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Question: Dilute sulfuric acid (19% acid, the rest water) is required for activating car batteries. A tank of weak acid (12.5% concentrate, the rest water) is available. If 450 lb of 78% concentrate acid is added to the tank to get the required 19% acid, how much of the 19% acid is now available?
calculate the Henry's law constant for oxgen solubility in freshwater undr these conditions
Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest record temperature in the experiment.
Ethylene glycol is used as automobile antifreeze. 6.38g og this compound contains 2.47g of carbon and 0.620g of hydrogen. The rest is oxygen. The molar mass is 62.0g/mole.
Question- An unknown compound contains only C, H, and O. Combustion of 8.20 g of this compound produced 16.4 g of CO2 and 6.71 g of H2O. What is the empirical formula of the unknown compound
The combustion of how many moles of ethane C2H6 would be required to heat 587g of water from 25 degree to 78 degree. ( assume liquid water is formed during combustion.)
On the basis of half-cell potential of Cu/Zn, define which electrode will increase in mass in the experiment and why
Estimate the isoelectric point of a Ser-His dipeptide. Explain why this value is only an estimate
The professed "D-line" of the sodium emission spectrum has a wavelength of 5893 Angstroms. Presuming the emission is due to an electron transition between two consecutive energy levels, compute the energy levels involved
A sample that has the formula MgCl2.6H2O loses a portion of water when it is dried in an oven but undergoes no other changes. If the student started with 10.000 g of the compound, and ends with a residue that weighs 7.342 g whats the formula of th..
What properties are necessary and desirable for a solvent in order that it is well suited for recrystallizing a particular organic compound?
Problem- What is the relative stability of alpha and beta-d-glucose pentaacetate. how can you account for the product mixtures that form under conditions of acidic and basic catalysis in the synthesis of alfa and beta D-glucose pentaacetate
The activation energy for the isomerization of cyclopropane topropene is 274 kJ/mol. By what factor does the rate of this reaction increase as the temperature rises from 260 to 286oC
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