Engineering Design II Worksheet Part One: Comparing the Solutions
1. Describe the two solutions provided.
2. Complete the table to compare the cost, safety, reliability, and aesthetics as well as possible social,
cultural, and environmental impacts.
Golden Rice
Vitamin A Supplements
A low cost
Cost
Safety
Reliability
unreliable
Accessibility
Social and Cultural Impacts
Environmental Impacts

c. is the answer

by love gaming

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

answerlinnaeus;