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Question- If 2.42X10^-1 grams of alloy produces 7.130X10^-3 mol of hydrogen gas, how many grams of zinc were in the original alloy?
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For the lead-acid battery with the overall reaction: PbO2(s)+Pb(s)+2HSO4^-(aq)+2H^+->2PbSO4(s)+2H2O(l) what are the oxidation states of lead at these places: Anode : 0 Cathod: +4 fully discharged anode: +2 Could you explain it fully
4.00 mL if 0.100M t-BuCl are mixed with 4.00mL of 0.0100 M NaOH and 2.00 mL of Distilled water. Calculate the initial Molarity of t-BuCl. How many moles of t-BuCl will have reacted when bromophenol blue changes colors
What is the molar mass of the following: a) O2, b) KH2PO4, c) Fe(ClO4)3, d) C4H8O4, e)Ga2(CO3)3, f) KBrO4. Please use significant figures.
Calculate the vapor pressure of Hg at 86 oC (in atm). Hg(l) ? Hg(g) ?Ho = 61.32 kJ and ?So = 98.83 J/K
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when companies sell compressed gas in steel cylinders they usually quote the contents as volume of gas at 1 atm
predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
is believed to follow the mechanism H2O2 + I- ? H2O + IO- fast H2O2 + IO- ? H2O + O2 + I- slow At 25oC, the first step is fast relative to the second step. What is the rate law predicted by this mechanism?
A standard analysis for determining the amount of oxalate ion, C2O42-, in a sample is to precipitate this species as calcium oxalate, which is insoluble in water. Write the net ionic equation for the reaction between sodium oxalate and calcium chl..
a. you are givena cube of silver metal that measures 1.000cm on each edge. the density of silver is 10.5 gcm3. how many
You have a 4 L bottle of sulfuric acid solution. You take 50.0 mL of this H2SO4(aq) solution and titrate it to the endpoint with a 0.10 M NaOH solution. If the volume of NaOH solution needed is 60.0 mL, the concentration of the sulfuric acid (H2SO..
1.620g of naphthalene is completely burned in bomb calorimeterand a temperature increase of 8.48 c is noted. if the
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