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If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 M H2SO4, identify the principal components (ions, molecules) in the flask at the endpoint besides solvent water or indicator.
A) OH-
B) H2SO4
C) SO42-
D) NaOH
E) Na+
F) H+
Calculate Kc for the reaction 2CCl4(g) + O2(g) [3] 1.75 moles of H2O2 were placed in a 2.50 L reaction chamber at 307C. After equilibrium was reached, 1.20.
Calculate ?Sºf for oxalic acid and ?Sº for the combustion of one mole of oxalic acid. c) Calculate ?Gºf for oxalic acid and ?Gº for the combustion of one mole of oxalic acid.
Potash is composed mainly of potassium caronate, K2CO3. If 1.000g of potash reacts with sulfuric acid to produce 145 mL of carbon dioxide gas at STP, what is the % of potassium carbonate in the marble sample
He is heated until the pressure reaches 3.50 atm. What is the final temperature in degrees Celsius
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively
How much heat is required to warm 231 g of ice from -45.1°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C
Either bulb will be used for 2,000 hours per year at an electricity cost of $0.14/kwh (kilowatt-hour). If the interest rate is 6%, which bulb is more cost effective over 8,000 hours of use based upon a comparision of Net Present Values?
A solution of only A is made that is initially 0.800 M. After the solution is allowed to reach equilibrium, it is determined that the concentration of B is 1.20 x 10^-4 M. Use this information to determine the equilibrium constant for the reaction..
Starting with the original concentrations, what is the rate of the reaction if [A] and [B] are both increased by a factor of six
Draw the Newman projections for the anti and gauche forms of 1,2-dibromoethane. The molecule has a dipole moment of 1.0 D.
Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Periodic Table.
Calculate the molarity of a hydrochloric acid solution that is 18.25% HCl by mass and has a density of 1.20 g/mL.
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