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sammy [17]
2 years ago
9

How many molecules Of H20 are equivalent to 97.2 g H20? (H = 1.008 g/mol, O = 16.00 g/mol)

Chemistry
1 answer:
AleksandrR [38]2 years ago
8 0

Answer:

m(H₂O) = 97,2 g.n(H₂O) = m(H₂O) ÷ M(H₂O).n(H₂O) = 97,2 g ÷ 18

Explanation:

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The ph of a finished water from a water treatment process is 10.74. What amount of .02 n sulfuric acid, in milliliters, is requi
MAVERICK [17]

The pH of water is given to be 10.74.

This means = pOH = 14 - pH = 3.26

pOH = -log[OH-]= 3.26

[OH-] = 0.00055 M / N

The concentration of H2SO4 is given to be = 0.02 N

volume of water = 1 L

So moles of OH- = number of equivalents of OH-

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So number of equivalents of H2SO4 requried = 0.00055

Hence volume of 0.02 N H2SO4 required = Moles / Molarity

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3 years ago
What's a material that contains oxygen and silicon??
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8 0
2 years ago
A hiker seals a plastic bag that contains dried fruit before the climbs a mountain. What will most likely happen to the plastic
romanna [79]

From the ideal gas equation,

PV = nRT

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The pressure and volume are inversely proportional to each other at constant temperature and number of moles.

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As the hiker reaches a height of a mountain, the pressure would decrease which results in the reestablishment of equilibrium between gas molecules thus resulting in pushing of bag outwards.

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Which of the following shows a decrease in entropy?
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Answer: a:6 electrons, b:10electrons, c: 2electrons

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b. 3d, d is l = 2 then 2 x 2 + 1 = 5 sublevels, 5*2=10 electrons in the d subshell

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6 0
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