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ow many milliliters of 0.200 M NaOH will be required to titrate 8 mL of 0.479 M H2SO4
If 3.8kcal of energy is released when 1 gram of glucose is combusted, how many kcals are released when 0.689 moles of glucose are combusted
At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).
Molecular Formula of a Compound from Percent Composition and Molar Mass, What is the molecular formula of a compund that contains 42.87%carbon, 3.598% hydrogen, 25.00% nitrogen
When maleic acid is heated to about 100C it forms maleic anhydride.however fumaric acid requires a much higher temperature
How much heat is needed to convert 10.0 g of ice at -25.0ºC to water at 80.0ºC?
A solution is prepared by dissolving 294 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.
Acetylene gas (C2H2) is produced by adding water to Calcium carbide CaC2. How many grams of acetylene are produced by adding water to 5g CaC2?
Calculating new pH, a). How many mL of each of 0.10M lactic acid solution and 0.10M NaOH solution are needed to make 800mL of a buffer of pH 3.50?
Methyl Orange is an acid-base indicator. In dilute solution, at pH greater than 4.4, it is yellow. At pH=3.2 the solution appears red. Draw a structure of the species that is formed at the lower pH of the acid proton adds to the azo nitrogen atom ..
How many moles of Na2SO3 were added to the calorimeter cup if 30.0mL 0.50 M NaOCl and 70.0mL 0.50 M Na2SO3 were combined?
Solar furnaces are designed to focus sunlight (say, with a parabolic mirror ) onto a relatively small area. given that the surface temperature of the sun is about 600K.
Calculate empirical formula of this compound & molecular formula and calculate the molality of solution of sulfuric acid?
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