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What concentration of NO3- results when 605 mL of 0.603 M NaNO3 is mixed with 679 mL of 0.593 M Ca(NO3)2?
Question- A certain weak base has a Kb of 7.90X10^-7. What concentration of this base will produce a pH of 10.38
Energy costs vary greatly with energy source: coal @ $25.00/ton, gasoline @ a pump price of $2.00/gal, and electricity @ $0.1000/kWhr. Conventional practice is to put these on a common basis by expressing
questionconsider the reaction 2nobrg --gtbr2g 2no ga sample of pure nobr at a concentration of 0.200 m is allowed to
What is the energy of a single UV photon and mole of UV photons having a wavelength of 25 nm
A gas occupying a volume of 248 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume.
what concentration in ppm would it constitute? The effective volume of the earth's atmosphere is about 4.2 billion km^3, and take the average pressure to be 550 mm Hg and the average temperature to be -10 degrees C. The molar mass of air is 29 g/m..
Question- A 16.15L tank contains 932 Torr of CF4 at 46C. 27.2g of CO2 are added. What is the density of the gas mixture
For the point group C3v, does the coefficient for 2C3 operation indicate that you can rotate it twice in one direction 120 degrees so that you end up right where you started
What is its de Broglie wavelength
The discovery of hafnium, element number 72, provided a controversial episode in chemistry. G. Urbain, a French chemist, claimed in 1911 to have isolated an element number 72 from a sample of rare earth (elements 58-71) compounds. However, Niels B..
The normal boiling point of bromine is 58.8°C. Given that the vapor pressure of methanol is 75.0 torr at 2.5°C, calculate the molar enthalpy of vaporization of bromine.
If 40.0 g of methane (CH4) is confined to 2.50 x10^3 mL at 200 degrees celsius, what pressure in atm does it exert
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