3 years ago

17. Elements in the periodic table are arranged according to their.

1 answer:

7 0

In the modern periodic table the elements are arranged in order of increasing atomic number.

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Vesnalui [34]

The concentrations : 0.15 M

pH=11.21

<h3>Further explanation</h3>

The ionization of ammonia in water :

NH₃+H₂O⇒NH₄OH

NH₃+H₂O⇒NH₄⁺ + OH⁻

The concentrations of all species present in the solution = 0.15 M

Kb=1.8 x 10⁻⁵

M=0.15

$\tt [OH^-]=\sqrt{Kb.M}\\\\(OH^-]=\sqrt{1.8\times 10^{-5}\times 0.15}\\\\(OH^-]=\sqrt{2.7\times 10^{-6}}=1.64\times 10^{-3}$

$\tt pOH=-log[OH^-]\\\\pOH=3-log~1.64=2.79\\\\pH=14-2.79=11.21$

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3 years ago

juin [17]

250-128 = 122J is reflected

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3 years ago

vichka [17]

This is just addition. Put 2140.56 on top, line up 9.3456 under it appropriately. Doing this will give you the answer: 2149.9056

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3 years ago

Paha777 [63]

Cost because yes its cost

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3 years ago

vampirchik [111]

Answer:

a ecosystem

Explanation:

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4 years ago

17. Elements in the periodic table are arranged according to their.​