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It takes 64 mL of .124 M KOH to neutralize 25.6 mL of H2SO4 solution. What is the concentration of the H2SO4 solution?
a mass of 2.50 g of hydrated copper sulfate is placed in a crcible and heated. on heating, 1.59 g of white anhydrous copper sulfate is left behind. determine the ratio of water to copper sulfate.
What volume would a 0.0236-mole sample of helium gas would occupy at a temperature of 24°C and a pressure of 0.750 atm?
Suppose that each of the following pairs of compounds are being used as reactants in this experiment. Draw structures of the intermediate imines formed,
A student analyzed an antacid tablet from a bottle containing 120 tablets purchased for $2.79. The mass of the tablet was 1.247 grams. What is the cost of one antacid tablet in cents/tablet.
Which of the following are exothermic and endothermic?
In combustion analysis, 2.00mg of vitamin C yielded 3.00mg CO2 and 0.816mg H2o. From mass spectrometry, it was found that the molecular weight of vitamin C is 176amu. Determine the mass composition of vitamin C, its empirical formula, and its molecul..
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
The initial mass of a radioisotope is 10.0g. If the radioisotope has a half-life of 2.75 years, how much remains after four half-lives?
Determine what mass of titanium displaces 65.6mL of H 2 O at the temperature 25 degree Celsius if the density of titanium metal is 4.51 g/cm 3 at the temperature of 25 ° C .?
what volume will it occupy? Assume constant pressure. Note the temperatures are given in two different units. Be sure to change each to deg K first.
when 0.198 g of KHP is tritated with NaOH it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.
What effect on the temperature of a boiling liquid and on its distillation temperature is produced by a soluble, nonvolatile impurity?
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