Determine each statement if it is positive or negative base on the chemical structure in the picture.   Green flame with Beilstein’s test    White precipitate with silver nitrate   Black residue due to complete combustion    White precipitate with BaCl2 solution    Yellow precipitate with ammonium molybdate    Red precipitate with Millon’s Reagent

Q: What is the molecular formula if the empirical formula is C2H5 and the molecular molar mass is 58.14...

A: Empirical formula = C2H5  Molecular molar mass = 58.14 g/mol  Molecular formula = ? 

Q: QUESTION 9 An energy bar contains approximately 16.7 grams of protein. Given that the energy content...

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Q: How many moles are present in 100 mL of a 0.15 M solution of HCl?     0.150 moles     15.00 moles ...

A:

Q: Table 2-2: Data and Calculations for Metal + HCI (aq) Write all units next to the numerical values. ...

A: Given data:

Q: While not true in general, many aqueous reactions approximately double their rate for an increase in...

A: Given, If a reaction performed at 300K doubles its rate when the temperature is increased to 310K, i...

Q: 2) The first atomic explosion was detonated in the desert north of Alamogordo, New Mexico, on July 1...

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Q: Which of the following trends is arranged in increasing wavenumber? form left to right! O C-H - C-0 ...

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Q: Why are there multiple products produced from the halogenation of Alkanes with ultra light

A: Halogenation of alkane: Alkanes can be halogenated in the presence of light or heat. The alkane does...

Q: The following data represented the concentration of ofloxacin present in chicken meat samples: 4.17,...

A:  Percentage relative standard deviation is given by formula  % relative SD =(standard deviation / me...

Q: Answer the following. Choose from the provided choices. 1. A molecule has a molecular formula of A2...

A: Here we have to determine the number of valence electrons in X atom in chemical species A2X3^2- in t...

Q: 2. What power does a pump develop to lift 45 L of water per minute from a depth of 115 m? (1L of wat...

A: Power is defined as the rate at which work is done upon an object.

Q: Sample.sakulatim Show your work for the following caleulations uning data from sample E a) Initial s...

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Q: A student prepared an equilibrium system using Fe(NO3)3 and KSCN, which reacted to produce iron(III)...

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Q: What is the product of the following reaction?

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Q: minor  product for 2-butanol and HCl ?

A:   When alcohol is treated with HCl it gives alkyl chloride  Carbocation intermediate is formed in t...

Q: What is the concentration of cobalt in mM?

A: The data given is,

Q: The osmotic pressure of blood at 37o C is 7.6 atm. A solution that is given intravenously must hav...

A: Osmotic pressure  = 7.6 atm  Temperature = 37 °C   Molarity of glucose solution = ?   

Q: ou have 729 mls of water and you want to make a 0.864 molar (M) solution of barium hydroxide.  How m...

A: Given : Volume = 729ml  Molarity = 0.864M

Q: What is the concentration of copper in mM?

A: The data given is,

Q: Why is this Beckmann rearrangemnt useful for the synthesis of acetaminophen?

A: A question based on introduction to organic chemistry that is to be accomplished. 

Q: Calculate the molar mass (g/mol) of a strong electrolyte (i = 2.16) where 40.87 g of the compound is...

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Q: ck all of the compounds on this list that are soluble in room temperature water.   AgBr         PbSO...

A: Given : We have to tell which among the following is soluble in water.

Q: b. NO2 НООС. NO2 С.

A: Nitration, halogenation, Friedel craft alkylation and acylation , all these reactions are aromatic e...

Q: 7. Calcium chloride, is added to a canned vegetables to maintain the vegetable's firmness. When adde...

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Q: HO Но H- H -HO- 1.) HO. + Resorcinol/dilute HCl

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Q: None of the above

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Q: What is the order of the reaction with respect to P? What is the order of the reaction with respect...

A: The sum of the exponent term in the rate law for a chemical reaction is known as the order of the re...

Q: According to the Walsh diagram, why is NH3 pyramidal while BH3 is planar? Which molecule should hav...

A: Answer: Walsh diagram predicts the structure of the molecules on the basis of total number of valenc...

Q: A solution of table sugar in water contains 5.25% by mass sucrose. Calculate: a)the mass of sucrose ...

A: To find out mass of sucrose first check mass in 5.25% solution. Use that relation to find mass of su...

Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate cons...

A: The rate of the zero-order reaction does not depend on the concentration of the reactant. For the ze...

Q: IUPAC NAME

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Q: Draw the Haworth structure of the tetrasaccharide.

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Q: Calculate the molar mass of a compound if 0.393 mole of it has a mass of 252.0 g. Be sure your answe...

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Q: Consider the following system at equilibrium where AH° = 87.9 kJ, and K. = 1.20x10-2, at 500 K. PCI5...

A: Given : We have to check the effect at equilibrium.

Q: Claim: What makes chomical bonding he same wih real-fe sanuations? State your answer in one (1) sent...

A: Claim :- Personal nature and forming relationships with others.    Evidence :- 1.This is what causes...

Q: 3 Si + 2 N2 → Si3N4  When 21.44 moles of Si reacts with 17.62 moles of N2, how many grams of Si3N4 a...

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Q: What rate is being referred to by the following expression rate = [ 6 x10-3 mol/L)/0 sec rate = [ 3 ...

A: Rate of reaction = Change in concentration / Change in time   Depending upon the time range used, on...

Q: KHC8H4O4 function as monoprotic acid. If 1.46 grams of the sample of impure KHC8H4O4 requires 34. 3 ...

A: Given Potassium hydrogen phthalate is a monoprotic acid

Q: HO-CH3 (d) H* (e) H20 HCI (g) CH3-C=N + H20 Heat +

A: Please find your solution below : A reaction is a process in which a chemical substance gets transfo...

Q: Calculate the volume (in mL) of a 1.205M stock NaOH solution needed to prepare 250.0 mL of a 0.1157M...

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Q: Which salt could be added to an aqueous solution of HNO2 to suppress the deprotonation of the acid?S...

A: Common ion effect:  Common ion effect is observed when a salt  is added to weak acid which contains ...

Q: QUESTION 19 What is the geometry relative to the C atom on the right in the Lewis structure below? ö...

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Q: Select the functional group that is present in the following molecule (select best answer). O Alkene...

A: In organic chemistry, the hydrocarbon containing carbon-carbon single bond, double bond and triple b...

Q: does a co spot on TLC plate have two Rf values?

A: co-spot in TLC

Q: write the electronic congratulations of calcium whose atomic number is 20 and mass number is 40.

A: Given,  calcium whose, atomic number is 20 and mass number is 40. 

Q: how many grams of barium hydroxide will be used up in the reaction with hydrochloric acid to produce...

A: Mole can be defined as a scientific unit for measuring large quantities of very small entities such ...

Q: When the concentration of H+ ions in a solution decreases, a buffer maintains the pH of a solution b...

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Q: Why are the carboxylic acid groups added in a syn orientation during hydrolysis for the following re...

A:   Carboxylic acids upon heating gives anhydride by elimination of water  If we hydrolyse anhydride ...

Q: 2.1. rules me the complete procedure you will use in the lab use by using solubility

A: A question based on analytical separations that is to be accomplished.

Q: statement

A: When a pure substance changes phase from subcooled liquid to superheated steam, this CAN be reversed...