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If the titrant has a molarity of 0.2750 M and there are 5.00 mL of analyte present, what is the molarity of the analyte
Calculate the partition coefficient of caffeine between water and each of the other three solvents. Which of these three organic solvents would be the best choice for extracting caffeine from an aqueous solution?
What is the density of a substance if a 2.50mL sample has a mass of 0.880g at room temperature? ( show calculations) What is the specific gravity of the substance?
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion, the temperature of the water is 26.55 C.
There are about 1,200,000 autos .each auto emits 3.1g NO2 and 1.6g CH4 per vehicle mile. Each auto travels 30 miles round trip per day. How much NO2 and CH4 in g/day is emmited in the air daily?
Calculate the pH of a solution formed by mixing 65 mL of 0.30 M NaHCO3 with 75 mL of 0.30 M Na2CO3
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air.
suppose that coal of density 1.5g/cm3 is pure carbon. the combustion of carbon is described by the question C(s)+ 02(g)- CO2 H= -394kJ
Question about Aromatic Compounds, Explain the following: a.) The cycloheptatrienyl anion is antiaromatic, whereas the cyclononatetraenyl anion is planar (in spite of the angle stain involved)
A solution is prepared by adding 0.500 g of solid NaCl to 50.0 mL of 0.100 M {CaCl_2}. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
What statement in incorrect about the following pairs of sugars? Galactose and mannose are diastereomers
what is the percent yield of CCl4 if 719 kg is produces from the reaction of 410. kg of CS2
Consider the two equilibria and their equilibrium constants: (1) 2NO2(g) ↔ N2O4(g) KC1 (2) ½N2O4(g) ↔ NO2(g) KC2
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