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A biological cell is immersed in a 60. mM solution of NaCl at37°C. The cell's membrane is permeable only to Na+ions. When the system reaches equilibrium, a potential differenceof 82.9 mV is measured between the inside and the outside of thecell, where the inside has the higher (more positive) potential.Calculate [Na+] inside the cell, assuming the amount ofNa+ ions transferred is negligible compared to the totalamount of Na+ ions in the solution.
A voltaic cell is constructed with two silver-silver chloride electrodes, each of which is based on the following half reaction
the oxidation of nitric oxide to nitrogen dioxide is2nog o2g reg 2no2gif 100.0 ml of no at stp reacts with 400.0 ml of
The difference in the mercury levels in the two arms of the manometer was 11.8 cm. Atmospheric pressure was 783 mm Hg. The pressure of the argon in the container was __________ mm Hg.
What are the normal freezing points and boiling points of the following solutions? (a) 11.1 g NaCl in 172 mL of water (b) 11.7 g of urea in 66.4 mL of water
what is the enthalpy change corresponding to the melting of 2.5 moles of H2O? what is the system? What is the surrounding? In what direction does the heat flow? Is the process endothermic or exothermic?
When o-phthaladehyde is treated with base, o-(hydroxymethyl)benzoic acid is formed. Show the mechanism of this reaction.
A gas cylinder contains a mixture of He and Ne at STP. Which of the following quantities would have the largest magnitude. Root mean square speed of He
Explain how the designed sensing strategy functions. Point form answers are acceptable, feel free to use a diagram in your explanation.
Assume that only a single stream exits the fuel cell. What is the flow rate of each of the species leaving the fuel cell? Not that the flow rates given to correspond a fuel cell rate at approximately 50kW using 2004 technology.
A buffer is prepared by dissolving .0250 mol of sodium nitrite in 500 ml of 0.0329 M nitrous acid. Assume no volume change after NaNO3 is dissolved. calculate the pH of this buffer.
The compound trichlorosilane (SiCl3H) has a vapor pressure of 0.258 atm at -2 degrees celsius. What is the normal boiling point ( the molar heat of vaporization of Trichlorosilane is 28.8 kj/mol)
Chemistry of Proteins and Hemoglobin - What is the effect of the following changes on the O 2 affinity of hemoglobin?
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