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Antarctica, almost totally covered in the ice, has an area of 5,500,000 mi2 with an average height of 7500 ft. Without the ice, the height would only be 1500ft. calculate the mass of th
What will happen if you then raise the pH by adding aqueous NaOH when you lower the pH of a solution containing aqueous sodium benzoate, precipitate eventually forms.
The basketball player can jump to the height of 1.1m off ground, so he can easily dunk the basketball. For such leap, find his "hang time" - time spent in air after leaving ground and before touchin
The water solubility of sodium oxalate and oxalic acid at room temperature are 3.7 4/100 mL and 10 g/100mL, respectively. Could you prepare oxalic acid by adding HCL to a solution of sodium oxalate,
Determine how many milliliters of 0.0500 M KMnO4 would be required for the reaction of 5.00 ml 0.185 M H2C2O4?
What is the molar concentration of AgNO3 in the solution when a student dissolves 0.3000 g AgNO3 (169.88 g/mol) and dilutes it to precisely 250.0 ml.
Calculate how many orbital are completely filled in an atom with the electron configuration of 1S2, 2S2, 2P6, and 3S1?
In the typical landing, the jet touching down at 240km/h is stopped in the distance of 95m. Find magnitude of jet's acceleration as it is brought to rest? How much time landing takes?
If you place 2.05 g of aluminum in a beaker with 185 mL of1.35 M KOH, will any aluminum remain (show all calculations). What mass of KAl (OH)4 is formed?
The boiling point of pure benzene is 80.10 o C, whereas the solution has a boiling point of 80.34 oC. Anthracene, a hydrocarbon obtained from coal, has an empirical formula of C7H5.
Calculate the osmotic pressure of human blood at 37 C. Assume the blood is isotonic with a 0.16 M NaCl solution, and assume the van't Hoff factor i is 1.9 for NaCl.
A commercial carbonated soft drink is bottled at a temperature of 20 C so that the beverage contains CO2 gas at a pressure of 6.5 atm over the liquid.
The buckets hold seven gallons and three gallons of water, respectively. How to get exactly five gallons of water to take home?
? Create appropriate data that can be used in part (c). Explain what procedures are needed to obtain these data?
The hydrocarbon dissolves readily in CCl4. A solution prepared by missing the135 grams of CCl4 and 4.36grams of the hydrocarbon has the boiling point of 78.7 C.
At 20.0 deg Celsius a flask filled with ethanol has a total mass of 48.676 g. The flask is emptied and some ball bearings with a mass of 19.234 g are added to the flask.
Determine the concentration of water, in mol/L, in a watery diluted solution, at room temperature. (Assume that their concentration in the solution equals to their concentration in pure water)
The student body at Eisenhower High School is having the election for Homecoming King. Using Borda Count Method, compute winner of the election.
Explain which of the following solvents (methanol, water, or mineral oil) would be good for dissolving grease? Explain, does the solubility of air in water increase or decrease as the temperature of s
EDTA is a chemical used to treat some forms of lead poisoning. It can be theoretically donate four protons to an aqueous solution. Exactly halfway between the second and the third equivalence point,
Decomposition reaction using the 25.0 mL of 0.200 M hydrogen peroxide solution and obtain the following results: 8.62mL of gas is collected in the 120 seconds.
If the percent composition is 74.0% carbon 8.7%H and 17.3%N estimate the molecular formula of nicotine? Nicotine is found in tobacco and has a molar mass of160g/mol.
Determine the work done during the isothermal reverse expansion of a gas that satisfies the vertical equation of state. Estimate (a) work for 1.0 mol Ar at the 273K(b) the same amount of a perfect g
Determine the difference between a hydrogen ion and hydronium ion. Provide the molecular level description of the mechanism of the formation of the hydronium ion
Which of three slices are fair shares to Cindy? Determine the fair division of cake using S1, S2, and S3 as fair shares. If this is not possible, describe why not.