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What is the calculated precision for your measurement of the volume delivered by the pipet and what is the suggested limit of precision for a 10ml volumetric pipet? How does these two values compare?
when gaseous hf reacts with vcl33 crystals an exchange reaction occurs forming vf3 and a second product that is a gas.
Consider the following reaction to answer the questions below. 2H2S (g) + SO2 (g) ?? 3S (s) + 2H2O (g) ?H° = -145 kJ. At what temperature would the forward reaction become non-spontaneous
What is the sum of the coefficients in the balanced equation that represents the complete combustion of the relatively new
What % of the bromide ions remain in solution, i.e., unprecipitated, just before silver chloride begins to precipitate? Ksp for AgCl=1.8x10^-10, Ksp for AgBr=3.3x10^-13
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
What volume of 0.955 M HCl, in milliliters, is required to titrate 2.152 g of Na2CO3 to the equivalence point?Na2CO3(aq) + 2HCl(aq) ---> H2O(l) + CO2(g) + 2NaCl(aq)
Balance the overall chemical equation. Determine the moles of limiting reactant and then moles of product. Convert moles of product to mass of product - this is the theoretical mass.
A chemical reaction has been the subject of intense study, and a rate law, rate = k[A][B]2, was developed which summarised the mechanistic findings. Which one of the following changes to the system will not cause an increase in the rate constant u..
Question- An unknown compound contains only C, H, and O. Combustion of 8.20 g of this compound produced 16.4 g of CO2 and 6.71 g of H2O. What is the empirical formula of the unknown compound
Definition for electrophilic, transition state and Markovnik , electrophilic, transition state
Calculate the ratio of dihydrogen phosphate to hydrogen phosphate in the blood at pH 7.4. The Ka = 6.3 x 10 -8 5. 2.
A 150.0 ml sample of an aqueous solution at 25*C contacins 15.2 mg of an unknown nonelectrolyte compound. if the solution has an osmotic pressure of 8.44 torr, what is the molar mass of the unknown compund
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