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A 23.5 mL volume of a 0.01140 M KMnO4 solution was used to reach the equivalence point in the titration of 0.1055 g of an unknown sample containing the oxalate ion. Determine the mass (in grams) of C2O4 2 - that would be present in a 100 g sample.
describe an incident fire spill explosion etc you have experienced or research one on the internet professional journal
The gas mixture contains 2.5% sulfur dioxide (SO2) by weight. How many pounds of SO2 are released in one week? (Sig figs matter)
how many grams of bromine are required to react with 37.4 grams of aluminum chloride?
Hydrogen gas is bubbled into a solution of barium hydroxide that has sulfur in it. The unbalanced chemical equation for the reaction that takes place is:
If a student used 12.45mL of their NaOH solution to neutralize 10.00mL of a 0.543M KHP solution, then what is the concentration of the student's NaOH solution
What is the phosphoanhydride bond on the NADH structure? Although NADH and ATP both have phosphoanhydride bonds
H2(g) + I2(g) = 2HI(g) Write a general equation that expresses the rate of this reaction in terms of the product.
The iron content of hemoglobin can be determined by converting the iron to Fe2+ and titrating using MnO4 -. A 5.0 g sample of hemoglobin requires 21.6 mL of 0.00310 M potassium permanganate. What is the percent of iron in the hemoglobin sample?
1.if the methane ch4 contained in 2.00 l of a saturated solution at temperature of 25 degree celsius was extracted and
How does this technique error affect the molar concentration of the KIO3 solution. Will the reported molar concentration of the standardized Na2S2O3 solution be too high, too low, or unaffected
What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.56 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.30 mol of HI? (assume no volume change) p..
An enzyme-catalyzed reaction was carried out in a 0.2M "Tris" buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1). What was the ratio of Tris+
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