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When a sample of the aqueous layer with a volume of 10.93 mL is collected, it requires 18.19 mL of a titrant solution of S2O32- with a concentration of 0.01085 M to reach the endpoint. The reaction has a 2:1 mole ratio of thiosulfate to all reducible iodine species. Calculate the concentration of total reducible iodine (mole/L) in the aqueous layer.
If a reaction was set up at 630K with initial partial pressures of methane of 105.1 torr and of 7.96 torr for I2. Compute the pressures, in torr, of all reactants as well as products at equilibrium.
Calculate the mass in grams of hydrogen chloride produced when 5.60 L of molecular hydrogen measured at STP reacts with an excess of molecular chlorine gas.
What is the molarity of a HCl solution if 5.00 ml is neutralized by 28.6 ml of a 0.145 M NaOH solution?
A 1.0 L solution has a mixture of 0.05 M NaH2PO4 (pKa = 6.86) and 0.10 M Na2HPO4. How much 1.0 M NaOH should be added to bring the solution to pH 7.4?
Calculate the mass of urea that should be dissolved in 201 g of water at 35°C to produce a solution with a vapor pressure of 37.1 mmHg.
The densities of the two allotropes are 2.27g/cm3 (graphite) and 3.52 g/cm3 (diamond) at the temperature of the environment. Explain By how much does U for the transition differ from H in a region where the pressure is 500 kbar
Why does BrO2 have a free radical? explain the bonding that happen, and why it happens. Why does NO have a free radical? I know it's because there in one unpaired electron
what mass of Mg is formed from molten MgCl2 if a current of 1.8 amps is passed through the sample for 16.7 hours
If 32.5 grams of CaO are dissolved in 212 grams of water, what is the concentration of the solution in percent by mass?
Explain the meanings of Vmax and Km. How do you get them from a graph of v vs. [S]. Draw a generic example and label appropriately. What are the differences between a competitive and non-competitive inhibition
What volume of glacial acetic acid (d= 1.06g/ml) and what weight of solid potassium acetate are required to prepare 5 liters of 0.2M acetate buffer
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100.- g sample of this compound. what are the
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