Calculate the pH during the titration of 25.00 mL of 0.1000 M HCN(aq) with 0.1000 M KOH(aq) after 5.23 mL of the base have been added. Ka of hydrocyanic acid = 4.9 x 10-10.

Q: garlic, onion, salt, and vinegar as Cleaning Products questions: Are the following ingredients (ga...

A: Household cleaning materials are substances used to clean household soft materials without using any...

Q: Consider the hypothetical reaction, which has an equilibrium constant (Kp) of 16.1 when the reaction...

A:

Q: What type of defense is occurring when mucin flows off the epithelium and carries pathogens with it?

A: In vertebrates, the interior epithelial surfaces are also covered with a mucus layer that protects t...

Q: Boil 50 mL of distilled water in the Erlenmeyer flask with a small flame and take the temperature. T...

A: Basically boiling point is the temperature at which the vapour pressure of the liquid is the same as...

Q: Which of the following compounds reacts faster in an elimination reaction with KOH? Also provide the...

A: Alkyl halided given E2 elimination reaction with KOH. In the E2 elimination reaction, the removal of...

Q: A sample of Nitrogen gas occupies a volume of 31.9 ml at 86.8°C. What temperature in °C will it need...

A: Please find your solution below : Charle's law states that when the pressure is held constant, the v...

Q: he auerage ura capa city fa4-yer-ald is obaut 3coL. How nicnly noles uf gGs (car) do he ungs of an A...

A: Solve the problem using given information and plug values in Ideal gas law.

Q: Mechanism 1. Propose a mechanism that accounts for the transformation below. TSOH, EIOH EtO mechanis...

A: This reaction proceeds through SN2 mechanism.

Q: Give the importance of acid-base balance in the body.

A: Our body needs the right balance of acidic and basic (alkaline) compounds to function properly. This...

Q: Draw the MOST stable conformational isomer of butane's Newman projection and briefly EXPLAIN its sta...

A: Please find your solution below : Conformations are the isomers that are formed due to slight change...

Q: Question: Step1 A4+ + B2+→ A3+ + B3+ Step2 A4+ + B3+→ A3+ + B4+ Step3 C+ + B4+→ C3+ + B2+ Pred...

A: Catalyst can be defined as the substance that increases rate of reaction without getting consumed in...

Q: During an assay of paracetamol by UV an analyst prepares a series of calibration solutions containin...

A: Mass of paracetamol = 140.1mg Volume of solution  =200mL Concentration = 140.1mg/200mL              ...

Q: How many moles of potassium cyanide, KCN, are present in a sample containing 67.1 grams of the solid...

A: Given, Mass of potassium cyanide (KCN) = 67.1 g Moles of potassium cyanide (KCN) = ? Note:  Molar ma...

Q: Metalloids are located where on the periodic table?     left side     right side     middle     ...

A:

Q: List the (i) metal oxidation state, (ii) d-electron count, and (iii) total electron count for each o...

A: Here we will use neutral method to calculate total electron count in the molecule. We have to consid...

Q: thermometer A sample of quartz, which has a specific heat capacity of 0.730 J'g c, is put into a cal...

A:

Q: In a chemical reaction, the substances present after the chemical change are called reactants.  True...

A: In a chemical reaction Reactants are substances that start a chemical reaction. Products are substan...

Q: In parentheses you will see that the products is not balanced .*first we will have to balance the pr...

A: A question based on mole concept that is to be accomplished.

Q: 1. (a) Draw an energy cycle and use the Standard Enthalpies of combustion values in the table below ...

A:

Q: Ammonia (NH,) gas and oxygen (o,) gas react to form nitrogen (N,) gas and water (H,0) vapor. Suppose...

A:

Q: The standard molar enthalpy formation of ammonia, NH3(g) is -45.92 kJ. 1/2 N2(g) + 3/2 H2(g) ==> NH3...

A:

Q: give the chemical reaction of the given procedure: methyl salicylate + ethanol + 1M HCl -->  ?  +  ...

A: Methyl salicylate reacts with ethanol in presence of acid to form ethyl salicylate which again react...

Q: This is the reaction with Acid-Base indicator. Please explain clearly what the result below means. ...

A: Acid -Base indicator are those compounds which tell whether the substance is acidic or basic in natu...

Q: An aerosol can is at a pressure of 5.7 atm at a temperatue of 83.9 C. It is then cooled to a tempera...

A:

Q: what is the chemical reaction when methyl salicylate is reacted with ferric chloride (FeCl3)?

A: We are required to write the chemical reaction between methyl salicylate and ferric chloride 

Q: Calculation of pH (SHOW CALCULATION FROM THE GRAPH IATTACH GRAPHI 2.Find out pH at equivalent to V1/...

A: Plot of pH vs Volume of NaOH added

Q: In the UV assay of paracetamol you are required to weigh tablet powder “…containing 0.150 g of Parac...

A: Answer : weight of 1 tablet = mass of tablet  /  no. of tablet  = 11.223/20 = 0.56115 g as 1 mg = 0....

Q: Which of the following items is a physical property?     the combustion of gasoline     the corros...

A: Whthe following items is a -       the combustion of gasoline - Chemical property   the corrosive ac...

Q: Imagine an alternate universe where the quantum numbers for the hydrogen-like atom follow different ...

A: The Pauli Exclusion Principle expresses that, in a particle or atom, no two electrons can have a sim...

Q: Which of the following items is a chemical property?     the melting and boiling point of water    ...

A: Given:- Which of the following items is a chemical property?       the melting and boiling point...

Q: dm3 to 10.0dm3 at 500°C. Calculate the work done assuming a. The gas to be ideal a = 5.536 dm3 bar /...

A:

Q: Put some crushed ice in the 400 mL beaker. Allow some of the ice to melt then take the temperature. ...

A:

Q: How would you prepare  x 10 ^2 mL of 0.9 M NaOH solution, starting from 5.01 M stock solution? (give...

A: Given that, M1=5.01 M, V1=? M2=0.9 M , V2= 2×102 ml = 200 ml  then,    

Q: + CrPO, + 4. K;Cr20, + KI + H;PO4 5. K,Cr,O, K,PO, + H20 Cr;(SO,); + Fe,(SO,); + K,SO, + H,0 I2 + Fe...

A:

Q: A: Measurement vessel B: Stopper C: Vent D: Thermometer E: Auxiliary thermometer F: Bath liquid G: C...

A: Pycnometer:   Pycnometer is used  to measure and compute densities or specific gravities of li...

Q: 4. Calculate the expected masses of the products that can be produced if 60 g of each reactant is us...

A:

Q: A 57.4 g sample of glass is put into a calorimeter (see sketch at right) that contains 100.0 g of wa...

A:

Q: if the atoms in water do not change, how is water able to exist as gas, liquid or solid?

A: The water molecules consists of one oxygen atom at the middle and two hydrogen atoms at extreme posi...

Q: Br2

A:

Q: Kristen places 1.02 ml of nitrogen gas at -57.7 °C into an insulated, adjustable flask. 2 hours late...

A:

Q: Complete this table for refrigerant-134a T, °C P, kPa v, m/kg Phase description -8 320 30 0.015 Satu...

A: Introduction :  Refrigerant temperature is likely around 4–5 degree. It does not change with tempera...

Q: How many moles is 219 grams of copper (II) bromide, CuBr2?

A: Given that, mass of CuBr2 = 219 g molar mass of CuBr2= 223.37 g mol-1 moles of CuBr2 =?

Q: What is the concentration of HNO3 if 9.80×10-2 mol are present in 775 mL of the solution?

A: Molarity is one of the ways to express the concentration of solution  We are required to find the co...

Q: An aluminum atom has a mass of 4.48 x 10 g and a small airplane has a mass of 5000. kg. Use this inf...

A:

Q: thermometer -1.°c A sample of polystyrene, which has a specific heat capacity of 1.880 J'g contains ...

A:

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3 (Si,O;),(OH), An a...

A:

Q: Consider the 'H35CI molecule. Assume that the vibrational motion of the molecule can be modeled as a...

A:

Q: Gaseous ethane (CH,CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO2) ...

A: Reaction between ethane and oxygen (Combustion of ethane)                                   2C2H6 (g...

Q: Calculate the number of oxygen atoms in a 110.0 g sample of glucose (C,H1,0). Be sure your answer ha...

A:

Q: A mixture of krypton and argon gas is expanded from a volume of 42.0 L to a volume of 75.0 L, while ...

A:

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.