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Calculate the weight of precursor salt needed to make 500 ml of a 2 M aqueous solution of the metal ion from each salt.
Gd(NO3)3·6H2O
Y(NO3)3·6H2O
FeCl3·6H2O
of 2.60 cm^2.if solar radition is 1150 W/m^2, how many photons strike the leaf every second.
The reversible chemical reaction has the following equilibrium constant: Kc=[C][D]/[A][B]=7.0 Initially, only A and B are present, each at 2.00 M .
A certain radiation has a wavelength of 474 nm. What is the energy, in joules, of (a) one photon
how much heat is released when 75.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 40.67 kJ/mol
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced? (L)
why would the chemiluminescence be more pronounced than with the flask stoppered? Why is the chemiluminescence even more pronounced with the ferricyanide/hydrogen peroxide mixture?
Why is it necessary to first "process" the broccoli before preparing the test sample? What factors are affected that will adversely influence
Sodium fluoride is added to many municipal water supplies to reduce tooth decay. Calculate the pH of a 0.00304 M solution of NaF
Calculate the final temperature of 32 mL of ethanol initially at 11 degrees C upon absorption of 562 J of heat.
when 2.0g of an electolyte was dissolved in 25.0g water, the resulting solution was found to have a molairy of 0.815M and a molality of 0.800m. a) find the molecular weight of the electolyte.
What is the positional entropy at absolute zero for two moles of CF3Cl?
a 35 mL sample of NaOH solution is titrated to an endpoint by 14.76 mL 0.4122M HBr solutio. what is the molarity of the NaOH solution?
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