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What is the law of conservation of energy? Give a specific example. Discuss this in terms of a chemical reaction.
State the composition and the properties of the ketohexose derived from fruit jam. Describe the manner in which ketohexose acts as a reducing sugar in the test.
given that 10.0 grams of metal at 99.0oc are placed in 50.0 grams of water at 24.0 oc in a perfectly insulated
Calculate the concentration of Cu in the chloroform phase if 30 mL of a 0.28 M aqueous Cu solution buffered to pH 4 is equilibrated with 22 mL of chloroform.
upon decomposition one sample of magnesium fluoride produced 1.65 of magnesium and 2.57 of fluorine. a second sample
Consider the gas reaction of the formation of nitrogen dioxide from nitric oxide and oxygen. If 9.0 L of NO are reacted with excess oxygen gas at STP, what is the volume in microliters (use proper scientific notation) of the nitrogen dioxide produ..
1. how many times would a mole of timbits placed end to end reach from here to mars and back. distance from earth to
A sample of Tl-201 has an initial decay rate of 5.84×104 /s. How long will it take for the decay rate to fall to 319 /s. ( Tl-201 has a half-life of 3.042 days.)
Nitrogen and oxygen gases react to form dinitrogen trioxide gas. 2 N2(g) + 3 O2(g) -> 2 N2O3(g) At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2.
Define A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein
a steam turbine operates between 500 degrees C and 3.5 MPa to 200 degrees C and 0.3 MPa . if the turbine generates 750 kW and the heat loss is 100 kW, what is the flow rate of the steam through the turbine
a 1.00m solution of nitrous acid hno2 had a ph of 2.07.a write a balanced equation showing how nitrous scid hno2
After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter
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