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How many milliliters of 0.280M Na2S2O3 solution are needed to titrate 2.396 g of I2 according to the equation below?I2+2SO3 2- ----> S4O6 2- + 2I-
Describe the paradox and explain how modern genetic discoveries have helped resolve this paradox. In your explanation, be sure to include a real biological (genetic) mechanism, summarize how the mechanism works and why it (partially) resolves this..
multiple choice questions in nuclear chemistry.1. magnesium-28 decays via beta emission which equation represents the
The four major attractive forces between particles are ionic bonds, dipole-dipole attractions, hydrogen bonds, and dispersion forces. Consider the compounds below
Calculating Kc, Given the amount of reactant in grams in a container at a temperature and amount produced in moles, calculate Kc:
Which of the following will change the equilibrium constant? a. changing temperature, b. nothing changes the value of keq, c.varying the ititial concentration of reactants, d. varying the initial concentration of products, e. changing the volume o..
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
when water freezes its volume is increased by one-eleventh. in other words the volume of ice equals the sum of the
What volume of gas should you collect at 25 degree celsius and 1.00 atm in order to achieve the desired pressure in the cylinder?
How many moles of chloride ions are there?
In the Haber process for the production of ammonia, N2(g) + 3H2(g) ---> 2NH3(g) what is the relationship between the rate of production of ammonia and the rate of consumption of hydrogen?
How many moles of atoms are in each of the following? 4.1*10^24 Pb atoms ,2.15*10^22 He atoms
you have 500 ml of a buffer solution containing .2 m ch3cooh and .3 m ch3coona. what will the ph of this solution be
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