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Br2 and ICl have similar molecular weights which compund has a higher boiling point specifically expalin your answer
Using the balanced equation: 2NaCl(s)+ 1H2SO4(aq)= 2HCl(aq)+1Na2SO4(aq) a. If 20. G of NaCl are used, and only 5.6 g of HCl are isolated, what is the percent yield of HCl? b. If only 5.6 g of HCl ar
From the understanding of colligative properties, how would I design an experiment to measure the freezing point of a material which freezed at -2'c using the same apparatus used in the laboratory a
A Hall probe uses the Hall effect to measure the size of magnetic fields - it does this by measuring the potential difference across the electric field created by the displacement of charge
A car of mass M = 900kg traveling at 50.0km/hour enters a banked turn covered with ice. What is the radius r of the turn
What are the acidic pKa values of the respective hydroxyl products? Look up the structures on the internet or use the UF library online e-journals.
what would be the effect on my calculated molecular weight of p-dichlorobenzene if my lab partner left the stopper off of the apparatus while I was weighing the solid p-chlorobenzene. Explain in de
An electric motor rotating a workshop grinding wheel at a rate of 9.20x101 rev/min is switched off. How long does it take for the grinding wheel to stop
The carbon atom model has an additional rotational axis of symmetry that is NOT threefold. Use an arrow to show the location of one of these in a figure of the carbon atom model.
A wheel of radius 1.6m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 2.3m/s2 , what is the point's tangential speed
What geometric figure is represented by these imaginary lines and what is the approximate angle between all possible pairs of covalent bonds in the model
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
A large punch bowl holds 3.90kg of lemonade (which is essentially water) at 24.0?C. A 5.80×10-2-kg ice cube at -10.0?C is placed in the lemonade. What is the amount of ice (if any) remaining
discrete inquires at a company situated on the lake and employee confesses to you that they have been dumping 89 g/min for years but that the dumping has now stopped. If lake has a residence time of
In a series RCL circuit the dissipated power drops by a factor of 8.0 when the frequency of the generator is changed from the resonant frequency to a nonresonant frequency
A trapeze artist performs an aerial maneuver. While in a tucked position, what is her rotational speed
In the following conditions calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of p
A glass window 0.45cm thick measures 90cm by 35cm . If the inside and outside temperatures differ by 18?, By what factor is the rate of heat transfer reduced
The tangential speed of a particle on a rotating wheel is 3.5m/s. how long will the particle take to make one revolution
The vapor pressure of water at 45.0 degrees celcius is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature
A 89.3-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.53 rad/s. Find the angular velocity of the platform with its load
The reaction is first-order in N2O5, with the specific rate constant 6.08 x 10-4/s. Calculate the reaction rate at these conditions. a. [N2O5] = 0.200 mol/L b. [N2O5] = 0.319 mol/L
You measure the length of a distant car to be subtended by an angular distance of 1.0 degrees. approximately how far away is the car
A vertical spring has one end attached to the ceiling and a 2.50 kg weight attached to the other one. find how fast the weight is moving
Compute the wavefunction and the probability to tunnel, for a proton in the potential: V(x)=0, when x< -0.20 nm, and x>0.00 nm, and V(x)=2.0*10-19 J otherwise.