A solution of potassium chromate is prepared at ph 772
Chromic acid is a diprotic acid H2CrO4 with Ka1 = 0.18 and Ka2 = 3.2 x 10-7. A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
Expected delivery within 24 Hours
Carboxylic acids and phenols can be separated by chemically active extraction if the pH of the aqueous layer is properly chosen. Phenols are sufficiently acidic to be extracted into aqueous sodium hydroxide
Rotational and stray-lossesat full load are 5% of the output power. Calculate the power transferred across the air gap, the rotor copper loss at full load,and the electromagnetic torque at full nload innewton-meters.
Calculate the future value of the investment. You must use the advertised interest rate, the number of compounding periods per year, and the time the funds will be invested.
What is the phase difference in a circuit with 100V,drawing 0.5 amps, consuming 50 Watts
A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
A dentist uses a mirror to examine a tooth. The tooth is 1.01 cm in front of the mirror, and the image is formed 10.9 cm behind the mirror. Determine the mirror's radius of curvature
A positive-sequence balanced three-phase wye-connected source witha phase voltage of 120 V rms supplies power to a balanced wye-connected load. The per phase load impedence is 40 + 10JΩ.
A doubly charged helium atom whose mass is 6.6 10-27 kg is accelerated by a voltage of 2500 V. What is its period of revolution
A firm has 160,000 shares of stock outstanding, sales of $1.94 million, net income of $126,400, a price-earnings ratio of 18.7, and a book value per share of $7.92. What is the market-to-book ratio?
1957323
Questions Asked
3,689
Active Tutors
1441462
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
When children are able to determine that the same amount of liquid is in two different sized containers, they have mastered
What is one specific way in which behavior modification techniques might be used in this field? What would be the end goal when using these techniques?
The range of tasks that are too difficult for the child to master alone but that can be learned with the guidance and assistance of adults
My name is Lisette (preferred) and I am located in Augusta, GA. I am majoring in Psychology (BS) with the Life Sciences option, I currently am a manager
Analyze the factors that contribute to employee motivation, satisfaction and engagement. Discuss how employee stress and low motivation can be influenced
Problem: Identify and explain the main ethical challenges faced by Iverem.
Problem: This video talked about personal bias and outdated facts that confuse the general population.