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How many bonds and how many lone pairs are around the sulfur of SO3? a double or triple bond counts as one bond
A. four bonds and no lone pairs
B. three bonds and one lone pair
C. three bonds and no lone pairs
D. two bonds and one lone pair
Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 11.5g of HF and 25.0 g
What is the equivalence volume, Ve, in milliliters? Calculate the concentration of Ca2 at V = 1/2 Ve?
An iron bar of mass 965 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by metal.
Calculate the heat energy released when 19.6 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.
What is the molarity of a solution prepared by dissolving 4.92 g of calcium nitrate, Ca(NO3)2, in 250 mL of water? (The molar mass of Ca(NO3)2 is 164 g/mol.)
What is the pH of a solution prepared by dissolving 11 mmol of a weak base in 350 mL of a 0.199-M solution of its conjugate acid
If the absorbance of a sample of Diet Dr. Pepper is 0.215 at 214nm, what percentage of the 214nm radiation falling on the sample passes through it?
if 98 g grams of CaCN2 reacts with 59 g grams of H2O, what mass of NH3 will be formed.
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 103kJ of heat?
Classify each description of a complex by the number of unpaired electrons in the d4 metal ion.
Construct quantum mechanical operators for the following observable: (1) the inverse separation 1/x
Find the appropiate equilibrium constant (Kp) for the reaction below under the following conditions.
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