Separation of Pigments from Moringa oleifera Leaves

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What is the main objective of the experiment discussed in this module?

To examine the pigments extracted from Moringa oleifera leaves and their separation (correct)

To compare the pigments found in Moringa oleifera leaves with other leaf types

To analyze the chemical composition of malunggay leaves

To identify the most common pigment found in Moringa oleifera leaves

What is the local name of the Moringa oleifera leaves used in this experiment?

Bawang

Pechay

Malunggay (correct)

Kangkong

What is the primary purpose of using an Erlenmeyer flask in this procedure?

To contain the powder and acetone mixture during swirling (correct)

To filter the powder from the acetone solution

To mix the powder with acetone

To heat the powder at a high temperature

What is the likely reason for decanting the dark green solution into an evaporating dish?

To allow for evaporation of the acetone Signup and view all the answers

What is the purpose of swirling the mixture in the Erlenmeyer flask?

To dissolve the powder in the acetone Signup and view all the answers

What is the likely color of the initial powder?

White or off-white Signup and view all the answers

What is the primary function of the iron stand in the given experiment?

To support the pipette Signup and view all the answers

What is the role of acetone in this procedure?

To dissolve the powder and create a solution Signup and view all the answers

What is the recommended thickness of the sand layer in the column?

2-3 mm Signup and view all the answers

What is the purpose of using sand in the column?

To filter out impurities Signup and view all the answers

What would be the consequence of using a thicker layer of sand than recommended?

Increased pressure on the pipette Signup and view all the answers

What would happen if the pipette was not clamped to the iron stand?

The pipette would fall over Signup and view all the answers

What is the primary concern when handling a TLC plate?

Impurities and skin oil might affect the results Signup and view all the answers

What could be the consequence of impurities and skin oil on a TLC plate?

Unreliable results Signup and view all the answers

Why is it recommended to only touch the margins of a TLC plate?

To prevent contamination of the plate Signup and view all the answers

What type of results can be expected if a TLC plate is contaminated with impurities and skin oil?

Unreliable results Signup and view all the answers

Why is careful handling of a TLC plate important?

To ensure reliable and accurate results Signup and view all the answers

What is the primary advantage of using an organic photovoltaic integrator with three complementary absorption bands?

To enhance the overall efficiency Signup and view all the answers

What is the likely result of using a photovoltaic integrator with only one absorption band?

Decreased efficiency due to reduced absorption range Signup and view all the answers

What is the primary characteristic of an organic photovoltaic integrator?

Organic composition Signup and view all the answers

What is the likely benefit of enhancing the efficiency of organic photovoltaic integrators?

Increased energy output Signup and view all the answers

What is the significance of three complementary absorption bands in an organic photovoltaic integrator?

To broaden the range of wavelengths that can be absorbed Signup and view all the answers