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Electrons with a maximum KE of 3.00 eV are ejected from a metal surface by ultraviolet radiation of wavelengh 150 nm. Determine the work function of the metal and the threshold wavelength of the metal
some physical properties of water are shown below.freezing point 0.00degcboiling
gaseous sulfur trioxide can be catalytically decomposed by flowing the gas down a heated tube. the reaction depends on
The wedge is connected to a pendulum and swings through an arc and hits the sample at the bottom of the arc. The sample breaks and the wedge continues its swing to a height of 0.5 m. The energy required to break the sample is closest to
how to calculate mole fractions of two sustances given their weight percentages ,grams
When 0.500 mol of N2O4 gas is placed in a 2.50 L reaction vessel and heated to a set temperature, 65.3% of the N2O4 decomposes. Calculate Kc for the decomposition rxn.
What formula of the percipitate formed? and what do you observe upon the addition of dilute HNO3 and what equillibrium has been disturbed? would you expect lead chloride to dissolve in dilute HNO3? Explain
How much water is needed? a.)10mL HCl; 10mL water b.)5mL HCl; 5mL water c.)20mL HCl; 10mL water d.)5mL HCl; 10mL water
If One gram (1.5 g) of glyceryl trioleate is completely hydrogenated.How many grams of hydrogen was used in the process.
How many liters of water vapor are produced when 21.7g of NH4NO3 decomposes. b.) How many grams of NH4NO3 are needed to produce 16.0L of oxygen
Identify each half reaction as oxidation or reduction; mark which reaction occurs in anode and which in cathode. Write the chemical equation describing the spontaneous cell reaction (The overall reaction)
How many different tripeptides can be made from two molecules of glycine and one molecule of histidine
solid silver nitrate is added to a solution that is 0.0010 m each in nacl nabr and nai. for agi ksp 1.5x10-16 for agbr
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