3 years ago

WHAT IS PH????

Chemistry

1 answer:

andriy [413]3 years ago

7 0

PH INCLUDES ALL OF THE STATEMENT AND IT IS A SCALE WHICH CHECK THE ACIDIC AND BASIC BEHAVIOR OF SUBSTANCE OR SOLUTION

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vampirchik [111]

I need the same answer

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2 years ago

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Solid sodium chloride is formed by the reaction of chlorine gas and solid sodium . write a balanced chemical equation for this r

LuckyWell [14K]

There are no states in the picture, but Na should have a "(s)" after it, and Cl2 should have a "(g)" after it. NaCl should have an "(s)". Chlorine is a diatomic element so it has a "2" subscript on it.

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3 years ago

Calculate the mass of 12.3 moles of MgSO4.

Afina-wow [57]

Answer:

614 034 kg

Explanation:

n = m/Mm

m = n * Mm

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2 years ago

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Which of the Following Will result in increasing temperature of s gas

siniylev [52]

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3 years ago

Amphetamine (C9H13N) is a weak base with a pKb of 4.2.

QveST [7]

Weak base: [OH⁻] = √Kb.C

pKb = 4.2

$\tt Kb=10^{-4.2}$

c = concentration

MM Amphetamine (C9H13N) = 135.21 g/mol

c = 215 mg/L = (0.215 g : 135,21 g/mol) / L = 0.00159 mol/L = 1.59 x 10⁻³ mol/L

$\tt [OH^-]=\sqrt{10^{-4.2}\times 1.59\times 10^{-3}}=3.17\times 10^{-4}$

pOH = 4 - log 3.17

pH = 14 - (4 - log 3.17)

pH = 10 + log 3.17 = 10.50

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2 years ago