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Is the average kinetic energy of molecules proportional to the temperature of gas molecules?
The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
How much energy (in calories) is needed to heat 8.0 cm3 of fat from room temperature (25 c ) to its melting point (35 c )?
Presuming that the drug components of something we are experimenting with dissolves entirely when we stir the tablet with 1:1 ethanol/dichloromethane, Explain what would be solid that's left behind
A 15-L flask at 300K contains 6.44g of a mixture of NO2 and N2O4 in equilibrium. What is the total pressure in the flask? (Kp for 2 NO2(g) N2O4(g) is 7.1).
the energy required to melt 1.00 g of ice at 0 degrees celcius is 333 j. if one ice cube has a mass of 62.0 g and a
Which too factors determine whether a collision between two reactant molecules will result in a reaction. select all that apply.
These two solutions will be added together into a beaker to create one solution. Adding them together cause them to dilute each other. Calculated the new molarity of HX. Give your answer to four decimal places.
what is the total volume of gases produced by the combustion of 500g of butane. assume 1 atm, temp 28 degrees C and that water is produced as a gas
a 100 ml stock solution contains 4.1 m na3po4. when 31 ml of the stock solution is diluted to 73 ml how many moles of
Al^3+ is reduced to Al(s) at an electrode. If a current of 2.75 amperes is passed for 36 hours, what mass of Al is deposited at the electrode. Assume 100% current efficiency.
Estimate the approximate concentration of a typical enzyme and the number of the enzyme molecules inside each cell. Make any reasonable assumption that will help you calculate the numbers
The solubility of benzoic ascid in water is 6.80g per 100mL at 100 degrees C and 0.34g per 100mL at 25 degrees C. Calculate the minimum volume needed to dissolver 1.00g of benzoic acid at 100 degrees C.
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