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1) How can you distinguish chemically between starch and three other carbohydrates (sucrose, glucose, & lactose)?
2) What would you expect to observe when adding one drop of iodine-potassium iodine reagent to each of the four carbohydrates?
3) How does Benedict's Reagent distinguish between carbohydrates?
4) When adding 5 drops of Benedict's reagent to 2 mL each of the above four carbohydrates and setting the test tubes in a hot water bath for 1-2 minutes, would you expect to see any color change and if so, what color and in which ones?
What is the theoretical yield of aluminum oxide if 1.60 mol of aluminum metal is exposed to 1.50 mol of oxygen?
If 17.9 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia.
Sodium chloride has solubility in water at 100.0°C of 39.1 g sodium chloride per 100 g of water. Calculate the boiling point of a saturated solution of sodium chloride in water.
The % of antifreeze should be raised to twenty five percent by draining some of the mixture and adding 100% antifreeze determine how much mixture should be drained?
Determine water solubility under normal atmospheric conditions (assuming that Carbon dioxide obeys Henry's law?)
A piece of metal of mass 20 g at 99?C is placed in a calorimeter containing 55.8 g of water at 23?C. The final temperature of the mixture is 30.4?C.
An oil bath maintained at 50.5 oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
How much heat is required to warm 12.0 g of ice, initially at -11.0 C, to steam at 113.0 C?
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
How many moles of Na3C6H5O7 can be produced if one tablet containing 0.0164 mol of NaHCO3 is dissolved?
Calculate what the limiting reactant is in the reaction between copper (II) oxide and hydrochloric acid
The vapor pressure of benzene (C6H6) is 120 torr at 27.0C, and its normal boiling point is 80.1C. What is the molar heat of vaporization of benzene.
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