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Estimate the enthalpy change when 8.50L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature?
When the rock is dropped from the cliff into the ocean, it travels approximately 16t^2 feet in t seconds. If splash is heard 2.5 seconds later and speed of sound is 1100ft/sec, approximately height
Estimate the temperature at which water boils on a day in the mountains when the barometric pressure is having 593mmHg where the heat of vaporization of water is 40.79 kJ/ mol.
Estimate the likely molecular formula for this compound? The boiling point of another member of this homologous series was found to be 309 k.
To effuse from a hole in a chamber a given volume of nitrogen needed the 68.3 seconds. Under the same conditions, another gas needed 85.6 seconds for the same volume to effuse. How can estimate the
Determine the numbers of oxide ions surround each Mg2 + ion as nearest neighbors? MgO has the same cyrstal structure as NaCl, face-centered cubic.
Determine the numbers of moles of Al2(SO4)3 can produce under these conditions mol. Determine the numbers of moles of the excess reactant remain after the completion of the reaction?
From the signing, O=72 degrees from point C to point B. Point B is directly across river from point A. Find How wide is river?
The radius of the oil spill (in meters) is 50 times square root of time t (in hours). Write rule of the function f which gives radius of spill at time t.
Determine the van's Hoff factor for the electrolyte. A dilute electrolyte solution is prepared by dissolving the iron (III)chloride in the water. It is found to have a freezing point of-2.90 C. Cal
Determine the numbers of energy is needed to vaporize the 125g of benzene, C6H6, at its boiling point, 80.1 degrees C? where the heat of vaporization of benzene is 30.8 kJ/mol
The projectile is thrown upward so that its distance above ground after t seconds is h= -10t^2 + 420t. After how many seconds it reaches its maximum height?
The rectangular plot of land is to be enclosed utilizing two types of fencing. Two opposite sides will have heavy duty fencing costing $3/ft. Determine the formula for area A of rectangular plot in t
The ball is thrown upward with the initial velocity of 25 meters/second from the cliff that's 200 meters high. Height of ball is provided by quadratic equation.
Calculate the mass of potassium oxide formed when the 3.40 g potassium react with excess oxygen when the potassium metal reacts with the oxygen gas to give potassium oxide.
Calculate the mass of oxygen needed to react with the 1.60 g potassium when the potassium metal reacts with oxygen gas to give potassium oxide. Atomic masses in g mol-1 of K = 39.10 and O =16
Determine the volume of 0.5000M EDTA required to titrate the Ca2+ in a 0.5140g mineral specimen that is 81.4% brushite,CaHPO4*H2O (MW: 172.09 g/mol).
Calculate the rate of transfer of heat by conduction from the warm sheet (50 C) to the cold sheet (-10 C)? Determine the rate of loss of heat when the two sheets of copper of area 1.50 m2 are
Determine what minimum mass of H2So4 (in g) would you require? What mass of H2 gas (in g) would be formed by the complete reaction of the aluminum block?
Calculate the probability that the particle will be found with a linear momentum when a particle is in a state described by the wave function , where the χ is a parameter.
Find out the specific rotation? Determine the specific rotation if the same solution is placed in a 5 cm tube? A solution is added to a 20 cm polar meter tube. 3.2g of solute is dissolve
Calculate the bonding geometry around the nitrogen atom in the following unstable nitrogen oxides. (N2O2 and N2O3have N-N bonds; N2O5 does not)
The formula P=0.62x2-0.042x+2 models approximate population P, in thousands for the species of fish in the local pond, x years after 1997. During what year will population reach 63,580 fish?