Apparent percent dissociation
A 0.0490 molal aqueous NaBr solution freezes at -0.173°C. What is its apparent percent dissociation in this solution? Kf = 1.86°C/m for water.
NaBr ® Na+ + Br-
89.8%
84.2%
96.4%
77.0%
68.9%
Expected delivery within 24 Hours
Although the buoy normally floats on the surface, at certain times the water depth increases so that the buoy is completely immersed as illustrated.
A 55.0- mL sample of this glucose solution was diluted to 0.500. How many grams of glucose are in 100. of the final solution?
A hot tub is filled with 460 gallons of water, which has a density of 1.0 . What is the volume of water in the tub, in liters? What is the mass, in kilograms, of water it contains?How many kilocalories are needed to heat the water from 63 to 108?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
A standard steel specimen of 13 mm diameter elongated 22 mm when it was subjected to a tensile force of 29.5 kN if the specimen has a length of 200 mm and that force applied within elastic range. what is the elastic modulus of elasticity ?
Suppose the FCC allocates 300 kHz channels for a high quality video conference service. A service provider decides that this service requires 720 kbps (not including overhead and error control) for each channel.Specify a modulation format (other
If a raindrop weighs 60. mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 2.6 h?
What is the density of a block of marble that occupies 350 cm3 and has a mass of 660 g?
1942242
Questions Asked
3,689
Active Tutors
1435560
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: Which assessment finding indicates to the nurse that an older adult client is at risk at developing an infection?
Beatrice is a 35-year-old client who has been experiencing lighter periods for the past few months and even missed a period of 1 month.
If the Chief Complaint (CC): The patient reported "a scaly, circumscribed, erythematous lesion on her trunk with a central clearing area".
Identify and discuss potential diversity in the group that you anticipate teaching. (Diversity can include multiculturalism, age, gender, ethnicity, socioeconom
Identify a specific health outcome or public health concern within a defined population, where health behaviour(s) plays an important role
While evaluating a 8 year old patient in your clinic for a sick visit, you auscultate crackles in the poster left lover lobe, have the patient cough
The facility may struggle with providing proper hygiene for the patients or residents, offer social interactions with others, and provide timely medical care.