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A 0.204 g sample of a CO3^2- antacid is dissolved with 25.0 mL of a 0.0981 M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 5.83mL of 0.104 M NaOH. a) Calculate the number of moles of base in the antacid. b) Determine the moles of base per gram of antacid in the sample. Express your answer with the correct number of significant figures.
What volume (L) of 0.250M HNO3 is required to neuralize a solution prepared by dissolving 17.5g NaOH in 350mL of water?
Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density of uranium hexafluoride at 62°C at 755 torr.
A solid Silver Group (Anion) unknowon that contains only sodium ion as a catio is acidified and divided into tow portions, to both of which 6 M HC2H3O2
How many grams of Na2CO3 Standard must be used if the titration is expected to require 40 mL of 0.1 M HCl titrant?
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
N2O4(g) + KCl(s) → NOCl(g) + KNO3(s) Find out oxidation number of each and find which one is reduced and which one is oxidized by Using oxidation number concept? Also write net ionic equation and ionic equation.
A gaseous sample of this element is bombarded by photons of various energies (in these same units). Match each photon to the result
How do you interpret the experimental MP for this lab when the theoretical melting point is 82-83 for trans and 81-82 degrees for cis? Does it melt as expected for a mixture of cis and trans isomers?
How much water is needed? a.)10mL HCl; 10mL water b.)5mL HCl; 5mL water c.)20mL HCl; 10mL water d.)5mL HCl; 10mL water
If 26.23mL of potassium permanganate solution is required to titrate 1.041g of ferrous ammonium sulfate hexahydrate, FeSO4(NH4)SO46H2O.
The top stream contains diesel and heating oil. The middle stream contains heating oil and lubricating oil, and the bottom stream contains the solids
What alcohol would be most easily dehydrated. One that is on a long chain or a short chain
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