A 500ml buffer solutin is 0150 m in hno2 and 0175 m in kno2
A 500ml Buffer solutin is 0.150 M in HNO2 and 0.175 M in KNO2. The Ka for HNO2 is 4.6*10^-4. What is the inital pH of this buffer? What is the pH of the buffer in the question above if 0.0049 moles of HCl are added assuming no change in volume?
Expected delivery within 24 Hours
Sodium light of wavelength 589nm falls on a diffraction grating and its first-order peak on a screen 60.0cm away falls 3.32cm from the central peak. How many lines per cm does the grating have
Styrene is produced by catalytic dehydrogenation of ethylbenzene at high temperature in the presence of superheated steam. A.) Given the following data, what is the delta Hrxn, delta Grxn and delta Srxn at 298 K
A flexure test is done to determine the modulus of rupture of wood. Given that a=15in, L=34in, and the maximum load P that was applied was 5950lbf, what is the modulus of rupture of wood
assume the pipe diameter is 4-inches, (f = 0.035), Distance from BC is 15-feet, distance DE is 180-feet and z = 60-feet. The elevation of C is 10-feet above the lower water surface.
A 500ml Buffer solutin is 0.150 M in HNO2 and 0.175 M in KNO2. The Ka for HNO2 is 4.6*10^-4. What is the inital pH of this buffer. What is the pH of the buffer in the question above if 0.0049 moles of HCl are added assuming no change in volume
A uniform disk of mass .53kg and radius 11cm is constrained to rotate on an axis about its center. find the KE attained by the system
When composing business messages, how can you communicate with an authentic voice and project your company's image at the same time? [
Which of the following is true for a thermistor with a negative temperature characteristic A) Decreasing temperature produces decreasing resistance in the thermistor. B) Increasing temperature produces decreasing resistance in the thermistor.
Calculate the activity and activity coefficient for ethanol in this solution. c. Calculate ?mixG for a solution that contains 0.12 moles of ethanol and 0.83 moles of chloroform at 35.0 oC.
1941746
Questions Asked
3,689
Active Tutors
1418038
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Upon reflection of my time with Mrs. S.N., a patient afflicted with persistent discomfort and a medical background of diverticulitis,
Basic principles and practices of nutrition Complete the following table for the seven nutrient groups and provide at least two examples
A nurse reports to the DNS that he stuck himself with a clean needle moments ago. Which of the following actions is most appropriate for the DNS to take?
Which of the following is true of decision making? It is dependent on policy and standards of practice.
Problem: I would explain that we are giving very subpar care to our patients from just looking at the numbers.
Which of the following statements summarizes the difference between data gathering and critical thinking?
The DNS is interviewing a nurse for a charge nurse position on evening shift. Which question is the DNS allowed to ask?