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If the height of the mercury column in the leveling bulb is 30mm greater than that in the gas buret and the atmospheric pressure is 670 mm, what is the pressure on the gas trapped in the buret?
does the HCl ionize the NH3 base? is the a conjugate acid or base, HCl is a strong acid, what happens when a strong acid and weak base are mixed?
Calculate the final temperature of 204 mL of water initially at 35 degrees C upon absorption of 18kJ of heat.
The infrared spectrum of the xanthene reduction product contains evidence that demonstrates that conjugation of the rings is still maintained
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
The decomposition of dimethyl ether (CH3OCH3) to methane, carbon monoxide, and hydrogen gases is found to be first-order.
In a saturated solution of lead (II) fluoride the concentration of lead was measured to be .0021 M. What is the value of Ksp for PbF2?
Draw out the complete structural formula for glutamic acid and glutamine. One has a pI of 5.65 and the other has a pI of 3.22
Calculate the number of moles of H2O formed when 0.200 mole of Ba(OH)2 is treated with 0.500 mol of HClO3 according to the chemical reaction shown below.
Histidine has three ionisable functional groups. Write the equilibrium equations for its three ionizations and assign the proper pKa for each ionization.
Find delta H for HCl(g) given H-Cl bond enthalpy = +431 kJ·mol-1;
europium crystallizers in a body-centered cubic lattice (the Eu atom occupy only the lattice points).The densisty of Eu is 5.26 g/cm^3.calculate the unit cell edge length in pm
Calculate ΔHo fusion and ΔSo fusion for the substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K. ?
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