What

Q: You will be measuring the heat released in different chemical reactions Solid NaOH dissolving in ...

A: The chemical reactions in which heat is released by the formation of product from the reactant are c...

Q: The ionization constant for water (K) is 1.94×10-13 at 75°C. Calculate [H,o*] (in M), [OH- (in M), p...

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Q: /hich two metals produce the highest reading on the voltmeter? Y A magnesium copper magnesium iron z...

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Q: Write a detailed step-by-step procedure for preparing 100 mL of a 0.200 M NaOH solution.

A: Number of moles = mass/molar mass  Mass = moles × molar mass

Q: An electric current is passed through two electrolytic cells connected in series (same amount of cur...

A: According to Faraday's law of electrolysis we can write,  m = ItM/Fv Where m = mass of metal I = Cur...

Q: A 1.384 g sample of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (ACES¬K*, MW = 220.29 g...

A: The reaction is ACES-K + HCI ACES + KCI One mole of HCl reacts with one mole of ACES-K to give one m...

Q: Class 11 Chem

A: Solution- The product is given below;

Q: A student found an unknown solution which had the distinct odor of an organic compound. In an attemp...

A: Given test results: Reagent Color of control sample Color after the test Potassium dichromate ...

Q: Explain why alcohol can be dissolved in water and oil. Justify answer using polarity. Explain why ac...

A: We know, polarity comes from the electrical charges of molecules in a substance.

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an acti...

A:

Q: I need help with 2

A: HOBr(aq)⇌H+(aq)+OBr−(aq)  The expression for Ka is Ka=[H+(aq)]*[OBr−(aq)]/[HOBr(aq)] These are equil...

Q: Draw the major product formed when the structure shown below undergoes substitution in CH3CH2OH with...

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Q: line is one of the 20 amino acids used to form proteins, it contains both a carboxylic acid group an...

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Q: The dotted arrow in this reaction is a placeholder. Select the arrow that best describes the relatio...

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Q: Answer both

A: Depression in freezing point The colligative property in which depression in freezing point of a sol...

Q: 36R) Which one of the following configurations depicts an excited oxygen at A) 1s22s22p2 B) 1s22s22p...

A: Oxygen atom having atomic number 8 having 8 electrons.

Q: What is the bond that links the nucleobase with the sugar?

A: The nitrogenous bases are linked to 1' of the sugar base unit by a N-glycoside bond. Purines are con...

Q: In one process, 5.75 kg of CaF, is treated with an excess of H,SO, and yields 2.45 kg of HF. Calcula...

A: Given :- mass of CaF2 = 5.75 kg  Actual yield of HF = 2.45 kg  To calculate :-  Percent yield of HF

Q: To calculate the number of moles of a compound in a sample, which of the following must you know? * ...

A: Option C will be correct.

Q: Calculate the uncertainty of the internuclear distance, Ax, 12C160.

A: As, E = hvos {v+(1/2)} When v = 0 Then, E = hvos/2 The potential energy of the oscillator at maximum...

Q: KUESTION: 1 Silicon at T=300K contains a acceptor impurity concentration at Na=1016 cm-3. Determine ...

A: Given:-          Let the donor concentration = ND cm-3               Acceptor concentration  NA = 10...

Q: anation Check O 2021 McGraw-Hill Education. All Rights Reserved Terms of Use Privacy Accessibilt

A: Kp is equilibrium pressure and ratio of partial pressure of products to the partial pressure of reac...

Q: For the following dienes, identify whether the molecules has any cis or trans stereochemistry and id...

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Q: Picture

A: Use definition of the equilibrium and concept of Le-chatelier principle.

Q: Hello,  I'm having issues with begining this problem. Could youc break it down for me for understand...

A:

Q: 1. A sample of carbon monoxide (CO) gas has a volume of 7.31L at a pressure of 735 mm Hg and a tempe...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: A 0.2356 g sample containing only NaCl (58.44g/mol) and BaCl2 (208.23 g/mol) yielded0.4637 g of drie...

A: The comparison of the masses of the individual elements to that of the mass of the compound is defin...

Q: Cu (II) sulfate exists as a hydrate. It has many practical uses including use as a fungicide and pes...

A: Given: sampel mass = 42.75 g after heating mass = 27.38 g mass of water driven off = 42.75 -27.38   ...

Q: Determine the number of grams of carbon dioxide produced when 1 gallon of octane reacts with excess ...

A: So, 1 gallon of octane will produce 9939.69 grams of CO2 gas.

Q: What is the pH of a 0.0930 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?

A:

Q: A mixture of gases has the following composition by mass: O2 CO 16% (Xo, = 0.16 g O,/g total) 4.0% C...

A: We have to find molar composition of gases 

Q: 8- An impure 1 g sample of arsenious acid (H3ASO3) is oxidised to H3ASO, by titration with 45 mL of ...

A: The question is based on the concept of quantitative analysis. We are  titrating arsenous acid with ...

Q: Hello, I'm having issues with the problem attached.

A:

Q: 3) write a detailed mechanism for the following reaction: Br hv light + HBr + Br2

A:

Q: Chemistry Question

A: Given data is- Mass of Crucible = 23.43 g Mass of crucible and hydrate = 29.24 g Mass of Crucible an...

Q: Complete the following table: Ion Formula Ion Formula Compound Formula Al3+ NO2-   Mg2+ SO32-...

A: See complete table below.

Q: Virtual graduate student Sherry Molestonecraft is assigned to help you carry out the standardization...

A: 1.30 grams of solid KHP has a molar mass of 204.2gmol isdissolved in 50 mL of water (In an Erlenmeye...

Q: Sulfur dioxlde and oxygen react to form sulfur trloxide during one of the key steps In sulfuric acld...

A: SO2 reacts with O2 to form SO3 as per the equation 2SO2(g) + O2(g) <-----> 2SO3(g) Given , Ini...

Q: 6. A75ml of H2SO, solution requires 27ml of 0.2M Al(OH), to reach endpoint. Calculate the molar conc...

A: 6. Given information,          3 H2SO4 + 2 Al(OH)3  → Al2(SO4)3 + 6H2O 75 ml of H2SO4 solution requi...

Q: What is the pH of a 0.820 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A: The pH of the solution is equal to the negative logarithm of hydronium ion while pOH of the solution...

Q: A sample of krypton gas occupies a volume of 6.80 L at 65.0°C and 390. torr. If the volume of the ga...

A: Given  Initial Pressure (P1)  =390 torr Initial Temperature (T1)  = 65 ℃                            ...

Q: Calculate the pH of the solution made by adding 0.50 mol of HOBr and 0.30 mol of KOBr to 1.00 L of w...

A: Given,  Moles of HOBr = 0.50 moles Moles of KOBr = 0.30 moles Volume of water = 1.00 L Ka for HOBr =...

Q: What is the pH of a 0.350 M solution of HF (Ka = 6.8 × 10⁻⁴)?

A: To calculate the pH of the solution of a  0.350 M solution of HF (Ka = 6.8 × 10⁻⁴).

Q: The Ka expression for the H,PO,/HPO;- buffer is given by the equation Ionic strength (µ, M) 0.005 0....

A: The Ka for the H2PO4-/HPO42- buffer is given by the equation: What is the pH of a 3:4 mixture of ...

Q: A graduated cylinder contains 63 mL of water at 20 °C. A sample of zinc with a mass of 45.00 g was a...

A: Graduated cylinder has 63 ml of water. Sample of zinc has mass = 45 g When zinc is added to cylinder...

Q: Draw and name carbon chain isomer of hexane

A: Hexane has five isomers:

Q: Which compound will give a positive Molish test? galactose maltose maltose and cellulose ma...

A: Molish test is a test that is used to check the presence of carbohydrates in the given compound. Whe...

Q: Identify if the following pair of chemical structures are Functional group isomers Isomers that do ...

A: Compounds having same molecular formula but different functional groups attached are called function...

Q: H.W:- 1-Show by calculations how could you prepare the following solutions: a) 750 mL,of 0.172 FK,Cr...

A: We'll answer the three sub parts of first question, since exact one wasn't specified. Please resubmi...

Q: What is the pH of a 0.660 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: The pH will be 11.56.

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.