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?
1923221
Questions Asked
3,689
Active Tutors
1446060
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Adler believed that your birth order determines, to a large extent, your personality. He stated that your traits reflect, somehow, how you have achieved
What is another way to say ". It is important to ensure that the youth understand what the study involves, what their participation entails
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
Provide five (5) reasons why working from a person centred, strengths-based positive framework, and providing positive lifestyle strategies can reduce
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,