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Explain why the water molecule is bound when some water molecules bound to a protein can be observed by X-ray crystallography in terms of DH and DS.
A student makes 500.0 ml of Ca(NO3) 2 solution by dissolving 49.36 grams of Ca(NO3)2 in distilled water by using a volumetric flask. The student then pipets 10.00 ml of the Ca(NO3)2 solution made in
At 4 degrees Celsius a pitcher containing 0.75ml of water is removed from the refrigerator. Determine the numbers of kilojoules are required to warm the water to a room temperature of 27 degrees Ce
The diffraction grating 20.0 mm wide consists of 4800 rulings. The Light of wavelength 585 nm is incident perpendicularly on the grating. i) Determine the biggest value of at which a maximum appears
Calculate the factors by which the concentrations of the following species have to be multiplied to convert them to concentrations in mg/L as CaCO3: CaO, HCl, Na2CO3, Na, Ca(HCO3)2.
Draw the curve determine rectangular coordinate equation by eliminating parameter x=2sint y=2cost 0 less than or equal to t less than or equal 2 pi.
Recognize the following salts as likely to be basic (B), acidic (A) or neutral (N) salts with respect to changing the pH of the solution when dissolved in DI water.
An inductor of 6.20 mH is one of the elements in a simple RLC series circuit. If this circuit is joined to a 1.60 kHz sinusoidal source with an rms voltage of 822.0 V, an rms current of 2.50 A lags
This method is capable of detecting magnetic fields as weak as 1.0 x 10-15 T. Model the neuron as a long wire carrying a current and determine the current it should carry to generate a field of this
0.0350 of potassium sulphate is transferred and weighted to 250 ml volumetric flask , which is then diluted to the mark with distilled water, assume density is 1.000g/ml, the potassium sulphate puri
When the loop is positioned in a uniform magnetic field of magnitude 0.400 T, determine the maximum torque which can act on it? The resistivity of copper is 1.7 x 10-8 m.
Calculate the concentration of the solute within the solution in mole percent if at 25 degrees centigrade the vapor above an aqueous solution contains the 19.5 mg water per liter.
The atomic particle is projected at 0.709 c in the similar direction as the spaceship’s velocity with respect to an observer within the vehicle. Determine the speed of the projectile as observ
Write complex number in trignometric form where it is between 0 and 2pi. Write three other possible trignometric forms for number.
A ball of 0.30 kg is thrown straight up into the air having an initial speed of 19 m/s. i) Determine the momentum of the ball at the given locations. ii) Half-way to the maximum height.
A rifle having a weight of 35 N fires a 3.0 g bullet with a speed of 240 m/s. When a 750 N man holds the rifle firmly against his shoulder, determine the recoil speed of the man and rifle.
Determine the magnetic field outside the cable when a current of 2A is flowing to and from the device?
When an astronaut on the outer edge is to experience the centripetal acceleration g/2, determine what must be the station's angular velocity?
The count in the culture of bacteria was 400 after 2 hours and 25,600 after 6 hours. Find relative rate of growth of bacteria population? State the answer as a percentage.
A particle of charge q and mass m is situated at a position in space where the electric field consists of a magnitude E. There are no other forces acting on the particle. Determine the magnitude of
Determine the smallest angle of incidence with respect to the top mirror such that the laser beam (i) strikes just one of the mirrors and (ii) strikes each mirror just once.
Write down an equation for the reaction and, assuming that all the Mg was converted to the magnesium oxide, determine the mass of the magnesium originally present in crucible?
The two electrons are placed on an axis in such a way that q1 is at (0,1),q2 is at (0,-1) and proton q3 is positioned at (-1,0). Determine the electric field due to the three charges at (1,0)?
A lens having a focal length of 20 cm is positioned 45 cm in front of the lens with a focal length of 5.0 cm. Determine how far from the second lens is the final image of an object infinitely far fr
Determine the numbers of grams of water can be heated from 25.0 degrees Celsius to 35.0 degrees Celsius by the heat released from 85.0g of iron that cools from 85.0 degrees Celsius to 30.0 degrees