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write a symbol for each of the following: a)proton b)gamma ray c)positron d)barium-131 e)palladium-103
How many g of NaCl are required to prepare 250.0 mL of a 0.3440 M solution of NaCl in water?
Assume complete combustion occurs. Determine the dew point temperature of the flue gas.
How many moles of KHP were weighed out? How many moles of NaOH were required to neutralize the KHP that was weighed out?
5 moles of sodium bromide NaBr is mixed with 3 mole of butanol CH3CH2CH2OH to yield 99 g of bromobutane CH3CH2CH2CH2Br
After the reaction was complete, the solid residue, consisting of KNO2 and the original impurities, had a mass of 24.1 g. Assuming that only the potassium nitrate had decomposed, how many grams of KNO3 were present in the original sample? Answer i..
If the process occurs adiabatically and at constant (atmospheric) pressure (a) what is the mass of water that solidifies and (b) what is the change in entropy of the system?
What is the difference between an amino acid and a protein? How does this difference in structure affect biological function?
What is the empirical formula of a hydrocarbon which produces 2.703 g CO2 and 1.108 g H2O
Which molecule: water or ethanol is "more" polar? (By "more polar" I mean which molecule will have a larger net dipole moment
A CONTAINER HOLDS 7.62L OF N2O(g) at 4.06atm in equilibrium at 25C with 5.82L of an aqueous solution of N2O(aq).
When separating a solid-solid mixture in lab, do the melting points of the two components have to be 30 degrees apart, like with boiling points, to be considered pure, or is it a different range?
Hydrogen sulfide () is a common and troublesome pollutant in industrial wastewaters. One way to remove is to treat the water with chlorine
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