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It takes 188kJ/mol to eject electrons from a certain metal. What is the minimum frequency of light (nm) that can be used to eject electrons from the surface of this metal via photoelectric effect
Calculate the final hydrogen ion concentration of a solution after 25.0 mL of 0.500 M HCl is treated with 40.0 mL of 0.0500 M Ba(OH)2(aq) and diluted to 100.0 mL.
What is the pOH of a 0.0054 M KOH solution? 2. Rank H3PO4, H2PO4^-, and HPO4^2- in order of increasing acid strength.
A red laser pointer emits light with a wavelength of 660. What is the frequency of this light? 2.What is the energy of one of these photons?
Explain why dimerization of the cyclopentadiene is the side reaction and discuss how to avoid this side reaction.
We often hear the terms organic, natural, and chemical in the media. Organic and natural are usually used to imply that a product is "healthy" and/or "environmentally friendly" while chemical often implies negative implications for health and for ..
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air?
A 100.0 g sample of a metal M is burned in air to produce 103.7 g of its oxide with the formula M2O. What is the atomic mass of the metal?
At a certain temperature and pressure 2.1 L of H2 reacts with 2.1 L of I2. If all the H2 and I2 are consumed, what volume of HI, at the same temperature and pressure, will be produced?
Calculate the pressure that must be applied in order to increase its density by 0.08 percent.
A student wants to prepare a dilute solution of iron (III) solution, . The student is provided with a stock solution of 0.800 +/- 0.001 M and a 100.00 +/- 0.008 mL volume trick flask since the experiment trquires about 80 mL of the dilute iron (II..
Radiochemical techniques are useful in estimating the solubility product of many compounds. In one experiment, 50.0 mL of a 0.010 M AgNO3
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution. What was the concentration in ppm of silver ions in the original solution?
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