any MOLES

Q: urticaria is analyzed and found to contain 64.87 %C, 6.44 %H, 9.13 %CI, 7.21 %N, and the rest as 0 (...

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Q: For each of the following compounds, draw its structure. Be sure to shown proper stereochemistry in ...

A: As per guidelines , if multipart question is present first 3 (a, b, and c) are allowed to answer, pl...

Q: Name the following bases: a. KOH b. LiOH c. Ca(OH)2 d. Al(OH)3 e. NaOH

A: Ans.  a. KOH- potassium hydroxide b. LiOH- Lithium hydroxide c. Ca(OH)2 - calcium hydroxide

Q: Consider the following unbalanced particulate representation of a chemical equation: N= blue H= ligh...

A: Given that, Blue represent N Light blue represent H so,

Q: Propose a structure for an organic compound with molecular for mula Ca HH04 given the pollowing 'HNM...

A: There are 3signal in 1H NMR spectra Triplet (6H ) , singlet (3H) , quadret (4H)  Degree of unsaturat...

Q: This sketch of a neutral molecule is shaded red or blue wherever the electrostatic potential at the ...

A: General chemistry.

Q: Complete the following reaction. 2 HN CH;CI

A: Amine reacts with acid chloride to form amide.  

Q: H2SO4 H20

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Q: A weak acid, HA, undergoes only partial ionization in water: HA (aq) + H2O (I) → H3O* (aq) + A (aq) ...

A: • The ionisation of weak acid, HA is,    HA(aq) + H2O(l) ⇌ H3O+(aq) + A-(aq)    • We need to write t...

Q: An acidified potassium dichromate solution is analysed by absorbance at 350 nm. Given that the 4.2 x...

A: Concentration = C = 4.2 × 10-5 M  Absorbance = A = 0.367  Path length = l = 1cm 

Q: O polar covalent. O metallic. ionic. 23 O nonpolar covalent. O coordinate covalent. Clear my choice

A: Given are types of bond.  

Q: Arrange the compounds below in decreasing order of the ionic character of the bonds in them. That is...

A: Ionic Bond formed between atoms with electronegativity differences.   

Q: QUESTION 7 Given the following reaction, Cu2*(aq) + Zn(s) - Cu(s) + Zn2*(aq) E° = 1.10 V Use the Ner...

A: Cell potential of given cell can be calculated using nernst equation.

Q: What is the result and discussion for experiment determination of Hardness of water EDTA titration

A: Hardness of water is mainly due to dissolved salts of calcium and magnesium, which makes it unfit fo...

Q: explain why diamond is a very hard substance and graphite (e.g. pencil ‘lead’) is very soft.

A: The solution is given below - 

Q: For each of the following reactions, draw the product(s). In addition, for those reactions that have...

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Q: aq Br2

A: Given reaction is bromination reaction.  When alkene reacts with aqueous bromine , bromo alcohol is ...

Q: Write both products of the elimination shown. Label the major product. Explain why it is major. CH31...

A: Given reaction is elimination reaction. 

Q: Consider the following galvanic cell:     E° (V) Sn4+  +  2 e−   →   Sn2+ 0.139 Ag+  +  e−   →...

A: Given cell reactions with E0 values: Sn4+  +  2 e−   →   Sn2+    E0 = 0.139 V Ag+  +  e−   →   Ag(s)...

Q: Why are the combination of elements S and O are more likely to form a polyatomic ion than K and F?

A: A polyatomic ion is the ion which is formed by two or more number of atoms combine together covalent...

Q: 11. Provide an error analysis of the following VSEPR structure. What is incorrectly done? According ...

A: VSEPR theory : The valence shell electronic configuration of N is 2s^22p^3. Hence, N atom has 5 vale...

Q: Determine the standard enthalpy (ΔH) for this reaction and explain the cooling effect that is exper...

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Q: Calculate the number of moles in 41.2 g of zinc

A: Given: The given mass of Zn, (m) = 41.2 g. The molar mass of Zn, (M) = 65.409 g.  

Q: Question 8 The OH concentration in a 1.0 x 10 M Ca(OH)2 solution is: 0.50 x 10-3 M O 1.0 x 103 M 1.0...

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Q: Indicate the major organic product from the reaction shown. NH2 1. HNO2 HCI 2. KCN

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Q: Consider the balanced equation shown below: A (g) + 4B (g) 2C(g) + 4D(g) If the rate of consumption ...

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Q: Predict the products expected when propyne is treated with sodium amide followed by ethyl iodide. Wr...

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Q: 1. Which scientist discovered the quantized nature of electrons? а. Bohr d. Planck b. Dalton e. Ruth...

A: Electron has quantized nature.  

Q: What is the value (in V) of Eocell for the following reaction? Co2+ (aq) + Fe (s) → Co (s) + Fe2+ (...

A: Chemical Reaction :-   Co2+ (aq) + Fe (s) → Co (s) + Fe2+ (aq) E°cell  = E°right (reduction potentia...

Q: Fe,O;(s) + 3CO(g)→2FE(s) + 3CO, (g)

A: Change in oxidation no. Of Fe = +3

Q: If the boiling point of the distillate is 83.7 degrees C. How does the boiling point compare to the ...

A: Boiling point of a compound depends on the strength of intermolecular forces. Greater is the intermo...

Q: Consider the following galvanic cell: E° (V) Sn4+ + 2 e− → Sn2+ 0.139...

A: We are given an electrochemical cell, where a redox reaction takes place.  

Q: Consider the following galvanic cell:     E° (V) Sn4+  +  2 e−   →   Sn2+ 0.139 Ag+  +  e−   →...

A: Galvanic cell is the one in which chemical energy converted into electrical energy by spontaneous ce...

Q: Is there much flexibility in the structure of benzene or can you assign a definite shape to the enti...

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Q: add to each of the following solutions in order to create a buffer. a) 50 mL of 0.1 M HOCl +  b) 2...

A: Buffer solutions are solution whose pH do not change much on addition of acid or base. They are of t...

Q: The central atom hybridization is sp³d2 in . ., choose one. O SeF6 BRF3 2- O NO3 O BF4

A: the correct option is as follows:  

Q: Alkanes are hydrocarbons containing only single bonds. Acyclic alkanes have carbon atoms arranged in...

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Q: What is the enthalpy change during the process in which 100 g of liquid water at 50.0°C is cooled to...

A: Cooling of water from 50°C to 0°C    Given:  m = 100g  ∆t = 0°C - 50°C = -50°C  cH2O(l) = 4.184 J/g°...

Q: Calculate the ionic strength of 0.0084 M NaOH. M Calculate the ionic strength of 0.00040 M La(IO, ),...

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Q: NBS hv/heat/ROOR 16. Which is not a product? Br Br Br а. b. d. not a.-c.

A: The given reaction s an example of an addition reaction. In the reaction, NBS helps in the addition ...

Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 38.3 g of calcium bromide ...

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Q: What type of Ion should the element Francium (Fr) make and what charge? What about Sulfur (S)?

A: Given To know ionic charge of Francium(Fr) abd Sulfur(s).

Q: For which one of the following reactions is the value of ΔH°rxn EQUAL to ΔH°f for the product? a. N...

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Q: 2. Czarnowski and H.J. Schuhmacher (Chem. Phys. Lett. 17, 235 (1972)) suggested the following mechan...

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Q: Identify all the types of van der Waals interactions present in the following molecule. PCI3 A. disp...

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Q: Assign an IUPAC name to each of the following car- boxylic acids. a. q HO OH с. d. СООН HO

A: Steps to write IUPAC name of carboxylic acids:    STEP 1. Choose the longest carbon chain that conta...

Q: The following reaction occurs in a new battery called the super iron battery. In this reaction, ____...

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Q: Predict whether the following salts will form a solution that is acidic, basic or neutral. A) Sr(Cl...

A: A. Sr(ClO)2 on hydrolysis gives Sr(OH)2 and HOCl. Sr(ClO)2 + 2H2O = Sr(OH)2 + 2HOCl  Sr(OH)2 is a st...

Q: Ascorbic acid (vitamin C, C6H8O6) is a diprotic acid (Ka1 = 8.0×10–5 and Ka2 = 1.6×10–12). What is ...

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Q: Is the structure of C4H6 rigid? (i.e. is it unable to rotate/move?) If not, which part of the molecu...

A: Yes C4H6 have rigid bond structure it possess two structural isomers.

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".