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In the qualitative analysis of antimony, please assist with net ionic equations for Sb3+ with thioacetamide, Sb2S3 with NaOH, Sb2S3 with conc. HCL, and SBCl6- with H2C2O4 and thioacetamide.
Which one of the following pairs of gases contains the same number of molecules (a) 16 g of O2 and 14 g of N2 (b) 8 g of O2 and 22 g of CO2 (c) 28 g of N2 and 22 g of CO2 (d) 32 g of O2 and 32 g of N2
If all the energy obtained from burning 1.16 pounds of propane is used to heat water, how many kilograms of water can be heated from 24.8 degrees celsius to 43.6 degrees celsius
What is the identity of the precipitate and what is the change in enthalpy of the reaction per mole of copper? Assume the calorimeter absorbs negligible quantity of heat and the specific heat and density of the solution are that as pure water.
The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation, and electrolysis. How many kilograms of magnesium can be obtained from 4.18 km^3 of seawater
An allosteric enzyme that follws the concerted mechanism (MWC model) has T/R ratio of 300 in the absence of substrate. Suppose that a mutation reversed the ratio.
If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.200 M potassium hydroxide to a phenolphthalein endpoint, what is the molarity of the acid? H2SO4(aq) + 2 KOH(aq) ? K2SO4(aq) + 2 H2O(l) Answer 0.300 M 0.200 M 0.150 M 0.400 M 0.100..
It takes 16.6 min for a 10.0-mL sample of an unknown gas to effuse through a pinhole. A 10.0-mL sample of helium, He, required 5.00 min. What is the molecular weight of the unknown gas
The plot of In P vs. 1/T for a liquid produces a curve with slope -860k. what is the enthalpy of vaporization for the liquid
What is the rate constant for a) a zero order reaction, b) a 1st order reaction, c) a 2nd order reaction, and d) a 1/2 order reaction? All concentrations are expressed in molarity
How much PPP do you need to make 500ml of the solution if you only have 25g and you know that the MW of PPP is 478 g/mole.
sodium hydroxide reacts with sulfuric acid to produce sodium sulfate and water. how many grams of sodium hydroxide are
C2H5OH solution has a density of 1.01 g/mL. Calculate the molarity of the C2H5OH solution
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