Calculate the atomic mass of element z
Element Z has two natural isotopes: Z-79 (78.918 amu) and Z-81 (80.916 amu). Calculate the atomic mass of element Z given the abundance of Z-81 is 49.31%.
Expected delivery within 24 Hours
What is the amplitude of the temperature fluctuations produced by a sound of intensity, 10 W/m^2, in air at 20 degrees C and std atmospheric pressure?
How does the unconditioned response differ from the conditioned response? Describe a research scenario, and give an example of each (an unconditioned response, and a conditioned response).
A 3.40 kg steel ball strikes a wall with a speed of 9.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall
A planet with mass 5.98 × 1024 kg orbits a star with mass 1.99 × 1030 kg. Determine the kinetic and potential energy at the aphelion.
A 8.65-L container holds a mixture of two gases at 31 °C. The partial pressures of gas A and gas B, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in volume or temperature, what will the total press
A diver stands at the end of of a massless diving board. (a) if the mass of the diver is 134kg and the board is 9m long, what is the torque due to gravity on the diving board with a pivot point at the fixed end of the board?
How did European (and later the United States) ideas about land ownership conflict with the Native American ideas about the use of the land? Must be in Essay format at least 5 paragraphs long.
what is the molar concentration of chloride ions after 225 ml of 0.625 MKCL are mixed with 615 mlof 0.385M MgCl2? The final volume of the solution is 840ml
1923990
Questions Asked
3,689
Active Tutors
1412687
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Describe your thoughts regarding the prevalence of medical and diagnostic errors in health care. Discuss what actions you will take to avoid medical
In nursing, cultural competence is essential for providing respectful and effective care to patients from diverse backgrounds.
In hospitalized adult patients, how does fostering a positive patient safety culture compared to no specific intervention targeting safety culture,
Dr. Barton provided service for Donna Sinne who has actinic keratosis on her lip. The treatment provided entails 3 phototherapy exposures
Problem: A 62-year old walks into the emergency room early in the morning. Nurse: what brings you to the ER today.
The Advanced Practice Registered Nurse (APRN) is reviewing glucose trends for a patient with type-2 diabetes mellitus who is currently taking metformin
The patient is a 65-year-old female with known coronary artery disease. She complains of some pain with walking. She exercised for 5 minutes