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A sample of steam with a mass of 0.552 g and at a temperature of 100 C condenses into an insulated container holding 4.35 g of water at 7.0 C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Demonstrate how an addition reaction of H3O+ to an alkene is the reverse of a catalyzed E1 reaction of an alcohol.
For the analyte with pka= 5.6 and 60/40 acetonitrile/water eluent composition what should be the pH of an aqueous portion of the mobile phase to ensure complete ionization
Glycolysis and gluconeogenesis are reciprocally regulated at the steps that interconvert fructose-6-phosphate and fructose-1,6-bisphosphate.
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
water boils at 373 k.the molar enthalpy of vaporation for water is 407 kjmo1.if one mole of water is at 373 k when it
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
Calculate the mass of KClO3 decomposed. The vapor pressure of water at 28 °C is 28.3 mmHg. (Hint: The gases collected are a mixture of oxygen and water vapor
The graph above shows the titration curves of four monoprotic acids of varying strengths. All of the acids start out at 0.1 M concentration and 25.0 mL volume. Choose all of the correct statements about these titration curves from the choices belo..
The hydrogen gas formed in a chemical reaction is collected over water at 30 at a total pressure of 737. What is the partial pressure of the hydrogen gas collected in this way
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing
The C-C bond in this structure should become the C2-C3 bond in (2R,3S)-2-bromo-3-phenylpentane. Type the name of an atom or group to add to the structure, or press the atom's button. Click on an H atom to replace that H atom with the atom or group..
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