Find molar ratio of sodium borohydride to fluorenone
Determine the molar ratio of sodium borohydride to 9-fluorenone that you used in the experiment. Why is it necessary to use a greater molar ratio than theoretical?
.102 g of 9-fluorenone.025 g of sodium borohydride
Expected delivery within 24 Hours
What is the theoretical yield for the equation FeCl3+3NaOH=Fe(OH)3+3NaCl
The atomic weight of a newly discovered el- ement is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu. The second isotope has a per- cent abundance of 41.7%. What is the mass of the second isotope?
The light right-angle boom which supports the 400-kg cylinder is supported by three cables and a ball-and-socket joint O attached to the vertical x-y surface. Determine the reactions at O and the cable tensions.
A control system is needed to control a small shopping center parking lot lighting system and the exterior lighting for the building. The design specifications require that the parking lot lighting and the exterior lighting turn on at dusk aut
Calculate the mass of propylene glycol ({rm{C}}_3 {rm{H}}_8 {rm{O}}_2 ) that must be added to 0.340 kg of water to reduce the vapor pressure by 2.86 torr at 40 ^circ ,{rm C} (P_{{rm H}_2{rm O}} at 40 ^circ,{rm C} = 55.3;{rm torr}).
A gaseous mixture of O2 and Kr has a density of 1.184 g/L at 385 torr and 300. K. What is the mole percent O2 in the mixture?
An air-standard dual cycle has a compression ratio of 18 and a cutoff ratio of 1.1. The pressure ratio during constant-volume heat addition process is 1.1
In the other determination, the sample height is 4-5 mm and themelting range is found to 141-145C. Explain the broader meltingpoint range observed for the second sample. The reported melting point for the compound is 143C.
1946884
Questions Asked
3,689
Active Tutors
1430826
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
The dental hygienist uses a handheld syringe to irrigate the posterior molars following a deep debridement of 6 mm pockets.
Question: A client is using a toothpaste with postassium nitrate. What is the role of the potassium nitrate in this toothpaste?
Question: With motivational interviewing, the focus is on: Question options: the client becoming actively involved in making and maintaining human behaviour
A client has type II embrasure spaces throughout his mouth and a fixed bridge between 13-15. What should the dental hygienist recommend
Problem: Funneling and widening of the coronal margins may be an indication of:
A client has decided to have oral piercings inserted today. Which one of the following rinses is effective for aftercare of oral piercings?
A client presents with 32 teeth and the color of the gingiva is pink, and stippled; the gingival papillae and margins are knife -edge and the consistency is fir