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A student removes the thermometer and stirring wire in part b of the experiment to add the naphthalene, and wipes them off, losing .50 mL of cyclohexane. What percent error will this introduce if the original 5.00mL is used in the calcuations?
Suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions of the following substances: CuSO4, Al2(SO4)3, Pb(NO3)2, FeSO4.
A gas expands and does P-V work on the surroundings equal to 345 J. At the same time, it absorbs 191 J of heat from the surroundings. Calculate the change in energy of the gas.
How much heat is produced in burning 9 mol of ethylene (C2H4) under standard conditions if reactants and products are brought to 298K and H2O (l) is formed
14- Solid titanium oxide (TiO2) reacts with solid carbon (C) to produce solid titanium (Ti) and gaseous carbon monoxide (CO). When 14.0 kg of C is allowed to react with 44.0 kg of TiO2 7.5 kg of Ti is produced. what is the limiting reactant. what i..
Make the following assumptions in your calculation; at normal filling conditions, the densities of engine coolant and water are 1.11 g/mL and 0.998 g/mL respectively. Assume that the engine coolant is pure ethylene glycol (HOCH2CH2OH), which is no..
A 23.5g sample of a metal was heated to 63.45 degrees C. When the metal was placed in a constant pressure calorimeter containing 30.0g of water, the temperature of the water rose from 24.73 degrees C to 29.80 degrees C. Calculate the specific heat..
some hypothetical reactions are given as 2 a2dg ---gt 2 a2g d2gnbsp a2b3g ---gt 2 ag 3 bgnbsp ag b2g ---gt ab2g 5 bg
when monitoring the reaction between benzene and 2-chloro-2-methyl-propane using febr3 as the catalyst researchers
2-butene-1-thiols is one component of skunk spray. How whould you synthesize this substance from methyl 2-buenoate? From 1,3-butadiene
The well-preserved remains of a now extinct woolly mammoth is entombed in the permafrost lands of Siberia. Scientists have conducted carbon dating experiments on plant debris found in the stomachs of this mammoth.
25 ml of 0.1002 ha was titrated with 10 ml of 0.1997 naoh ph is 4.46 what is the ka value? and what is the ph at
Show the chemistry involved in dissolving iron(II)hydroxide with a strong sodium cyanide solution.
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