Answer:
this can helps you know the answer
The empirical formula would be and the molecular formula would be
<h3>Empirical and molecular formula</h3>
From the illustration:
C = 40.6 g H = 5.1 g O = 54.2 g
Divide each element by its molar weight:
C = 40.6/12 = 3.4 H = 5.1/1 = 5.1 O = 54.2/16 = 3.4
Divide by the smallest:
C = 3.4/3.4 = 1 H = 5.1/3.4 = 1.5 O = 3.4/3.4 = 1
Thus, the empirical formula is
To find the molecular formula:
[ ]n = molecular formula
where n = molar mass/empirical formula mass
Empirical formula mass = 24 + 3 + 32 = 59
n = 118.084/59 = 2
Thus, the molecular formula is which is more or less the same as the empirical formula.
More on empirical formula can be found here: brainly.com/question/14044066
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<u>Answer:</u> The mass percent of water in the hydrated sample is 21.5 %
<u>Explanation:</u>
To calculate the mass percentage of water in the hydrated sample, we use the equation:
We are given:
Mass of hydrated sample = 2.00 g
Mass of water = [2.000 - 1.570]g = 0.430 g
Putting values in above equation, we get:
Hence, the mass percent of water in the hydrated sample is 21.5 %
Answer:
Arrhenius
H, H₃O⁺
OH, OH⁻
Explanation:
The earliest and simplest definition of acids and bases was suggested by <u>Arrhenius</u>. He/They defined an acid as a substance with <u>hydrogen</u> in its formula that dissociates in water to yield <u>H₃O⁺ </u>and a base as a substance with <u>OH</u> in its formula that dissociates in water to yield<u> OH⁻</u>.
Acid:
An acid is the substance that sour in taste and turns the color of litmus paper from blue to red.
pH of acid is less than seven.
Base:
An acid is the substance that bitter in taste and turns the color of litmus paper from red to blue.
The pH of base is 7-14.
Arrhenius gives the simplest definition of acid and base.
Arrhenius acid:
A substance that increase the concentration of hydronium ion in solution is called acid.
HNO₃ → H⁺ + NO₃⁻
(H₂O)
Arrhenius base:
A substance that increase the concentration of OH⁻ ion in solution is called base.
KOH → K⁺ + OH⁻
Answer:
b: LEADS
Explanation:
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