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A student dehydrated 10.0 g of 2-methyl-2-butanol with %50 sulfuric acid and obtained 6.50 g of products. Calculate the theoretical yield and the percent yield.
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
A 26.0-g sample of ice at -11.0°C is mixed with 123.0 g of water at 90.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
If the solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 202 kPa?
What volume of 0.150M HClO4 solution is needed to neutralize 45.00mL of 8.80×10^-2 M NaOH?
Which compound is more reactive toward electrophilic substitution e.g nitration? Explain you reasoning.
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?
The Party Guy, Mr. Balloon, is making animal figures out of long thin balloons that he twists into different shapes. Assume that the balloons are of uniform thickness.
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon
A 100g sample of water at 27oC is poured into a 76.2g sample of water at 89oC. What will be the final temperature.
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
commercial concentrated aqueous ammonia is a solution of 28.0%, by mass, ammonia, NH3, (molar mass=17.0 g/mol) in water. the density pf the solution is .900g/mL.
By what factor (The factor is the ratio of the rates) does the rate of this isomerization reaction increase as the temperature increases from 256 degree celsius to 297 degree celsius ?
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