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lutik1710 [3]
3 years ago
10

A 23.8 mL sample of HCl of unknown concentration is neutralized by 5.45 mL of 0.331 M Ca(OH)2. What is the concentration of the

HCl solution?
(The answer is 0.152, but I need an explanation/steps to get that answer)
Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
8 0
A becuase that is the one that is also b becuase a and c
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Answer:

Explanation:

Since it first order, we use order rate equation

In ( \frac{A1}{A0}) = -kt where A1 is the final quality = 0.8 (80%), A0 is the initial quality = 1 ( 100%)

also, t half life = \frac{In2}{k} where k is rate constant

k = \frac{In 2}{45 days} = 0.0154

In ( \frac{0.8}{1}) = - 0.0154 t

-0.223 / -0.0154 = t

t = 14.49 approx 14.5 days from the date the yogurt was packaged

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3 years ago
What atoms are in Au(NO2)2​
Fiesta28 [93]
Au, N, O ( give me brainliest please)
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You have two solutions, both with a concentration of 0.1M. Solution A contains a weak acid with a pKa of 5. The pH of solution A
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Explanation:

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3 0
3 years ago
The poh of a solution is 9.32. calculate the hydrogen ion concentration of the solution.
natima [27]
PH+pOH=14
pOH=9.32
pH=14-pOH=14-9.32=4.68
pH=4.68

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4 0
3 years ago
What is the molar mass of CuCIO3
Genrish500 [490]
<h3>Answer:</h3>

147.05 g/mol

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table
<h3>Explanation:</h3>

<u>Step 1: Define</u>

CuClO₃

<u>Step 2: Find MM</u>

Molar Mass of Cu - 63.55 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CuClO₃ - 63.55 + 35.45 + 3(16.00) = 147.05 g/mol

5 0
2 years ago
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