How many moles of o2 are present
Consider a flask containing a mixture of helium and oxygen. The volume of the flask is 1.25L, the temperature is 315K, and the total pressure is 0.90atm. If the flask is known to contain 0.005 mol of helium, how many moles of O2 are present?
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At what volume of distillate collected, during fractional distillation, would a rapid increase in temperature be expected for 100mL of a 1:1 mixture of an ideal solution?
The wireless system uses the transmitted scheme of a binary data source, baseband signal generator and a modulator. The baseband signal generator uses the rectangular pulse. The data rate is Rb=100 Mb/s. Determine the bandwidth of the modulate
A circular shaft is subjected to a torque Ta and a bending moment Ma. Assuming that the diameter of the shaft is d, determine the expressions for the principal stresses and maximum shear stress in terms of Ma, Ta and d.
Write a balanced chemical reaction for the formation of a free fatty acid from a soap molecule under acidic conditions. Why would the formation of free fatty acids inhibit the cleaning ability of the soap? (Hint: how does soap cause "dirt" to bec
A fish tank holds 42 of water. Using the density of 1.0 for water, determine the number of pounds of water in the fish tank.
Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constantsfor methane are a = 2.300 L^2 atm/ mol^2 and b = 0.0430 L/mol.
Digital binary data are transmitted with bit rate Rb = 1 Mbps over frequency selective radio channel using BPSK modulation format. The channel impulse response duration is Tc = 1ms. Find the number of carrier we need for multi-carrier transmi
What mass of sucrose should be combined with 491 g of water to make a solution with an osmotic pressure of 8.70 atm at 270 K?
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