Question

Find all the zeroes of the polynomial 8 4 + 8 3 – 18 2 - 20 x – 5, if it is given that zeroes are √5 2 and − √5​

Answer 1

Step-by-step explanation:

Solution

From Graham’s law, we have:

rate of effusion of hydrogen

rate of effusion of oxygen

=

√

1.43

g L

−

1

√

0.0899

g L

−

1

=

1.20

0.300

=

4

1

rate of effusion of hydrogen

Using molar masses:

rate of effusion of hydrogen

rate of effusion of oxygen

=

√

32

g mol

−

1

√

2

mol L

−

1

=

√

16

√

1

=

4

1

rate of effusion of hydrogen

Hydrogen effuses four times as rapidly as oxygen.

Answer 2

Answer:

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