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In the explosion of a hydrogen-filled balloon, .5 grams of hydrogen reacted with 4.0 grams of oxygen to form how many grams of water vapor? (Water vapor is the only product.)
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
If 4.00 mL of 0.200 M NaOH are added to 1L of 0.100m Calcium chloride will a precipitate form. What about 20mL
Calculate the volume of oxygen required to burn 5.00L of propane gas, C3H8 to produce carbon dioxide and water, if the volumes of both the propane
What mass of precipitate will form if 1.50L of concentrated Pb(ClO3)2 is mixed with 0.250L of 0.290 M Nal?
Draw the initiation step, one propagation step, and the disproportionation-termination step for the chain-growth polymerization of vinylidene difluoride (1,1-difluoroethene).
The Henry's law constant for N2 in water at 37 °C is 8.2 × 10-7 M/mm Hg. What is the equilibrium concentration of N2 in water when the partial pressure of N2 is 605 mm Hg?
You have 250.0 mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40?
What is the value of q when 0.0209 g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol.
if the volume of the gaseous reactants and products in the equation 2c2h6nbsp 7o2regnbsp4co2nbsp 6h2o are measured at 1
Table salt, NaCl(S), and sugar, C12H22O11 (s), are accidentally mixed. A 4.50-g sample is burned and 2.90 g of CO2 (g) is produced. What was the mass percentage of the table salt in the mixture
Calculate the heat that must be supplied to 0.104g of Ne(g) at 0.250 atm to raise its temperature from 22.0 degree Celsius to 60.0 degree Celsius at
In spectroscopy, the ratio of the intensity of radiation that passes through (I) the sample and the intensity of the radiation (Io) that is directed at the sample being analysed is called
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