What is the concentration of ammonium ion
a) What is the concentration of Ba(OH)2 in aBa(OH)2 solution if the pH is 8.25?
b) What is the concentration of ammonium ion that must be in a0.15 M NH3 solution to produce a buffer of pH =8.0?
Expected delivery within 24 Hours
Estimate the machining time that will be required to finish a vertical flat surface of length 100 mm and depth 20 mm by an 8 teeth HSS end mill cutter of 32 mm diameter and 60 mm length in a milling machine.
A 1kg fluid is compressed reversibly according to a law PV=0.25, where p is in bar and v is in m^3/kg. The final volume is 1/4 of the initial volume. Calculate the work done on the fluid.
A 200-mL volume of NaOH solution was addedto 400mL of a 2.00 M HNO2 solution. The pH of themixed solution was 1.5 units greater than that of the original acidsolution. Calculate the molarity of the NaOH solution.
A bartender slides a beer mug at 1.50m/s towards a customer at the end of a frictionless bar that is 1.20m tall. The customer makes a grab for the mug and misses and the mug sails off to the end of the bar. (a) how far away from the end of the bar
What is the concentration of Ba(OH)2 in aBa(OH)2 solution if the pH is 8.25? What is the concentration of ammonium ion that must be in a0.15 M NH3 solution to produce a buffer of pH =8.0?
A wave travels along a string at a speed of 280 m/s. What will be the speed if the string is replaced by one made of the same material and under the same tension but having twice the radius?
Magnesium sulfate, MgSO4, is added to 469 mL of 0.040 Msodium hydroxide, NaOH, until a precipitate just forms. How many grams of magnesium sulfate were added?
An astronaut must journey to a distant planet which is 210 light years from Earth. What speed will be necessary if the astronaut wishes to age only 13 years during the round trip? Assume that the trip is made at constant speed and give your answer
The estimate of the population proportions is to be within plus or minus .10, with a 95 percent level of confidence. The best estimate of the population proportion is .15. How large a sample is required?
1935447
Questions Asked
3,689
Active Tutors
1448649
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult