Explain what is the ka of hy

Assignment Help Chemistry
Reference no: EM13227764

A 0.00445 mol sample of a weak acid, HY, is dissolved in enough water to form 0.0976 L of solution. If the pH of the solution is 4.02, what is the Ka of HY? Use E notation with 3 significant figures.

Reference no: EM13227764

Questions Cloud

What is the minimum width of the displayed letter strokes : you decide to make the font size large enough so that a person with 20/40 vision will be able to read the letters displayed on the screen with your slides with 95% accuracy from 20 m away. What is the minimum width of the displayed letter strokes ..
Explain what is the concentration of h3o in the urine sample : The electrode of a pH meter is placed in a sample of urine and a reading of 7.9 is obtained. Is the sample acidic basic, or neutral? What is the concentration of H3O+ in the urine sample?
Key aspects of the firms environment : Stage one-the analysis that includes systematic identification and consideration of the key aspects of the firm's environment and stage two-the synthesis of the key aspects into an understanding of the strategic opportunities and threats..
Calculate the unit length capacitance of the cable : The cylindrical coaxial cable with the cross section shown below, has inner and outer radii of 5mm and 15mm respectively. The dielectric parameters are; er=2, signma=5*10^(-10) S/m and Ur=1.
Explain what is the ka of hy : A 0.00445 mol sample of a weak acid, HY, is dissolved in enough water to form 0.0976 L of solution. If the pH of the solution is 4.02, what is the Ka of HY? Use E notation with 3 significant figures.
Find the magnetic field and inductance : A 1000 turns wire are tighly wound on a toroid with a rectangular cross section, the heigh of toroid is 0.5 cm . The inner and outer radii of 2 cm and 3cm respectively. The current in the wire I=100 mA, Ur = 4000. N= 1000, Find H,B,phi and inducta..
What are the maximum and minimum cycle times : The line will operate for 480 minutes per day. a. What are the maximum and minimum cycle times? b. What output rate will be achieved by each of those cycle times?
Explain the solubility of common compounds in water : Experimentally observed facts have led to the establishment of rules used to predict the solubility of common compounds in water. The rules can be stated as follows: Compounds that contain , , , and are always soluble with no particular exceptions..
What is the instantaneous frequency of the fm signal : A hybrid communication system uses both AMSC and FM. The information signal a(t) is first AMSC modulated with the subcarrier frequency 1000 Hz. Then it passes through an FM modulator with the carrier frequency 10Mhz.

Reviews

Write a Review

Chemistry Questions & Answers

  State potassium phosphate buffer solution

As a technician in a large pharmaceutical research firm, you need to produce 450. of 1.00 potassium phosphate buffer solution of = 7.38. The of is 7.21. You have the following supplies: 2.00 of 1.00 stock solution

  Calculate the hydrogen ion concentration

Calculate the hydrogen Ion concentration, in moles per liter, for solutions with each of the following pH values.

  Calculate the final temperature of the mixture

A 17.0-g sample of ice at -19.0°C is mixed with 101.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.

  Explain reaction of sodium acetylide of dibromododecane

Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide with 1,12-dibromododecane. On treatment of compound A with sodium amide

  Explain the concentration of sugar in human blood

The concentration of sugar (glucose, C6H12O6) in human blood ranges from about 80 mg/100 mL before meals to 120 mg/100 mL after eating.

  Define one mole of an ideal gas from a starting volume

How much work is done reversibly compressing one mole of an ideal gas from a starting volume of 1L to a final volume of 250mL at a constant temperature of 293K? What is the change in entropy?

  Depict the chemical equation for all the reactions

Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates b) Rank the primary halide in order of increasing reactivity toward SN2

  Solving equilibrium problem to calculate the ph

Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2.

  State determine the quantity of stock

Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.

  How many grams of methylamine must be combusted

how many grams of methylamine must be combusted to raise the temperature of 431 g of water from 11.0 degrees Ce to 41.0 degrees C?

  What is the final volume

A 98 L sample of dry air cools from 138°C to -30.°C while the pressure is maintained at 2.85 atm. What is the final volume?

  Explain how much hexanes would be required to remove

What weight of A would be removed from the same solution by successive extraction with four portions of 25mL of hexanes? How much hexanes would be required to remove 98.5% of A in single extraction?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd