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When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Pb(OH)42-(aq) will be- BrO3-(aq) + Pb(OH)42-(aq) --> Br-(aq) + PbO2(s)
How many kJ of heat are needed to raise the temperature of 2kg of water from 29 degrees C
Consider the following heterogeneous equilibrium: CCl4(g) ñ C(s) + 2Cl2(g) . Kp = 0.80 atm for this reaction at some elevated temperature. Calculate the initial partial pressure of CCl4(g)
a cyclist is moving around a curved and banked path at a constant speed of 16 mph. the bicycle and rider have a
When a student cleans their dorm room, the entropy of the system must decrease. How is this NOT a violation of the second law of thermodynamics?
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
Given that an atom of a semiconductor has a diameter of 2.45 , what is the maximum number of moles that fit in the channel of a processor chip that is 80.0 long, 84.2 , wide and 435 thick? Assume that the atoms stack in a simple cubic arrangement.
A microbiologist is preparing a medium on which to culture E. coli bacteria. She buffers the medium at pH 7.00 to minimize the effect of acid-producing fermentation.
considering this given equation as 2no o2 --gt 2no2 this is believed to occur by the mechanism 2no--gt n2o2
When a piece of metal is irradiated with UV radiation (wavelength = 162 nm), electrons are ejected with a kinetic energy of 5.96*10^-19 J. What is the work function of the metal? (in joules)
The fuel used in many disposable lighters is liquid butane, C4H10. How many carbon atoms are in 2.00 g of butane
What is the value of the rate constant for the reaction? How much time will take the consentration to drop to one tenth of its initial value?
Explain which of the following aqueous solutions has the strongest ion-dipole attractions:0.3 M Na3PO4, 0.1 M NiF2,0.2 M Rb2CO3, 0.01 M Sr(OH)2 , 0.03 M ScBr3.
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