A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 53.9 m/s^2. The acceleration period lasts for time 6.00 s until the fuel is exhausted. After that, the rocket is in free fall.
How many moles are in 0.162 L of a 1.94 M solution of potassium chloride (74.55 g/mol)?
QUESTIONSBefore spectroscopy was invented, Korner’s absolute method was used to determine whether a disubstituted benzene derivative was the ortho, meta, or para isomer. Korner’s method involves adding a third group (often a nitro group) and determining how many isomers are formed. A turn-of-the-century chemist isolated an aromatic compound of molecular formula C6H4Br2. He carefully nitrated […]
A flask contains 0.160 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
First year biology course. Section on genomes and nucleic acid. I am asked to: Identify the regions of DNA that can be used by proteins to recognize specific DNA sequences.
can you get fundamentals of nursing exam 1,2 and 3 and then the test bank?
What is the % yield of of a reaction in which 42.00g of tungsten(VI)oxide (WO3) reacts with excess hydrogen gas to produce metalic tungsten and 2.40mL of water. (assume the density of water is 1.00g/mL)
the anesthetic procaine hydrochloride is often used to deaden pain during dental surgery. the compound is packaged as a 10.% solution (by mass; d= 1.0 g/mL) in water. IF your dentist injects 0.50 mL of the solution, what mass of procaine hydrochloride (in milligrams) is injected?
At the instant the traffic light turns green, a car that hasbeen waiting at an intersection starts ahead with a constantacceleration of 3.20./s^2. At the same instant a truck, travelingwith a constant speed of 20.0m/s, overtakes and apsses the car. a)how far beyond its starting point does the car overtake the truck?b) how fast is […]
What is the difference between a heat engine and a refrigerator ?
