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Nitrous oxide (N20) is also called "laughing gas". It can be prepared by the thermal decomposition of ammonium nitrate (NH4NO3). The other product is H2O.
Determine the number of moles of H2O originlly present in the compound if 9.6 g of CuSO4 are left after heating 15.01 g of the blue compound.
Calculate the chemistry principle for silly putty and candle wax as it pertains to hydrophilic/hydrophobic, polar/non polar and soluble/non-soluble and binding/non-binding?
The melting point of Pb is 327.4 degrees C; its heat of fusion is 4.774 kJ/mol; its average heat capacity in the temperature range from 51-327.4 degrees C is 0.134 J/g*K.
Determine the pressure exerted by the Ar for a molar volume of 1.42L/mol at 300K using the Vander Waals equation of state. The van der Waals parameters a and b for Ar are 1.355 bar dm^6/mol^2 and .0
If the Cu (NO) solution contains about 6g Cu^2+ per liter determine the numbers of micrograms of Cu^2+ ion are therein one spot? In this experiment it takes about 6 micro liters of solution to form
Determine the density of a proton. One of the particles that compose atoms is called the proton. The proton has a radius of approx. 1.0 x10-13 cm and a mass of 1.7x 10-24g.
Discuss what pressure difference must be generated across the length of a 15 cm vertical drinking straw in order to drink a water-like liquid of density 1.0 g/cm3?
Determine the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5C? For water Kf= 1.86C/ and Kb= 0.52C/m.
Calculate the osmotic pressure of a solution prepared from the 13.7grams of the electrolyte HCl and enough water to make a 0.50 L of solution at the 18 degrees C?
Lavoisier found that when mercury (II) oxide, Hgo, decomposes the total mass of mercury (Hg) and oxygen formed equals the mass of mercury (II) oxide decomposed.
Identify the solutions to the one-dimensional infinite square well when the potential extends for -a/22 to +a/2 instead of from 0 to +a. Are the wave functions? IS the potential invariant with respe
Evaluate the annual production of carbon dioxide in kilograms if there are 40 million cars in the US and each car covers a distance of 5000 miles at a consummation rate of 20 miles per gallon and o
Discuss why the atomic mass of cobalt is greater than that of nickel even though the atomic number of cobalt is less than that of nickel.
Suppose you decide to repeat Millikan's oil drop experiment. You refuse to measure charge in coulombs, but prefer to determine in an arbitrary unit Y.
The total pressure of a mixture of hydrogen and oxygen is1.00atm. The mixture is ignited and the water is removed. The remaining gas is pure hydrogen and excerpts a pressure of .4atm when measured a
What is the reaction that occurs? Determine w for the process. A pellet of Zn of mass 10.0g is dropped into a flask containing dilute H2SO4 at a pressure of P=1.00 bar and temperature of 298K.
A 2.5 liter vessel contains 0.1 mole of H2 (g) and 0.05 mole ofO2(g). The mixture is ignited with a spark and the reaction
Explain what type of compound will magnesium and chlorine form when reacted together? How can find the chemical formula of this compound?
An ideal gas described by the Ti=300K,Pi=1.00bar and Vi=10.0L is heated at a constant volume until P=10.0bar. It then undergoes are visible isothermal expansion until P=1.00bar.
Evaluate the boiling point of an aqueous solution of anon electrolyte that has an osmotic pressure of 10.50 atm at 25C? Kb of water is 0.52C/m. Assume its density is the same as pure water.
How many kilojoules of heat will be evolved during the combustion of 16.0g of C6H6 (l)? The value of Δ H rxn for the following reaction is -6535kJ.
A practical joker adds table salt (NaCl) to a sugar (C12H22O11) container that originally held 5kg of sugar. A chemist wishes to prepare a 1.5 molal solution of sucrose in water.
According to the law of definite proportions, discuss how much hydrogen is formed by the electrolysis of 630g of water? When 18.0g of water is decomposed by electrolysis, 16.0g of oxygen and 2.0g o
Estimate the work done when the 70.0g of tin are dissolved in excess acid at 1.00 atm and 24°C. Assume ideal gas behavior.