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Calculate the mass of carbon dioxide forms in the combustion reaction of 25 grams of glucose with 40 grams of oxygen?
C6H12O6 + 6O2 6 CO2 + 6 H2O + ?H
25.0mL of a 0.100M solution of NH3 is titrated with 0.150M HCl. After 10.0mL of the HCl has been added, the resultant solution is: a) basic and before the equivalence point
This sample was reacted with excess ammonia in diethyl ether at 0 c. The product mixture had a specific rotation of -29.9 degrees. If the specific rotation of pure (R) 1-phenyl ethanamine is +39.3 degrees. This reaction resulted in [X] percent inv..
Without doing a calculation, which of the bonds below would you expect to have the higher stretching frequency. C-O or C=O
When heated, hydrogen sulfide gas decomposes according to the equation above. A 4.40 g sample of H2S(g) is introduced into an evacuated rigid 1.50 L container. The sealed container is heated to 583 K and 5.72x10^-2 mol of S2(g) is present at equil..
250 ML of a saturated aqueous solution of CaF2 at 25 degrees celsius is found to contain 0.0040 g of dissolved CaF2. Find Ksp of CaF2 in water at 25 degrees celsius.
what is the average power (energy per unit time) in units of watts (1W = 1J/s) associated with such a pulse? b. How many photons are emitted in such a pulse?
Problem- The pH of a solution prepared by dissolving 0.350 mol of solid dimethylamine hydrochloride((CH3)2NH2CL) IN 1.00L of 1.10M dimethylmine ((CH3)2NH) is. The Kb for methylamine is 5.40x10^-4. (Assume the final volume is 1.00 L.)
consider the following factswater freezes spontaneously at -5c and 1 atm and ice has a moreordered structure than
Which of the following is a homogeneous mixture? Which of the following represents a chemical change, rather than a physical change? Which of the following pairs of symbol & element is incorrect?
A horizontal force of 100 Newtons is applied to a block having a mass of 10 kg; the frictional force across the floor is equal to 20 Newtons. What is the acceleration of the block. Remember to use appropriate units.
If 13.57 g of copper(II) chloride react, what is the maximum amount of precipitate that could be formed?
Calculate the pH of a solution made by mixing 100.0 ml of 2.00 M acetic acid (HC2H3O2) with 100.0 ml of 1.00 M NaOH. (Ka for HC2H3O2 = 1.8 X 10^-5)
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