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How many kilojoules of heat must be provided to convert one gram of liquid water at 67 degrees Celsius into one gram of steam at 100 degrees Celsius?
Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
Dichloromethane has a specific gravity of 1.33: a) What is the mass (kg) of 75 liters? b) What is the volumetric flow rate (L/min) of the dichloromethane entering a storage tank if the mass flow rate is 960 kg/min.
A balloon is partly inflated with 480 liters of helium at sea level where the atmospheric pressure is 996 mbar.The balloon ascends to a altitude of 3000 meters.
Rubidium has two naturally occurring isotopes with the following masses and natural abundances, Calculate the atomic weight of rubidium.
Your friend decides to decrease cooking time for spaghetti noodles by adding table salt to 2.0 L water. How much table salt (NaCl) must be added to the water in order to raise the boiling point by 4.0?C? (Kf = 1.86?C/m, Kb = 0.512?C/m)
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L.
0.60 g of hydrogen chloride (HCl) is dissolved in water to make7 L of solution. What is the pH of the resulting hydrochloric acid solution.
When a neon atom is electrified, the electrons jump to higher orbits. One of the electrons falls from an outside orbit to an inside orbit giving off red light with a wavelength of 7.34 x 10-7 m. Calculate the frequency of the red light given off b..
Ammonia and oxygen react to form nitrogen and water. How many grams of N2 can be produced when 6.30g O2 reacts?
The radius of the Earth is approximately 6370 km. if one could dig down straight towards the center of the Earth, one would find that the innermost 3480 km (the core) has an average density of about 11.g/cm^3.
25g of a hydrocarbon undergoes complete combustion leading to the formation of 77 g of CO2. What is the % of carbon in the hydrocarbon?
What is the ph of the solution obtained by mixing 30.00mL of 0.250 M HCl and 30.00 mL of 0.125 M NaOH?
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