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Two gases are contained in gas bulbs connected by a valve. Gas A ispresent in a 44 L bulb at a pressure of 381 torr. Gas B exerts apressure of 381 torr. Gas B exerts a pressure of 756 torr in a 79 Lbulb. What is the partial pressure of gas B after they equilibriateonce the valve has been opened? Answer in units of torr.
which atom will have the largest atomic radius? Sb, Ba, or F?
consider a neuron at rest at 37degc with ion concentrationsinside and outside the cell as at right inside outsidena 10
What are the two steps in the Experimental Procedures that are incorporated to reduce the loss of the lead (2) iodide precipitate. Identify the steps in the procedure and the reason for each step.
at 400 k the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kpa was 9.71 pas when 10.0
Two acid-base reactions are given below. Of the three reaction arrows presented in each reaction, select the arrow (via the multiple choice circle before it) that best indicates the acid-base equilibrium position
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when Ecell is 1.017 V and [Mn2+] = 0.589 M. Use reduction potential values of Mn2+ = -1.18 V and for Pb2+ = -0.13 V.
what quantity graphed versus time yields a straight line for a zero-order reaction and what is the equation for the half life time. b) identify quantity versus time for a first order reaction and equation for half life.
Consider the diffusion of dopant element A into crystalline wafer. The dopant rich coating is considered as a large source of A relevant to the amount of A diffused, so that the surface concentration CAs can be considered a constant.
Explain why the Beer-Lambert law, stating that light absorbance is proportional to concentration, eventually becomes invalid at high concentrations of the solute being measured
if you started a ride with ice packs that held 1600g of frozen water at 0 degree celius and the temperature of the
An enzyme-catalyzed reaction was carried out in a 0.2M "Tris" buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1). What was the ratio of Tris+
To determine the empirical formula of ester, 1.02g of the ester was burnt completely in excess oxygen. The only products formed were 2.20g of carbon dioxide and .90g water vapor. Calculate the mass of oxygen in 1.02g of the compound.
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