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A physics student wants to cool a glass of Diet Cola (mostly water), initially at 27°C, byadding ice initially at -18°C. If there is 250g of Diet Cola in the glass, how much ice must theyadd so that the final temperature will be 0°C?
a student is trying to get a better catalyst for the h2o gas shift reaction . the feed to the reactornbsp 3 mol carbon
at a particular temperature and a0 2.00 x 10-2 concentration versus time data were collected for this reaction and a
The ionization constant for the weak acid HA is 4.0 x 10^-8. Calculate the equilibrium concentration of H+, A- and HA in a 0.050 M solution of the acid.
Calculate the % ionization of nitrous acid (HNO2) in a solution that is 0.222M in nitrous acid and 0.278M in potassium nitrite (KNO2). Ka for nitrous acid= 4.50 times 10^-4
At 25 degrees C, the standard enthalpy of formation of KCl(s) is -435.87 kJ/mol. When one moles of KCl(s) is formed by reacting potassium vapor and chlorine gas at 25 degrees C, the standard enthalpy of reaction is -525.86 kJ/mol.
Volume of NaOH dispensed (mL) A) 2 ml B) 2.25 ml C)2.25 ml. Moles of NaOH dispensed. Molar concentration of the acid (moles/L)
note that the integrals for some of the resonances in the 1h nmr spectrum are higher than they should be due to the
Help me understand specifically why the dissociated phosphate ion would prefer to bond with cations like Al and Zn. I think I know why but help me better understand.
Permanganate ion will oxidize Cr3+ in acidic solution to produce Mn2+ and what other product. The answer is dichromate, but why.
Determine the molar solubility of BaF2 in a solution containing 0.0750 M LiF. The Ksp for BaF2 is 2.45E-5.
The complete conversion of 2-phenylacetic acid to ethyl-2-phenylacetate in this experiment is the result of. Ethanol being in excess relative to 2-phenylacetic acid
A certain copper ore contains 2.34% of Cu2S by mass, and the remainder of the ore contains no copper. In a particular year, a single open-air smelt furnace heated 26000 tons of this ore.
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