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Find the energy of dismantling of a Helium into protons and neutrons.
Find the energy of dismantling.
mass of Helium 4 = 4,0026 g/mol
Mass of H 1 = 1.0078 g/mol
Mass of n = 1.0087 g/mol
A woman had a heart attack caused by thrombus. the cells immediately downstream from the thrombus were deprived of oxygen and , as a result, increased
If the silver -silver chloride electrode is replaced with a saturated calomel electrode, what is the new cell voltage?
An object weighs 1.2 pounds and has a volume of 14.6 in squared. What is the density of the object. Express the answer in g/mL
What is the buffer-component concentration ratio, [NO2- ]/[HNO2], of a buffer that has a pH of 2.90 ? Ka of HNO2 = 7.1 x 10-4.
natural gas is a mixture of hydrocarbons primarily methane ch4 and ethane c2h6. a typical mitxture might have
Describe the preparation of 1L solution of 0.02M Tris buffer, PH 7.8. Please don't just write numbers.. explain it.
(Carborundum SiC) is usually found in abrasives in grinding whells and is prepared by reaction of sand or SiO2 with the carbon in coke. Are SiC + C->SiC + CO and define how many kilograms of carborundum can be prepared from 153 kg of coke that is ..
calculate the values of ?Ho, ?So, and ?Go for the reaction at a pressure of 1 atm and temperature of 298.15 K. C(graphite) + H2O(g) = CO(g) + H2(g)
A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.
What volume of 0.250 M Na3PO4 is required to precipitate all the lead(II) ions from 180.0 mL of 0.550 M Pb(NO3)2
A sample of gas occuplies a volume of 62.7 mL. As it expands, it does 120.3 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas
why do we use 1.1 equivalentsof bromine solution in the reaction of trans-stilbene with brominein dichloromethane ?
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