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A copper refinery produces a copper ingot weighing 75 kg. the density of the copper is 8.94 g/cm^3. if the copper is drawn into a wire whose dimeter is 8.250mm,how many feet of copper can obtained from the ingot? b) what is the volum of the copper ingot in m^3?
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
Carbon monoxide gas reacts with hydrogen gas at elevated temperatures to form methanol according to this equation. CO(g) + 2 H2(g) CH3OH (g)
A 370. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 49°C.
A 1L flask is filled with 0.25 mol N2and 0.65 mol H2 at 20 oC. These gases react to make NH3, heating up the flask to a temperature of 45 oC.
The double-replacement reaction between silver-nitrate and sodium bromide produces silver bromide, a component of photographic film.
Suppose that 23.2 mL of 0.410 M sodium chloride is mixed to 23.2 mL of 0.339 M silver nitrate. Determine how many moles of silver chloride would precipitate?
What is the percent by mass of NaHCO3 in a solution containing 60 g of NaHCO3 dissolved in 600 mL of H2O?
1.0 mol of CaCN2 and 1.0 mole of water are mixed together: CaCN2 + 3 H2O → CaCO3 + 2 NH3 How much NH3 could be produced?
Determine water solubility under normal atmospheric conditions (assuming that Carbon dioxide obeys Henry's law?)
The speed needed to escape the pull of Earth's gravity is 11.3 km/s. What is this speed in mi/h.
Use a drawing program to draw a beaker.
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