Atomic Mass % Average Atomic mass Element Known Isotopes amu Abundance (amu) 14 14.0031 99.63 Nitrogen 15 15.0001 0.37

Q: Calculate the initial ferric ion concentration, [Fe*]o, in the reaction mixture obtained by combinin...

A: Given: Volume of Fe3+ = 2.00 mL Concentration of Fe3+ = 0.00218 M Volume of SCN- = 500μL = 0.5 mL   ...

Q: 18 ic weights are based on the Atomic Elements 1995 publishedby IUPAC Не 13 14 15 16 17 4.003 6. 10 ...

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Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many solid fertilizers. It can be made ...

A: • Aqueous phosphoric acid on reaction with liquid ammonia gives solid ammonia phosphate.    • This c...

Q: Time (min) Which separation is better? What can cause this behaviour (if all other conditions are th...

A: To explain which separation is better.

Q: 1. What are the two reactants used to synthesize the Aspirin? 2.  Why is water added to the reactio...

A: Aspirin is synthesized through the esterification of salicylic acid by the acetic anhydride.The reac...

Q: .Cathode is . terminal Negative. O Positive.

A: Cathode is positive terminal in electrochemical cell. Cathode is negative terminal in electrolytic c...

Q: The boiling points of aldehydes and ketones is higher than that of alkanes but lower than that of al...

A: Boiling point :-  The temperature at which vapor pressure of a liquid becomes equals to atmospheric ...

Q: Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O.  It is the primary material in sheet rock, ...

A: Weight of Gypsum( CaSO 4 · 2 H 2O)  = 21.05 g

Q: Calculate the pH of the following solutions 0.0040 M Ba(OH)2

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Q: Draw the condensed structural formula or skeletal formula of the hemiacetal and acetal products form...

A: Hemiacetal and acetal are protected  forms  of aldehyde carbonyl  group by reaction  with alcohol  i...

Q: ata, détérmine the order of the reaction with respect to 2NO(g) + Cl2(g) 2NOCI(g) [NO] and the overa...

A: Given equation -> 2NO + Cl2 -> 2NOCl Suppose m is order with respect to NO and n is order with...

Q: (a) Discuss the various types of electronic transitions that can occur in a molecule after absorbing...

A: On absorbing UV radiations, molecules can show various transitions, let us discuss one by one. 

Q: Ammonium phosphate (NH4),PO4) PO, is an important ingredient in many solid fertilizers. It can be ma...

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

Q: Predict the product for the following reaction. PCC/ CH,CI2 2-Hexanol O hexanoic acid O hexanal O 2-...

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Q: Which of the following molecules containing nitrogen and oxygen has identical empirical and molecula...

A: Please find your solution below : Molecular formula of a compound is a formula that shows the exact ...

Q: *.Chemical reaction in primary batteries is Not reversed. O Reversed. O

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Q: Answer in not more than 5 sentences per question 1. Discuss the a) direct method of weighing b) indi...

A: Note: You have uploaded 4 different questions at same time. But i can solve only 1st que As per Bart...

Q: What is the concentration of each ion in each of the following solutions? (assume complete dissociat...

A: Given: Aqueous solution of K2CO3 = 0.550 M Aqueous solution of HClO4 = 0.345 M

Q: 44. Select the answer choice that correct identifies if the bonds formed would be nonpolar covalent,...

A: 1) Ionic bonds : bonds that are formed by complete transfer of electrons.Generally formed between a ...

Q: The initial enrichment of uranium in LWRS is 3% and the final (at discharge after 3 years in the cor...

A: Here we find out average neutron flux that is decay rate. The corresponding answer given below.

Q: . Calculate the ionic strength of 0.040 M Na2SO4.

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Q: Predict the major organic product for the following multistep sequence. Be sure your answer accounts...

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Q: The following results were obtained in the replicate determination of the lead content of a blood sa...

A: Please find your solution below : Standard deviation is a measure of amount of variation of a set of...

Q: Question 4 Consider the following reaction, which is initially at equilibrium. Which of the followin...

A: Le Chatelier principle help in prediction of the direction of the equilibrium Here we are required t...

Q: A sample of solid sodium hydrogen phosphate is dissolved in water and allowed to come to equilibrium...

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Q: Calculate the amount of heat produced when 3.057 L of liquid acetonitrile (C,H,N) is burned in exces...

A: First calculate mass of acetonitrile by using density and then moles of acetonitrile.

Q: Why, the rates of reactions involving Co and Cr" be different from those involving other first-row t...

A: Co and Cr is first row transition metal but rate of reaction is different than other first row eleme...

Q: For each system listed in the first column of the table below, decide (if possible) whether the chan...

A:                     Entropy is measured by randomness.  More is randomness ,more will be entropy.  I...

Q: Finding mole ratios from chemical formulae This is the chemical formula for methyl tert-butyl ether ...

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Q: a. core electron configuration of Po. (Z = 84) b. electron configuration of cesium ion.

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Q: A sample of mixture of Na,SO3 and Na,S,03 is dissolved in water and reacted with HCl. The equations ...

A: G

Q: Name the following compound (Z)-2-methyl-2-butenal (Z)-2,3-dimethyl-2-propenal O (E)-2-methyl-2-bute...

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Q: [References) a. Write the electron configuration for Rb*. (Express your answer as a series of orbita...

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Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 2 SO,(9)+O2(g) –→2 SO3(g) The re...

A:     Recall the given reaction,  2 SO2 (g)  +  O2 (g)                     2 SO3 (g)  is an exothermic...

Q: What is the change in volume for a system under a constant 2 atm pressure that releases 807 J of hea...

A: given :-  heat released = 807 J  constant pressure = 2 atm  change in internal energy = -300.5 J  1 ...

Q: chromium (VI) phosphate_ vanadium (IV) carbonate tin (II) nitrite cobalt (III) oxide titanium (II) a...

A: see below 

Q: A buffer is made using 200.0 mL of 0.100 M (CH3)3N (trimethylamine) and 100.0 mL of 0.200 M (CH3)3NH...

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Q: Liquid hexane (CH,(CH,) CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (C...

A:

Q: Sodium bicarbonate is added to water and allowed to come to equilibrium according to the reaction be...

A: Given reaction : NaHCO3- (aq) + H2O (l) →H2CO3 (aq) + NaOH (aq) Give that, At equilibrium, pOH = 12....

Q: 1. H2SO4 (cold) ? 2. H2O (heat)

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Q: Solution 10% w/v solution of NaCl means that. * O 10 gm of NaCl in 100 ml of solution. O 10 gm of Na...

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Q: How does ammonia, dimethylglyoxime (DMG), and 8-hydroxyquinoline (8HQ) interact with your cations, l...

A: In paper chromatography, substances are distributed between a stationary phase and a mobile phase. T...

Q: How many ions would form if the following could dissolve in solution? (NHa)2S

A:

Q: What is a protecting group in a multi synthesis reaction in organic chemistry

A: Protecting groups are used in synthesis to temporarily mask the characteristic chemistry of a functi...

Q: At a certain temperature, the equilibrium constant K for the following reaction is 1.3: CL(e) + CHCI...

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Q: A chemical engineer is studying the following reaction: H,(9)+I½(9) → 2 HI(g) At the temperature the...

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Q: If you discover a mutant yeast whose glycolytic pathway was shorter because of the presence of a new...

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Q: (Q103) Consider the formation of phosphorus pentachloride from phosphorus trichloride and chlorine g...

A:          PCl3(g) + Cl2(g) -----> PCl5(g) I :    0.450 M   0.450 M    0.100 M

Q: Which one hardness type that remain after boiling process. O Temporary hardness. O Permanent hardnes...

A: Given question is : Which one hardness type that remains after boiling process.  (a). Temporary hard...

Q: A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as the cathode. Which of...

A: Solution  1.Compare the reduction emf of both  Sn2+/Sn : E°red = -0.14V  Ag+/Ag : E°red = 0.80V   We...

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.