What is the molarity of the unknown acid solution
A 25mL portion of an unknown monoprotic acid solution was titrated with 1.5 M NaOH. It was found 20mL of this base was required to neutralize the sample. What's the molarity of the unknown acid solution?
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An insulated container is used to hold 45.60g of water at 39.70 degrees Celcius. A sample of copper weighing 8.50g is placed in a dry test tube and heated for 30 minutes in a boiling water bath at 100.10 degrees Celcius.
Pure Ag melts at 961.8 degC and boils at 2162 degC. The heat of fusion for Ag is 11.28kJ per mol and the heat of vaporization is250.6kJ per mol. Calculate the entropy change for Ag from 961.7 degC to 2162.1degC.
How many molecules of water are produced by the reaction of 18.2 grams of propane with 80.0 liters of oxygen at STP? C3H8 + 5O2 -> 3CO2 + 4H20
If you take 1000.steps per day to the west with each step coverting 0.675m,how many days will it take to get to California? Assume the distance to California is 2.22 x 10 to the 6 power or exponent m.
An accident to the head can effect the ability of a person toventilate [ breathe in and out], and so can certain drugs. What would happen to the partial pressures of oxygen and carbon dioxidein the blood if a person cannot properly ventilate?
A 74.8 g sample of copper at 143.2°C is added to an insulated vessel containing 165 mL of glycerol, C3H8O3 (l) (d = 1.26 g/mL), at 24.8°C. The final temperature is 31.1°C. The specific heat of copper is 0.385 J g-1°C-1. What is the he
Monatomic molecules adsorbed on a surfase are free to move on this surface and can be treated as a classical ideal two dimensional gas .At absolute temperture T. What is the heat capacity per mole of molecules thus adsorbed on a surface of fixed s
Calculate the amount of Ca(NO3)2 x4H2O(s) needed so that the Ca2+ isin excess of the iodate ion concentration by 20% (i.e., calculate aweight of calcium nitrate that is 20% higher than the minumum required to produce 10 g of calcium iodate).
Determine the exit temperature and the power input assuming that the air is (a) an ideal gas with constant specific heats and (b) an ideal gas with variable specific heats.
If a second sample of chloroform is found to contain 28.6 g of carbon, what is the total mass of chloroform in the second sample?
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