3 years ago

What is the value of x in the measure of the angle?

Chemistry

2 answers:

Vlad1618 [11]3 years ago

8 0

It is 14, use inverse operations. 41 = 2x+13

Andrew [12]3 years ago

4 0

The two angles would be both 41 degrees.
$(2x + 13) = 41 \\ 2x = 41 - 13 \\ 2x = 28 \\ x = \frac{28}{2} \\ x = 14$
x in this case would be 14 degrees.

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konstantin123 [22]

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3 years ago

The pH of a saturated solution of a metal hydroxide MOH is 10.15. Calculate the Ksp for this compound.

Airida [17]

Answer:

$Ksp=2.00x10^{-8}$

Explanation:

Hello!

In this case, since the pH of the given metal is 10.15, we can compute the pOH as shown below:

$pOH=14-pH=14-10.15=3.85$

Now, we compute the concentration of hydroxyl ions in solution:

$[OH^-]=10^{-pOH}=10^{-3.95}=1.41x10^{-4}M$

Now, since this hydroxide has the form MOH, we infer the concentration of OH- equals the concentration of M^+ at equilibrium, assuming the following ionization reaction:

$MOH(s)\rightarrow M^+(aq)+OH^-(aq)$