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How do I determine how much energy is needed to move an electron from n1 to n2 and n3? What is the formula
a voltaic cell is based on the reactionsns i2 s --gt sn2 aq 2i- aq. under standard conditions what is the maximum
Calculate the boiling point when 752 grams of ethylene glycol, C2H6O2, is dissolved in 3 kilograms of water.
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Find the activity coefficient of H+ in a solution containing 0.010 M HCl plus 0.040 M KClO4
Describe the preparation of 0.250 L of 50.0 mM lactate buffer, pH 4.5 using a 0.5 M solution of lactic acid and 0.5 M solution of sodium lactate. pka=3.9
How many millliters of 0.750 M H3PO4 are required to react with 250. mL of 0.150 M Ba(OH)2 if the products are barium phosphate and water
a solid block of exactly 100.0 cm has a mass of 153.6g. Determine its density. Will the block sink or float on water.
if a raindrop weighs 60. mg on average and 5.1 105 raindrops fall on a lawn every minute what mass in kg of rain falls
A sample of helium gas is at a temperature of 100 K. If both the volume and pressure each double what is the final kelvin
A 160.0 L helium tank contains pure helium at a pressure of 1870 psi and a temperature of 298 K. How many 3.5 L helium balloons can be filled from the tank
Limestone (CaCO3) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite
naoh co2 - na2co3 h2o.if the average human body discharges 716 g of co2 per day how much naoh is needed each day for
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