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How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
A lead fishing weight with a mass of 68 g absorbs 146 cal of heat. If its initial temperature is 56°C, what is its final temperature.
Give the number of atoms of the specified element in a formula unit of each of the following compounds, and calculate the molecular (formula) mass
Determine the equilibrium concentrations - what are the new equilibrium concentrations of all species.
calculate the mass in grams of NaCl Present in each of the following solution A. 11.5 g Of 6.25 % NaCl Solution B. 6.25 g of 11.5 % NaCl solution
a piece of gold jewelry that weighs 9.35 g and has a volume of 0.654 cm3. The density of pure gold is 19.3 g/cm3 and the density of pure silver is 10.5 g/cm3.
A weak acid with a starting concentration is 12.5% dissociated. a) Calculate the [H3O+], pH, [OH-] and pOH of the solution. ([OH-] = 1.1 × 10-13 M, pOH = 12.96
Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot.
If 6.46 L of gaseous ethanol reacts with 16.1 L O2, what is the maximum volume of gaseous carbon dioxde produced
Determining System Equilibrium, A one-litre cylinder at 458'C is found to contain 0.36 moles of HI (g), 0.15 moles of I 2(g), and 0.18 moles of H2(g). Is this system at equilibrium?
What is the change in enthalpy when 18.4 g of steam at 100?C is converted to liquid water at the same temperature and pressure? The heat of vaporization of water is 40.7 kJ/mole. Answer in units of kJ.
How Much Chlorine Must be Added to a Swimming Pool? A solution used to chlorinate a home swimming pool contains 7% chlorine by mass. An ideal chlorine level for the pool is one part per million (think of 1 ppm as being 1 g chlorine per million gra..
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