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A student placed 11.0 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.ml- mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 60.0ml- sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100.ml of the final solution?
What is the Volume of 0.75 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
suppose 45.0 g of water at 85 degree celcius is added to 105.0 g of ice at 0 degree celcius. The molar heat of fusion of water is 6.01 kJ mol-1, and the specific heat of water is 4.18 J/g degree celcius.
Compute the molecular formula of CH 3 COOH the percent composition of acetic acid is 39.99% C and 6.73% H. The remainder of the compound is oxygen.(The molar mass of acetic acid is 60.06 g/mol.)
Calculate how many calories of heat are needed to increases the temperature of 550 grams H2O from 12 degree celsius to 18 degree celsius?
HCl + NaOH = NaCl + H2O If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced.
A equilibrium mixture of H2,I2, and HI at 458C contains 0.110 mol of H2, 0.110 mol of I2, and 0.761 mol of HI in a 5.00 L vessel. What is the equilibrium partial pressure of H2 when equilibrium is reestablished following the addition of 0.100 mol ..
In a laboratory experiment, students synthesized a new compound and found that when 14.10 grams of the compound were dissolved in 208.0 grams of ethanol, the solution began to boil at 78.9510C
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and aluminum powder. On ignition, the reaction that takes place is 6 NH4ClO4(s) + 10 Al(s) ? 5 Al2O3(s) + 3 N2(g) + 6 HCl(g) + 9 H2O(g)
A 115 mL sample of a 11.0 M ethylene glycol (rm C_2H_6O_2) solution is diluted to 1.40 L.What is the freezing point of the final solution? (Assume a density of 1.06 g/mL for the final solution.)
calculate the atomic mass of an element with a measure specific heat of 0.14 J/(g C). Express your answer in atomic mass units to two significant figures.
Two scientists are experimenting with pure samples of isotope X, a highly radioactive substance. The first scientist has a sample with a mass of 20 grams.
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