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2KHCO3(s) K2CO3(s) + CO2(g) + H2O(l)
How many moles of potassium carbonate will be produced if 311 g of potassium hydrogen carbonate are heated?
A solution that contains 87.2g of an unknown compound in 392.4g of water freezes at -8.00 degrees C. Calculate the molar mass(in units of g/mol) of the solute. Kf of water is 1.86 degrees C/m.
what is the analytical molarity of fecl3 in a solution prepared by dissolving 1.340 g of fecl3 in water and diluting to
portion of that solution is diluted by adding 167 mL of water. What is the final concentration? Assume the volumes are additive.
Calculate the concentrations of each ion present in a solution that results from mixing 49.6 mL of a 0.20M NaClO3(aq) solution with 25.3 mL of a .20 M Na2SO4(aq). Assume that the volumes are additive.
What is the molar mass of a compound if one mole of the compound contains two moles of oxygen atoms, 6.022 × 1024 hydrogen atoms, and 60.05 grams of carbon?
Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation.
How do we know the oxidation of camphor leads to a different product if they look/smell the same in the end as it did in the beginning?
The number of moles in 15.39 g of C2H6O (molar mass =46.1 g/mol) is ,You transfer a sample of gas at 17 degrees C from a volume of 4.71 L and 1.10 atm to a container at 37 degrees C.
If a solution contains 0.60 mol of OH^-, how many moles of H^+ would be required to reach the equivalence point in a titration. Express your answer using two significant figures.
potassium fluoride is very soluble in glacial acetic acid and the solutions have a number of unusual properties. in an
Suppose you are measuring the mass of a sample using a balance that employs a standard mass of density dw = 8.0 g/mL. a) What is the buoyancy correction (m/m\'), if the sample density is less than 8.0 g/mL?
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of lead is 715.0 kJ/mol.
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