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If a mixture of 41.25 g of aluminum and 58.83 g of oxygen reacts, what mass of aluminum oxide can be formed?
What are the molality and mole fraction of solute in a 34.0 percent by mass aqueous solution of formic acid (CH3OH)?
A highway curve with a radius of 600 m is banked properly for a car traveling 140 km/h. If a 1580- kg Porshe 928S rounds the curve at 230 km/h, how much sideways force must the tires exert against t
Thinking Critically Arrange the following from the smallest number of representative particles to the largest number of representative particles to the largest number of representative particles :
Write a short paragraph explaining the relative movement of the halide ions in each solvent, and discuss which solvent gives a better separation for the halide ions in terms of intermolecular force
A car starts from rest on a curve with a radius of 180 and accelerates at 1.60 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.50 ?
At a pressure of 1.00 atm and a temperature of 20 Celsius, 1.72 g CO2 will dissolve in 1 L of water. How much CO2 will dissolve if the pressure is raised to 1.35 atm and the temperature stays the same
Element 107 was made by bombarding Bismuth-209 with Chromiun-54. One product is a neutron, what is the balanced equation?
The route followed by a hiker consists of three displacement vectors a, b, and c. Vector a is along a measured trail and is 1550 m in a direction 29.0° north of east. Vector b is not along a mea
Tungsten (W) forms a body-centered cubic unit cell with an edge length of 317pm. What is the length of diagonal that crosses through the body of the unit cell?
a beaker contains 100 grams of 0.50M NaCl. If you transfer 50 grams ofthe solutopn to anouther beaker, what is the molarity of the solution remaining in the first beaker.
Draw and name all the monochloro consitutional/structural isomers formed by free-radical chlorination of 3-methylpentane.
108 mm Hg on the open end. If the atmospheric pressure is 760 torr, what is the pressure of the gas (in mm Hg or torr) in the closed end of the manometer?
Using the Fraunhofer equation, nl = d(x/L), calculate the separation distance between the lines on the slide (in inches).
Chlorine molecules will dissociate at high temperatures into chlorine atoms. At 3000C , for example, kc for the equilibrium shown is 0.55. If the partial pressure of chlorine molecules is 1.5 atm,
If 35.8 mg of the compound is dissolved in enough water to make 175 mL of solution at 25°C, what is the osmotic pressure of the resulting solution?
If 158 mL of wet H2 is collected over water at 24 degrees Celsius and a barometric pressure of 739 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr.)
What is the standard heat of reaction for the following reaction?
Your reaction time before stepping on the brakes is 0.50 rm s , and the maximum deceleration of your car is 10 rm m/s^2 . How much distance is between you and the deer when you come to a stop? What
Calculate the molarity of the HCl solution from the moles of acid needed to neutralize the sodium carbonate primary standard. 0.202g of sodium carbonate was added to 100mL of distilled water. Then
The lead sulfate which was recovered weighed 333 mg. What is the percent, by weight, of lead in the ore?
Draw all resonance structures of the most stable conjugate acid of CH3NHCNH2NH2 including lone pairs radical electrons and atomic charges where appropriate. Add hydrogen atoms to heteroatoms where
A 2.3kg mass is connected to a spring with spring constant = 140N/m and unstretched length 16cm . The pair are mounted on a frictionless air table, with the free end of the spring attached to a fric
At equilibrium the density of the gas mixture is 0.515g/L at 0.755 atm. Calculate the Equilibrium Constant (Kc) for the reaction.
To store the energy produced in 1.0 hour by a 160 electric power plant, how many cubic meters of water will have to be pumped from the lower to the upper reservoir? Assume the upper reservoir is 340