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Problem- The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0031 M. Calculate the number of molecules inside the cell, which is 3.5 µm long and 1.4 µm in diameter.
I have no thought how to do this thank you for your help
Buffers are important physiological compounds that resist a change in pH. Calculate the pH of system that is 0.25 M benzoic acid and 0.75 M benzoate if the pKa = 4.2.
Balance the following equations: a) Zn(s)+H2SO4(aq)--->ZnSO4(aq)+H2(g); b)Al(s)+H2SO4(aq)--->Al2(SO4)3(aq)+H2(g); c)K2SO4(aq)+BaCl2(aq)--->BaSO4(s)+KCl(aq); d) CaCO3(s)--->CaO(s)+CO2(g); e)Al2(SO4)3(aq)+KOH(aq)--->Al(OH)3(s)+K2SO4(aq).
Problem- An industrial flow of 12 L/min has a solids concentration of 80 mg/L. A solids removal process extracts 960 mg/min of the solids from the flow without affecting the liquid flow. What is the recovery (in percent)
P and O react to form two different P oxides. The mass % of Pin one of these oxides is 43.64% in the other, it is56.34%. State the empirical formula of each P oxide.
the ph of a calcium containing solution is adjusted by the additionof a few drops 0f 2m koh and titrated with 0.01000m
What is the relationship between the ionization energy of an anion with a 1- charge such as F- and the electron affinity of the neutral atom, F
Problem- An element crystallizes in a face-centered cubic lattice. What would be the length of the edge and density of the unit cell of hydrogen.
A 10.0 ml sample of 0.075 M KOH is titrated with 0.125 M HCIO4 solution. Compute the pH after the subsequent amounts of acid are added. a) 2.50 ml b) 6.00mL c) 12.0Ml
You will start with 500 mg of one of isoamyl acloho to make isoamyl acetate. While the alcohols are liquids, we will measure them by mass directly on the balance, not by volume (i.e. the density of the alcohol will not be used; pretend the alcohol..
What volume of a 6.16E-2 M potassium hydroxide solution is required to neutralize 19.8 mL of a 0.107 M hydroiodic acid solution.
The theoretical energy consumption per kg of aluminum and the current required for the production of 1 metric ton of aluminum per day
calculate the mass in kilograms of 3.99 liters of acetic acid. the density of this substance is 1.05g/mL ?
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