Question 15: Which would be the best choice to make a pH 3.7 buffer? Cyanic acid/sodium cyanate (HCNO/NaCNO). The Ka of HCNO is 2.0E-4 Nitrous acid/sodium nitrate (HNO₂/NaNO₂). The Ka of HNO₂ is 4.6E-4 Acetic acid/sodium Acetate (HC₂H3O2/NaC₂H3O₂). The Ka of HC₂H3O2 is 1.8E-5

Q: What is the median of the values 7.79, 8.24, 5.81, 4.97, 1.04, 7.39, and 7.22?

A: Median value can be calculated as:

Q: What volume of hydrogen gas is produced when 93.6 g of iron reacts completely according to the…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: 150decrun

A: Isoelectronic means the number of electrons are the same in 2 or more species. Argon is a noble gas…

Q: For the following reaction, calculate the value of Q. 2A 1B +3C [A] = 0.53 [B] = 0.24 [C] = 0.20

A: Given,

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A: Given the copper metal is at a higher temperature of 100 oC water is at a lower temperature of 15 oC…

Q: What is the equivalent value of T = 50° C in kelvins?We can use Equation (11.9) :T(K) T( C)+ 273 =…

A: The relation between temperature in degree C°C and degree Fahrenheit°F is,  T(K)=T(°C) + 273.15

Q: 3. Elektron bergerak dalam daerah di antara 2 plat paralel dengan kecepatan 1.88 x 107 m/s dan…

A: The objective of the question is to find the magnitude of the magnetic field that will allow an…

Q: (iii) Using the [XeFs] as an example, show that C = E.

A: For proving this, we have to find out its principal axis and apply the Cn operation n times. so that…

Q: Solve for X max of the following co

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Q: After sitting on a shelf for a while, a can of soda at a room temperature (69°F) s placed inside a…

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Q: 81. A 58-year-old man who is a construction worker comes to the office because of a 1-week history…

A: E) water

Q: velocity

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Q: 146C -->   0-1e    +    _______________?

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Q: Ht heat

A: Hydrolysis in the presence of Acidic media (H+ from H3O+) :

Q: What do the superscript and subscript in the notation1940 K represent?

A: The periodic table, also described as the periodic table of elements, is a tabular representation of…

Q: O 2017 Pearson Education, Inc.

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Can you please answer this question and show the steps

A: Protons carry positive charges, electrons carry negative charges and neutrons have neutral particle.…

Q: 40 H + ○

A: The reaction between carboxylate ion and H3O+ is:

Q: use the following data to create a scatter graph with smooth lines and markers to connect and…

A: Given information is,

Q: Rafael tutors chemistry, For each hour that he tutors, he earns 40 dollars. His earnings, E (in…

A:

Q: the heat of combustion of benzoic acid.   based on the data and the graph, what is the drift rates…

A: The initial drift rate (dT/dt)i is the slope of the graph till the (ti,Ti) and the final drift rate…

Q: If    y=B*e(A*x)  then   ln(y)=

A: Mathematical functions are used in physical chemistry to calculate a number of measurements. Natural…

Q: a Table: (This is an example of what your data table should look like.)   Pressure (kPa)…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Q6. Perform this addition to the correct number of significant Q figures: 8.32 + 12.148 +0.02 (a)…

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Q: (b) Give the IUPAC name for the following compounds: () H.C H;C (i) CI CI. H3C (i) но но

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Chlorite is reduced by bromide in acidic solution according to the following balanced equation: C10₂…

A: Chlorite is reduced by bromide in acidic solution according to the following balanced equationTo…

Q: A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the…

A: Given,  Volume of liquid (V)=0.741L Mass of liquid (M)= 523g And density of liquid =M÷V

Q: + e Home ourse.html?courseld=15539865&HepID=676f177415469ec3dc78ff3c8 bf724d9#1 0001 Inbox-Outlook…

A: Gay-Lussac’s law states that the pressure of a fixed amount of gas is directly proportional to the…

Q: If 315 g warer at 6G,9°C loses 9T6o J Of nea what is the Pinal temperanure of the warer?

A:

Q: 10. Convert 52 ps into ms.

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Q: он ] |м %3D н- CN¯]=

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Q: R= 0.241 kPa * km^-1 convert R to ? kJ*m^4

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Q: An electric current of 26.20 A flows for 246. milliseconds. Calculate the amount of electric charge…

A: Given Current (i) = 26.20 A Time (t) = 246 milliseconds              t = 246× 10-3 seconds Amount of…

Q: Time(s) [X3] (mole/L) 0 0.600 200 0.458 400 0.362 600 0.281 800 0.204 1000 0.175 1200…

A: Given data: The values of concentration of X3 mole/L is given at different time intervals, The…

Q: average body temperature of a red-tailed hawk is 41.1C what is the temperature in K

A: Temperature in kelvin= 273.15 + Temperature in Celsius

Q: 3.9 X 1014 sec = years

A:

Q: Waste same waste container as waste hexane (C6H14). dichloromethane (CH₂Cl2) should be put into the

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Q: When plotted correctly, match the following terms to the variables in an equation of a straight…

A: Activation energy is amount of energy required to activate the reactant molecules from ground state.

Q: AHrxn AS rxn AGrxn AS universe >0 0 low T, 0 high T

A: For the Given reaction, 2NH3(g) + 3 N2O → 4N2(g) + 3 H2O(g)

Q: COOH NO2 Br

A:

Q: An electric current of 25.80 A transports 0.30 kC of charge. Calculate the time this took. Be sure…

A:

Q: 45. One of the most desirable of the old British sports cars was the beautiful Triumph Vitesse…

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Q: Which of the following would be the major product of the reaction sequence shown below? SOCI2…

A: A)    SOCl2 is best reagent for converting Carboxylic Acid into acid chloride , where Pyridine…

Q: Vol 6 No 6 S5 what is the issue number ?

A: Issues number is given below.

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.