The following question(s) pertain to the charting of NMR spectra. MATCH a term to each description below. Place the letter of the term in the blank to the left of the description. a. TMS
b. high-field or upfield side
c. MHz
d. delta ()
e. low-field or downfield side
f. chemical shift
g. specific absorption
i. When looking at an NMR chart the right-hand part of the chart is the .
ii. The exact place on the chart at which a nucleus absorbs is called its .
iii. The calibration standard for 1H and 13C NMR is:
iv. The NMR charts are calibrated using an arbitrary scale that is divided into units.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2