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Throughout the photosynthetic activity of algae the pH of the water is 10.0. Compute CO2, HCO3, CO3(2-), and OH- and the weight of biomass, CH2O produced. Presume no input of atmospheric CO2.
Phosphorus-32 has a half-life of 14.0 days. Starting with 2.00g of P^32, how many grams will remain after 70.0 days? Express your answer numerically in grams.
The first steps in the radioactive decay of 257 Uuh involves the rapid and successive emission of 2 alpha particles. [Note: Uuh is the symbol for ununhexium, which is element number 116.]
a gas cylinder containing 6.38 mol of neon has pressure of 491mmhg at 295k. if 3.22mol helieum is added at constant
Calculate pH of saturated solution of dicalcium phosphate (CaHPO4) in water if its solubility is 3.16x10-4 m. How much solubility of CaHPO4 will change when 1.0x10-3 m MgCl2 is added to the same saturated solution of dicalcium phosphate?
This compund has been measured to be 68.47%C and 5.47%H. The rest is oxygen. What is the empirical formula? Specifically, how do you determine O
For the elementary processes whose equations are given below, determine whether each is unimolecular or bimolecular and determine the rate law for each process. Pick the choice which is correct.
you pour 1 liter of water into a thermally insulated electrically heated teapot which you then plug in. how long will
Explain the standard enthalpy change for the reaction that represents breaking all the bonds in gaseous benzene, C6H6
an insulated container holds 475g of molten indium (liquid) at a temperature of 276 C. if 511g of solid indium are warmed to the melting point (157 C) and than dropped into molten indium, the system comes to thermal equilibrium at the temperature ..
The mass spectrum of an organic compound shows the relative abundances of M to be 58.07% and M 1 to be 8.165%. Assuming the peaks are caused by 12C and 13C isotopes
What pressure will the sample have if the volume changes to 268 mL while the temperature is increased to 815 K?
How many grams of CaCl2 are needed to make 364.8 g of a solution that is 37.5% (m/m) calcium chloride in water? (Note that m/m has the same meaning as w/w.)
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