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Question- Calculate the wavelength of a photon of light emitted from a hydrogen atom when an electron falls from n = 3 to n = 1.
Mention all the steps and procedure to determine the correct value
a compound contains c h and s. elemental analysis performed on 172.5mg sample produced 299.0mg co2 and 163.2mg h2o.
Sulfuric acid is mixed with aqueous sodium hydroxide to produce water and sodium sulfate. Liquid C6H12 is burned in air.
When 50 mL of 2M HCl(aq) is added to 50 mL of 2M NH3(aq), how much NH4Cl is formed?
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions.
If 5.23 moles of an ideal gas has a pressure of 4.03 atm, and a volume of 72.61L, what is the temperature of the sample. (Please write out the formula used completely)
The combination reaction between hydrogen with oxygen generates tremendous amount of heat. Depict a reaction profile for the reaction and explain whether it is exothermic or endothermic.
For example a diene is reacting with HBr producing a 1, 2 and a 1, 4 product. Under kinetic conditions which one is the major product and why. Under thermodynamic conditions which one is the most important product and why
2NOCl(g) → 2NO(g) + Cl2(g) ,At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr.
The initial DO of the mix is 9.0 mg/L. After 5 days, the DO is 4.0 mg/L. After a long period of time, the DO is 2.0 mg/L, and it no longer seems to be dropping. Assume nitrification has been inhibited so the only BOD being measured is carbonaceous..
after balancing of the equation for the reaction under basic conditionsbi2o3s ocl-aq --gt cl-aq bio3-aqwhat is the
If a given element has a mass that is 5.81 times that oc 12 C how do I figure out the mass and the element. Do I just times 5.81 times 12.0107? Therefore it is Ga
the combustion of a 0.519 g sample of the compound yields 1.24 g of CO2 and 0.255 g of H2O. What is the empirical formula of the compound?
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