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For the following reaction at equilibrium at 445 celsius the partial ressures were found to be ; [H2] = 0.45 atm, [I2] =0.10 atm and [Hi]=1.53 atm. calculate Kp for this reactino H2(g)+I2(g)---->2HI(g)
Estimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance.
An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 amu.
A cell that uses bromine to oxidize hydrogen H^+ under standard conditions at 298 K has a positive potential.
What volumes of water (steam) and nitrogen monoxide are measure under same conditions of T and P.
What is the volume of 135 mL of oxygen gas at 113°C and 870. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
Iodine-131 is a radioactive isotope. After 4.00 days, 70.8% of a sample of 131I remains. What is the half-life of 131I
Find the enthalpy change for the chemical reaction below PCl5(g) ----> PCl3 (g) +Cl2 From the following equations:
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
Determine the point group of each of the three possible geometries of the hypothetical Be3+ on, ten draw the molecular orbitals for each geometry,
What is the estimated temperature of the object using the above approximate prescription? What is the percent error?
The Cl^- concentration in the water analysis given has been questioned. What concentration of Cl^- (mg/L) would make the cations and anions balance?
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