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Problem- The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0045 M. Calculate the number of molecules inside the cell, which is 5.0 ?m long and 1.4 ?m in diameter.
By means of textbook reference solve the reactions given in above problem
Calculate the ?(wavelength) (m) associated with an electron that travels at 50% of the speed of light. (Mass of an electron = 9.11 × 10-28 g)
suppose the pressure inside a pressure cooker reaches 1.3 atm. By using the vapor-pressure table, estimate the temperature at which water will boil in this cooker
For the elementary process N2O5 (g) = NO2(g) + NO3 (g) the activation energy (Ea) and overall Delta E are 154 KJ/mol, and 136 KJ/mol, respectively. What is the activation energy of the reverse reaction.
What is the molarity of a solution in which 4.00 moles of potassium chloride is dissolved in 3.00l of solution
benzene (C6H6) has a characteristic ultraviolet spectrum. Using the molecular orbital theory, account for this uv spectrum.
Determine number of moles of oxygen molecules are in the cylinder and compute the mass of solid C 2 H 3 NaO 2 required mixing with 60.0mL of .125M C 2 H 4 O 2 to form a ph 4.20 buffer?
The heat of vaporization of water in this temperature range is 2.40 kJ/g. The heat capacity of water is 4.184 J/g.K. Answer in grams of water
Determine the pressures of one gram (each) of gaseous H2, He, N2 and Ar, where each sample is contained in a volume of one liter at 0 degrees centigrade. Which sample has the greatest pressure under the conditions stated. Which sample has the leas..
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
Calculate the Z for the fourth ionization of Ti when it requires 425.6 kJ of energy to ionize 0.185 moles of Ti^3+ to Ti^4+ ( The electron being removed is in the outermost valence orbital of Ti^3+ ground state, therefore n = 3)
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HCLO with 0.100 M KOH. The ionization constant for HCIO is 4.0 x 10^-8 a) after addition of 50.0 ml of KOH
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 423 cubic centimeters and the total mass is 4.30kg.
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