Question 2 (2 points) In part I of the experiment, a student adds 11.2 mL 7.51 M nitric acid to 0.6464 g
copper turnings. What volume of 4.09 Msodium hydroxide would be required in Part
Il to neutralize the acid, assuming none of the nitric acid in consumed in Part I? Give
your answer to one decimal place.
Your
Answer
Question 3 (2 points)
In Part 1, 0.7355 g copper turnings (MW: 63.546 g. mol-1) are reacted with excess
nitric acid. Assuming that the copper is completely converted into copper(II) sulfate
what mass (in grams) of zinc (MW: 65.38 g. mol-1)
hu

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely. analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?