4. Describe what happens when:

1 answer:

lina2011 [118]3 years ago

3 0

When two plates carrying oceanic crust collides, islands and volcanoes are formed.

When two plates carrying continental crust collide, it makes mountain ranges and valleys.

When a plate carrying oceanic crust collided with a plate carrying continental crust collides, the oceanic plate subsides under the continental one due to the density of the two, and makes trenches and mid-ocean ridges.

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What are deltaTb and deltaTf for an aqueous solution that is 1.5g nacl in 0.250kg h2o? Given Kb=0.51 C/m and kr=1.86 C/m

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$\Delta T_b = I \times K_b \times m$ {i- vant hoff’s constant ; Kb- constant ; m molarity }

M = no. of moles of the solute present in one kg of solution

Let the weight of amount of solute be “w” and its molecular mass be “M”

Let the mass of the solvent in the given question be “x”

$\Delta T_b = I \times K_b \times (w/M)/ x$

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The pka of hf is 3.2 determine the pkb of hf?

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Well, first we must remember that

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