Calculate the percent of a strontium sample left
Calculate the percent of a strontium sample left after 100 years. The half-life of strontium-90 is 28.1 years.
Expected delivery within 24 Hours
oleic acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
What is the half-life of a compound if 87 percent of a given sample of the compound decomposes in 65 min? Assume first-order kinetics.
3.60 g of liquid methanol, CH3OH, is placed in an empty 20.0 L container at 45.0°C. If the volume of the container is compressed to 1.40 L at 45.0°C, how many grams of vapor are present?
Gas cylinder a has a volume of 48.2L and contains N2(g) at 8.35 atm at 25 degrees C. Gas cylinder b, of unknown volume, contains He(g) at 9.50 atm and 25 degrees C.
Calculate the pH at each point indicated when 100 mL of .100 M HF is titrated with .200 M KOH: a) before addition of KOH b) after .15 mL KOH c)after addition of 50mL KOH d) after addition of 75 mL KOH.
In the titration of 50.0 mL of 1.0 M methylamine, CH3NH2 (Kb = 4.4 10-4), with 0.50 M HCl, calculate the pH under the following conditions.
A fluorinated organic gas in a cylinder is compressed from an initial volume of 960 mL at 158 Pa to 478 mL at the same temperature. What is the final pressure? Answer in units of Pa.
In an experiment, 201 mL of wet H2 is collected over water at 27 °C and a barometric pressure of 733 torr. The vapor pressure of water at 27 °C is 26.74 torr.
1954785
Questions Asked
3,689
Active Tutors
1436875
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A new patient arrives at the office for treatment for depression. The patient reports taking simvastatin (Zocor) and lisinopril (Zestril).
The renewed emphasis on health equity and quality improvement reflects a growing awareness of persistent disparities in healthcare outcomes
A 14-year-old patient has nonspecific reports of pain in their legs. The physical examination is unremarkable. Laboratory results are within normal
some populations struggle to have reliable transportation in rural areas and are unable to receive medications for serious health conditions.
psychiatric note, chief complaint, current Meds, HPI, formulation, recommendation treatment plan for a 50 years old MALE with diagnosis of Alcohol use disorder,
Question: Which of the following would require communication with currently enrolled subjects? Need Assignment Help?
Question: Which principle emphasizes promoting the well-being of clients?