What is the mass (in kg) of that piece of galena
A piece of galena has a volume of 3.9 cm3. If the density of galena is 7.5 g/cm3, what is the mass (in kg) of that piece of galena?
Expected delivery within 24 Hours
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
For each of the following sets of pressure/volume data, calculate the new volume of the gas after the pressure change is made. Assume that the temperature and the amount of gas remain the same.
The molar heat of fusion of aluminum metal is 10.79 kJ/mol, whereas its heat of vaporization is 293.4 kJ/mol. What quantity of heat would be required to vaporize 1.68 g of aluminum at its normal boiling point?
The donor concentration in a silicon sample at 300K is ND = 1.2 x 1015 cm-3. 1 x 1016 cm-3 acceptor atoms are added to form a compensated p-type semiconductor so that the Fermi level is 0.26 eV above the valence band edge. (a) Determine free
Solid aluminum reacts with aq H2 SO4 to form H2 gas and aluminum sulfate. when a sample of Al reacts, 425 mL of H2 gas is produced at 24 degree celsius at a press of 744 mmHg. How many grams of Al reacted?
A small, 0.6-lb collar D can slide on portion AB of a rod which is bent as shown. Knowing that r = 8 in and that the rod rotates about the vertical AC at a constant rate of 10 rad/s.
What is the literature Ksp value for potassium hydrogen tartrate at different temperatures?
Determine the probability that an energy level is empty of an electron if the state is (a) below the Fermi level by 2kT and (b) above the Fermi level by 3kT.Hint: Probability of a state not being occupied by electron is = 1 - f(E)
1940531
Questions Asked
3,689
Active Tutors
1434962
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.