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Determine the numbers of moles of silver chloride will be precipitated when 48.9 grams of barium chloride dehydrate BaCl2*2H20, is treated with excess silver nitrate solution.
Determine the force and the pressure exerted on the wall given that the area of the wall is 100 cm^2 and the speed of the atoms is 600 m/s if the atoms are colliding with the walls perpendicularly (
Explain at what temperature will Helium atoms have the same crms value as N2 molecules at the 25 degrees Celsius? Solve this problem without calculating the value of crms for N2.
Determine the numbers of liters of H2 and O2 at STP are essential to form of H2O and what is the difference among the elements, compounds, and mixtures?
What is its molecular mass? At 23.6C, 0.500 L of a solution containing 0.302 grams of antibiotic has an osmotic pressure of8.34 mmHg.
A container which is having a mass of 78.91g when empty and 92.44g when filled with the water. The density of water is 1.0000g/cm3.
Explain briefly why the existence of life does not contravene the second law. The second law of thermodynamics states that for all spontaneous processes, the entropy of the universe increases.
Write down the structural formulas for these compounds (including 2isomers for compound 3) as Werner would have written them.
Explain in what way would you suspect that the Jorgensen idea of putting less-reactive chlorides next to the cobalt atom and those more reactive farther away influenced Werner's thinking?
Combinations of, ammonia molecules, platinum (II) cations thiocyanate anions, and ammonium cations result in the formation of a series of five coordination compounds.
What is the typical length and strength of a chemical bond? (E.g., you can calculate by looking at a table.)Suppose that a typical bond will break when the bond has been stretched some multiple of t
Nickel produces a gaseous compound of the formula Ni (CO)x. Determine the value of x given the fact that under the same conditions of pressure and temperature, methane (CH4) effuses 3.3 times faster t
Determine the composition (in mole fractions) of the gas that passes through the orifice. The molar mass of deuterium is 2.014 g / mol. An equimolar mixture of H2 and D2 effuses th
Calculate the maximum number of capsules per second that can be produced from a single capillary if the Weber number is to be below un
Determine the numbers of moles of water are proportional to one mole of CuSO4. The entire solution - water and all-weighs 5 grams. The water alone has a mass of 1.804grams and the pure CuSO
Assuming no loss of heat to the surroundings, determine the final temp of the system? A 50.0 g ice cube at 0 degrees C is added to a glass which is having the 400g of water at 45 degrees C.
Charles's law is sometimes expressed in the form V0 (1+αθ), where θ is the Celsius temperature, α, is the constant, and V0 is the volume of the sample at 0oC. The followin
An aqueous solution containing 35 wt% H2SO4has a specific gravity of 1.2563 at 25 degrees Celsius. A quantity of the 35% solution is required that contains 195.5 kg of H2SO4.
Determine the numbers of geometric and optical isomers does this compound have? Draw diagrams showing the molecular structures of these isomers.
This reaction takes place at constant temperature and pressure. The reaction enthalpy for the reaction N2O5(s) ->2NO2 (g) + 1/2 O2 (g), is+109.5 kJ/mol at 298 K.
Discuss on the chemical structure of the amino acids serine, lecuine, and cysteine? Also discuss the functional groups of these amino acids contribute to differences in their properties.
Given that Cv (Heat capacity at constant volume) for ammonia is 3R, if the process is carried out at constant total volume, describe the final temperature of the gases?
As the temperature increases at constant pressure, does the density of a gas increase, decrease, or stay the same as the pressure increases at constant temperature?
The molar heat capacities of hydrogen, oxygen, and gaseous water are 28.82, 29.36, and 33.58 J/K mol, respectively. The standard enthalpy of formation of gaseous water is -241.82 kJ/mol at 298 K. E
Explain which are the two amino acids that, although not isomeric, have essentially the same molecular mass for the neutral molecules?