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A box of mass m is released from rest on an inclined plane as shown in the diagram. The initial height is 4.5m relative to the floor. What will be the speed of the block when it is at height 1.5m from the floor?
Calculate the molar concentration of commercial hydrochloric acid, if the solution contains 37% for mass in HCl, and if the solution has a density of 1.18 g/mL.
What compound is formed when a dilute solution of cyclohexanone is shaken with NaOD in D2O for several hours
Doubling the distance between an individual and the source of radiation reduces the radiation exposure to one-fourth the original value.
Explain why the melting temperature of a double-helical DNA increases when the Na+ concentration increases.
A gas-forming reaction produes 1.30 m3 of gas against a constant pressure of 178.0 kPa. Calculate the work done by the gas in joules.
What is the minimum mass of ethylene glycol (ethane-1,2-diol, C2H6O2) that must be dissolved in 14.5 kg of water to prevent the solution from freezing at -22.0°C? (Assume ideal behaviour.)
Give structures and names of all benzene derivatives that theoretically can have the indicated number of derivatives.
Gasoline is produced from crude oil,a nonrenewable resource. Ethanol is mixed with gasoline to produced a fuel called gasohol. Calculate the mass (in grams) of water produced when 66.89 g of ethanol is burned in 57.71 g of oxygen.
Tarnish on tin is the compound SnO. A tarnished tin plate is placed in an aluminum pan of boiling water. When enough salt is added so that the solution conducts electricity, the tarnish disappears. Calculate the standard cell potential given the fo..
Based on the standard reduction potential, which species is oxidized when current is allowed to flow? B. Calculate the value of Q, the reaction quotient, for this cell reaction. C. Calculate the actual cell potential at 25 degrees C.
When .0430 mole of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 30.00degress Celsius to 91.60 degrees Celsius. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84k..
When the following substances dissolve in water, what major species (other than water) are present? Include aggregation states. Note that this text
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