A researcher isolated 10 g of a Natural Product from a local plant. In an attempt to determine the optical activity of this Natural Product, 3.00 g were dissolved in 5.00mL of solvent and placed into a tube 1.00 cm long. A reading of + 2.22o was recorded. What is the name of the apparatus used by the researcher to obtain the reading? . Write the expression which may be used to calculate the specific rotation of the Natural Product. Write out the Greek names for symbols where necessary
Use the expression given above to calculate the specific rotation of the Natural Product. Include the appropriate units and signs in your response​

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

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