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A 771 mL gas sample at STP is compressed to a volume of 242 mL, and the temperature is increased to 31?C. What is the new pressure of the gas in Pa
Compute the band gap for this semiconductor material after Consideing an intrinsic semiconductor with a conductivity σ that triples between the temperature 27 degree Celsius and 57 degree celsius.
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 72% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9 multiplied by 10-12.]
Explain the three main types of intermolecular forces including dispersion forces, intermolecular forces, dipole-dipole force explain what they are also provide an example of each intermolecular force where it occurs.
calculate the new temperature in Celcius- tank of helium gas with a pressure of 270 torr at 4 degrees celcius is heated to give a pressure of 1500 torr
If 125 calories of heat is applied to a 60.0 grams piece of copper at 21.0 degrees Celsius, what will the final temperature be? The specific heat of copper is 0.0920 calories per grams times Celsius.
What is the molar mass of this substance, express your answer in g/mol and determine the moloar concentraitions Cr 2 O 7 ^2 and of K + ?
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
Calculate the molar mass of the unknown gas. (remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0L
A total of sixteen grams of steam at the temperature of 120 degree Celsius is admitted to the system. Determine the phase composition and temperature at the time when equilibrium is reestablished?
The reaction between solid sodium and Iron (III) oxide is one in a series of reactions that inflates an automobile airbag.
Explain Gibbs-Duhem Equation, In a certain binary solution, the activity of component 1 is given by
Consider the following reaction, where X represents and unknown element. 6X(s) + 2B2O3(s0 = B4X3(s) + 3XO2(g) If 165 grams of X reacts completely with diboron trioxide to rproduce 2.29 mol of B4X3.
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