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Alexander, who weighs 189lb, decides to climb Mt. Krumpett, which is 5310 m high. He decides to take nutrition bars for his food supply. The label on the bars states that each 100 g bar have 40 g of
The initial velocity of 10 miles per hour, will she clear two cars? if she doesn't make it. What recommendations can you make mathmatically to guarantee that she wll make jump?
A 5.000g of sample that contained BaCl2*2H2O and NaCl was heated. After heating the sample had a weight of 4.751g. Calculate the percent NaCl in the sample?
From the gumarabic showed the elemental analysis of an organic solid extracted that it contained the 6.7%H, 40% C and 53.3% O. Solutions of 0.650g of the solid in 27.8g of the solvent diphenyl provi
With 0≤ x ≤ 2 A particle restricted to one dimension x is described by the un-normalized wave function Ψ (x) = x3. Calculate the probability of finding the particle among the x =
Determine the number of moles of CCl4 formed, One mol of carbon reacted with the 1.00 mol of chlorine: C + 2Cl2 ® CCl4 , suppose the reaction went to the completion.
At room temp when the FTIR spectrum of n-octadecane is collected, there are some sharp peaks due to atmospheric water at >3400 cm^-1. There are also broad CH peaks around the 2900 cm^-1.
An oxygen gas is collected over the water. The total pressure is 738 torr. The temperature of the water is such that the water vapor pressure is 43 torr. Find out the partial pressure of the oxygen
Calculate what observations would be made if the potassium iodide were added to a saturated silver chloride solution. Explain in detail when the Silver iodide is more insoluble than is silver chlor
To make perfect ramp, he requires to determine angle, theta, of the take off point on inclined ramp. He plans to travel at the speed of 100 ft per second toward inclined plane.
Determine the molality of the solution if it freezes at-0.9C when an aqueous solution contains the amino acid glycine, NH2CH2COOH. Suppose that the acid does not ionize in the water.
Determine the Henry's Law constant if the solubility of N2 in blood at 37C and at a partial pressure of 0.80atm is 5.6x10^-4 mol/L.
Calculate the screening constants and the effective nuclear charges for: Explain how do these values are relate to each other?
Discuss the trend in the electron affinities and ionization enthalpies across the third short period (Na through Ar). Discuss in detail.
Calculate the boiling points and freezing points of a 1.17m solution of naphthalene in the benzene? Where the freezing point of benzene is 5.5 and the boiling point of benzene is 80.1
Hexane and pentane form an ideal solution. The vapor pressures of pure hexane and pentane are 145 torr and 511 torr, respectively. A solution is prepared by mixing the 1.00 moles of hexane with 2.00
A 0.10mol/l solution of propanoic acid (CH3CH2COOH) is pH 2.96. Determine the percent dissociation and the Ka (Acid dissociation Constant) for this acid.
In the first trial the procedure, The ratio of moles H20/moles CaSO4 is found to be 1,93 and in the second trial the ratio was found to be 1,98. Determine the relative average deviation of the two
Determine the numbers of grams of water were driven off? Determine the numbers of moles of water were driven off? Determine the numbers of percent mass of water in the hydrate?
Points A and B are separated by the lake. To find distance between them, surveyor locates the point C on land such that CAB = 48.8°. He also estimates CA as 311 ft and CB as 527 ft. Determine d
Why must the crucible be cleaned before weighing at the beginning of the produce? Explain why must the crucible be heated and allowed to cool before the weighing?
Determine how does this compare with the minimum escape speed for leaving from the Earth's surface (Determine the ration of this speed too escape velocity from the surface)?
Calculate the safety precaution associated with handling the clay triangle, crucible and the tripod? Discuss in deatail.
i) A rectangular surface of 0.21 m x 0.38 m is oriented in a uniform electric field of 570 N/C. Determine the maximum possible electric flux via the surface?