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A sample of 1.5 g NaWO4 dehydrate is dissolved in 25 mL DI H2O. .75g granulated Zn was added then heated to 70 C. 75 mL of 3M sulfuric acid was then added to consume the Zn then heated to 70 C.
A titration was set up with standard potassium permanganate solution(.020 M). A volume of 17 mL potassium permanganate was need to reach the endpoint.
1) Calculate empirical formula. Please show steps and explain.
Find the fraction of association of 0.100 molar solution of Hydrazoic Acid. Ka = 2.20x 10^-5.
what is the concentration of a household ammonia cleaning solution if 49.90 ml of .5900M HCL is required to neutralize 25.00 ml of the solution?
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case
Therefore the formula is N2O4 Dinitrogen tetraoxide. Recognizing Incorrect Names and Formulas of Explain what is wrong with the name of formula in the second.
1 what polymer is made from the monomer vinylidene chloride?2 what additional polymer is made from this alkene
A chemist places 1.7823 g of Na2SO4 in a 100 mL volumetric flask and adds water to the mark. She then pipets 10 mL of the resulting solution into a 50 mL volumetric flask and adds water to the mark and mixes to make a solution.
Magnesium phosphate precipitates from an aqueous solution. Does the entropy of the system increase or decrease
Draw the skeletal structure of the product or mixture of products that result from the bromination of the given starting material with less than one equivalent of NBS in the presence of peroxides.
Describe two independent methods for determining the atomic mass of an element. Explain how these method are truly independent.
write the equations that illustrate how each pair of compounds can serve as a buffer pair. A) H2CO3 and NaHCO3 (the "carbonate" buffer in blood) B) NaH2PO4 and Na2HPO4
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
What would the concentration (or activity) of Hg2+(aq) be in the solution if equilibrium existed between the water in soil pores, the gas and cinnabar
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