soap Based Facial Wash Synthetic Based Faci...

A: There are the three bases of the face wash.  Soap , synthetic, soap blend based facial washes.  All ...

Q: 1. Use the Rule of 13 as well as the isotopic ratio (M, M+1, etc.) to determine a molecular formula ...

A:

Q: There are two isomerism in coordination complexes which are structural isomerism and stereoisomerism...

A: a) Possible structures of below complexes- b) The isomers in which the molecules having the same mo...

Q: need solution urgently   Consider the reaction Ba(OH)2(aq) + 2HCl(aq) ? BaCl2(aq) + 2H2O(l) 100. m...

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Q: Questions: 1) Explain the solubility of acetic acid in water.

A: Since you have posted with multiple questions, as per guidelines we will solve only first question f...

Q: (b) Addition of HBr to the alkene in the presence of peroxide form radical intermediates. Based on t...

A:

Q: Multiple Choice: 1. The name of the compound PCl5 is A. Phosphoric chloride        B. Phosphorous pe...

A: Question 1 : Structure of PCl5 :

Q: 7. Propose a structure for the alkene having the mass spectrum shown below. Assume that there are no...

A: Answer of it is Given below

Q: Which of the following pairs of aqueous solutions, when mixed, would result in the formation of a pr...

A: Given that, pairs of aqueous solutions  NH4Cl and NaOH, CuSO4 and LiCl, Na2SO4 and Ba(NO3)2,  KNO3 ...

Q: A type of ceramic with a mixture of lime (CaO), silica, (Si)2), and alumna (Al203) which sets when m...

A: A ceramic is any kind of material made from inorganic nonmetallic material which possess the propert...

Q: В. С. :CI;

A: Halogenation of carboxylic acid at alpha- position is known as Hell-Volhard Zelinsky Reaction or HVZ...

Q: A. The mechanism of reaction A is: CH,S Na CHCN O SN2 O E2 O SNl El B. B. The mechanism of reaction ...

A: We have given three reactions and we need to tell which type of reactions is this, All of these are ...

Q: 50.0 g iron ball (sp ht = 0.473 J/goC) is heated to 35oC and is placed in a calorimeter holding 100....

A: Given  Mass of iron ball = 50 g  Specific heat of iron =0.473 J/goC  Mass of water = 100°C  Initial ...

Q: For problem 5, the density of the sample is 0.9977 g/mL and the molar mass of calcium carbonate is 1...

A: Density of sample = 0.9977g/ml mass of 50ppm sample = 0.9977g/ml × 50ml = 49.885g = 0.049885kg Conce...

Q: Which of the following compounds contain primary (1°) radical carbons? II III IV A) Only I B) Only I...

A:

Q: O ACIDS AND BASES D 3/5 Identifying the major species in weak acid or weak base.. The preparations o...

A: In an aqueous solution, an acid is a compound that produces hydronium ions H3O+ while a base produce...

Q: Compute the oxidation number of the stated element. Give also the name of the compound and its % com...

A: The sum of the charges of constituent elements in the molecule should be equal to the charge of the ...

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.