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Factors Affecting Photosynthesis

For the given...

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For the given reaction P4+5O2 _ p4O10 if 31g of p4 is reacted with excess of oxygen the parentage yield is 60% the amount of product formed is

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Q. Phosphoric acid (

H_{3} P O_{4}

) is prepared in a two-step process.

P_{4} + 5 O_{2} \to P_{4} O_{10}

P_{4} O_{10} + 6 H_{2} O \to 4 H_{3} P O_{4}

186 g of phosphorus is made to react with excess oxygen which forms

P_{4} O_{10}

that has a 60 % yield. In the second reaction, 80% yield of

H_{3} P O_{4}

is obtained. The mass of

H_{3} P O_{4}

produced is:
(Molar mass of phosphorous = 31 g/mol)

Q. Which of the following statements is/are wrong for the following reactions?

P_{4} + 5 O_{2} \to P_{4} O_{10}

P_{4} + 3 O_{2} \to P_{4} O_{6}

1.24

P_{4}

8.0

O_{2}

.

Q. In a particular experiment,

310 g

of phosphorous (

P_{4}

) reacted with excess of oxygen to form

P_{4} O_{10}

in 75% yield. Then

P_{4} O_{10}

formed reacted with

54

g of water to give

H_{3} P O_{4} .

H_{3} P O_{4}

obtained (in gm) is :
(Consider only two places after decimal for calculation)

Q. Phosphoric acid

(H_{3} P O_{4})

is prepared in a two-step process:
(1)

P_{4} + 5 O_{2} \to P_{4} O_{10}

P_{4} O_{10} + 6 H_{2} O \to 4 H_{3} P O_{4}

62 g

of phosphorus is made to react with excess oxygen to form

P_{4} O_{10}

with 85 % yield. In step (2), the yield of

H_{3} P O_{4}

obtained is 90 %. Calculate the mass of

H_{3} P O_{4}

Q. What is the equilibrium expression for the reaction?

P_{4 (s)} + 5 O_{2 (s)} ⇌ {P_{4} O}_{10 (s)}

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Factors Affecting Photosynthesis

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