Adjust the ph of that solution to a value
Determine the numbers of milliliters of 0.202M NaOH should be added to the 30.0mL of a 0.0233M Salicylic acid (2-hydroxybenzoic acid, MW= 138.12) to adjust the pH of that solution to a value of 3.50?
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What is the empirical formula of the gas when a chemist found that 4.69g sulfur combined with the fluorine to form the 15.81g of a gas.
As a result, the H+ atom is ionized - it breaks into a proton moving with a speed of 1.15*10^3 m/s and an electron moving with a speed of 2.11*10^6 m/s in the opposite direction.
(i) Determine the amount of ice melted and the final temperature if the mass of steam is around 14 g and the mass of ice is around 53 g. (ii) Repeat with steam having mass 1.0 g and ice of mass 53 g.
Calculate the wavelength of radiation required to ionize the hydrogen electron from the n = 2 energy level. Ionization energy is defined as the minimum energy required removing an electron from the ground state (n0) to infinity (n∞).
You win game by pushing buttons so that all lights are off. Do one of given. Prove that if n=6, you can always win game regardless of state of the lights at the starting of game.
2Na + 2H2O ---> 2NaOH + H2 . If 7.2 g of Na undergoes reaction with water and the resulting hydrogen is burned in oxygen to form the water, determine the numbers of grams of water would be formed?
If a 5.327 g sample weighed 4.281 g after dehydration, determine the percentage of CaCO3 in the original hydrated sample when a sample is composed of a mixture of CaCO3 and CuSO4*5H2O. A chemist decided to estimate the mixture by dehydrating i
A tennis ball which is having the 250 mL of air at the 1.25 atm. A tennis star soups it up by injecting 50 mL of air at 1.0 atm into the ball. Calculate the final pressure of the ball in atmospheres, assuming no chance in volume of the bal
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