Determine the number of bromine molecules
A flask contains 0.120 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
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The airspeed of an aeroplane is measured with a Pitot tube. The plane is flying at an altitude of 10000m, and the Pitot tube measures a gauge pressure of p = 10kPa. What is the airspeed of the plane?
A fuel oil is composed of C10H22 and C12H26 in an unknown ratio (no other components are in the fuel oil). When the fuel oil is burned with 20% excess air the exhaust is tested and the ratio of water to CO2 is found to be 1.088. Please note that t
In order to measure the velocity of a rifle a student fires it horizontally at target that is 100 m away. When the bullet hits the target it has dropped a vertical distance of 5.00cm. a) what is the muzzle velocity of the bullet?
Why the Circuit Power factor (Cos θ) Decreases, when Inductance (L) or inductive reactance (XL) increases, In inductive circuit?
If the velocities of individual neutrons are known to within 2% of this value, what is the uncertainty position of one of them?
The first line of the Balmer series occurs at a wavelength of 656.3 nm. What is the energy difference between the two energy levels involved in the emission that results in this spectral line?
What is the concentration of ammonium molibdate that must be used in iodine clock reaction?
Two geological field teams are working in a remote area. A gps tracker at their base camp show the location of the first team 38km away, 19 degrees north of west, and the second team as 29 km away, 35 degrees east of north. what does the GPS give
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