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liubo4ka [24]
3 years ago
12

How many of moles in 162 grams of H2SO4​

Chemistry
1 answer:
blondinia [14]3 years ago
4 0

Answer:

0.010195916576195

Explanation:

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Write the nuclear equation for the beta decay of Aluminum-25.
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We want to write the nuclear equation for the beta decay of Aluminium-25.

The equation is:

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First, as you may know, in a beta decay the number of protons is increased by one. Aluminium has 13 of them, so after the decay, we will have 14 protons.

This means that the aluminium will transform into silicon, then the nuclear equation is just:

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2 years ago
A student prepares a weak acid solution by dissolving 0.2000 g HZ to give 100. mL solution. The titration requires 33.5 mL of 0.
nexus9112 [7]

Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

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Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

mass = 0.200 gHZ

moles = 0.0335*100 * 0.1025 = 0.034

therefore molar mass = mass / moles

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if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

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3 years ago
“Least molecular motion, lowest kinetic energy, strongest forces of attention, most dense packaging of molecules”. Which state o
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<h2><em>Solid. Because molecules densely packed it has a high resistance to flow thereby lower kinetic energy. </em></h2>
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