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Question- A particular monochromatic light source emits light with a frequency of 607 THz. What is the wavelength of the light emitted?
Write the complete solution in short and simple way
Problem- You need to produce a buffer solution that has a pH of 5.16. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this so..
Calculate the sulfide ion concentration that is required to just start precipitation of CoS from a solution that is 0.10 M in Co2+. For CoS : Ksp = 4 x 10-21
a 3.20 l sample of neon at 4.57 atm is added to a 11.0 l cylinderthat contains argon. if the pressure in the cylinder
Problem- You need to produce a buffer solution that has a pH of 5.22. You already have a solution that contains 10. mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this s..
To convert from the volume by percent of a gas to the mole fraction of a gas (i.e. problem 35 from chapter 9), why is it that all you have to do is divide the volume percent by 100%
If the extinction coefficient of cobalt (II) ion is 5.0, what would the absorption of the solutioni in 2-a be in a 1.00cm cell
How much helium gas would it take to ?ll a gas balloon with a volume of 1020 cm 3 when the temperature is 39.0? C and the atmospheric pressure is 724 mm Hg? Answer in units of mol.
magnesium carbonate was added to 25cm cubed of 2.0 moldm cubed of nitric acid. they react in the following reaction
Given an aqueous solution in which the [H+]=2.5 x 10^-7, what is the molar hydroxide ion concentrate
It is known that the ^2P terms lies at 670.78nm above the ground state. whcih is 1s^2 2s^1 ^2S. calculate the ionization energy ofthe ground state atom
How much energy (in calories) is needed to heat 17cm^3 of fat from room temperature (25 C) to its melting point (35 C)?
find delta H for the solution of 1g NaOH in water d) find delta H for the solution of 1 mole NaOH in water e) Given the following heats of formation
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