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Explain what is the volume that is occupied by an object having a density of 1.78 g/cm3 and a mass of 1.25 kg?
At constant external pressure (1.2atm), the temperature of 3.25 mol of ideal gas increased from 250K to 305K. Calculate the internal energy change ΔE.
Determine the electron affinity of hydrogen; that is, Delta H for the process H(g) + e- = H-(g). To do so, the bond energy of H2(g)
if the reaction between iron III ion and thiocyanate ion yielded an equilibrium concentration of .15M for each of these ions, what is the equilibrium concentration of the red iron III-thiocyanate complex
Utilize the data given here to compute the values of delta G rxn at 25 degrees Celsius for the reaction described by the equation.
An unknown is believed to be an alcohol because the IR spectrum showed broad absorption at 3200-3500 cm-1 and no absorption in the 1700-1750 cm-1 region.
The visible part of the hydrogen atom spectrum is called the Balmer series (n1 = 2). The violet line has a wavelength of 410.2 nm.
when pure sodium hydroxide is dissolved in water heat is evolved. in a laboratory experiment to measure the molar heat
If the solubility of NaBr at 25 degree C is 14.3 g/100 g H2O, what mass os NaBr can be dissolved in 300 grams of water
Using this equation, determine how many moles are formed for every one mole of KIO3. KIO3 + 5I + 6H ? 3I2 + 3H2O + K B)Using this equation, determine how many moles S2O3 are needed to titrate the number of moles of I2 calculated in A.
The rate is measured at 300 K. To what temperature must the reaction be raised to double the rate? a) 310k b)333k c)353k d)363k e)373k f)412k
1.write down the electron configuration of the b ion using the noble gas core notation?2.what you will expect for the
Potassium hydrogen phthalate (KHP) is utilized as a primary standard acid to accurately determine the molarity of a NaOH solution via a titration. The neutralization reaction between KHP and NaOH is shown in the lab manual.
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