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Does a weak acid have a low molarity? Please explain why if so.
consider the combustion of ethylene c2h4 g 3 o2 g ------gt 2 co2 g 2 h2o g. if the concentration of c2h4 is
A solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph: at the equivalence point and 5 mL past the equivalence point.
Walking fast can consume 5.0 kcal per minute. How many hours of exercise are required to consume 450 kcal, the energy in a large candy bar
what is the pH of laundry water in your washing machine that contains 0.5 mg/L of bleach (hypochlorous acid, HOCl).
when quantifying the properties of any object or event in the environment the measurements are made on one of the four
Find the mathematical relationship that relates energy of a photon emitted as an electron relaxes from a higher energy level to a lower energy level in a hydrogen atom. Use this equation to calculate the wavelength of the photon emitted in units o..
how many moles of Ba(OH)2 are present in 165ml of 0.600M Ba(OH)2.
when 16.8 j was added as heat to a particular ideal gas the volume of the gas changed from 42 cm3 to 87 cm3 while the
What is the change in energy, Delta E, in kilojoules per mole of hydrogen atoms for an electron transition from n=8 to n=2? Express your answer in kilojoules per mole to three significant figures.
calculate the amount of cobalt(II) nitrate hexahydrate [Co(NO3)2 * 6H2O] needed to prepare 50 mL of a 0.15 M cobat(II) nitrate stock
61.0 ml of anbsp solution1.60 m is diluted to a volume of 208 ml. anbsp portion of that solution104-ml is diluted using
A 43.0 g sample of ethylene glycol, HOCH2CH2OH, is dissolved in 540.0 g of water. The vapor pressure of water at 32°C is 35.7 mm Hg. What is the vapor pressure of the water-ethylene glycol solution at 32°C ?
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