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malfutka [58]
2 years ago
13

What can do ,when the solution remain in the jet/ nozzle of the pipette?​

Chemistry
1 answer:
lutik1710 [3]2 years ago
5 0

ans is opt (b)

Explanation:

the pippet reading is already adjusted accordingly so there is no need to blpw out the last drop ylthe reading will be accurate anyway

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Given what you observe at the molecular/atomic level, why would surface area have this effect?
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As more potassium sulfate dissolves in the water, the mixture becomes..<br> PLEASE HELP ME
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4 0
3 years ago
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Explique las diferencias entre mezcla y combinación. De un ejemplo de cada uno.
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3 0
3 years ago
how many moles of hydrogen gas will be produced if you start with 2.5 moles of magnesium and an excess of hydrochloric acid give
Vinil7 [7]

Number of moles of Hydrogen gas produced = 2.5 moles

Given the balanced chemical equation,

                   Mg+2HCl \rightarrow MgCl_2+H_2

This means, 1 mole of Mg and 2 moles of HCl gives 1 mole of Hydrogen gas.

Given that 2.5 moles of Magnesium is taken and an excess of Hydrochloric acid.

The mole ratio of Magnesium and Hydrogen = 1:1

Thus 2.5 moles of Magnesium with an excess of Hydrochloric acid will yield 2.5 moles of Hydrogen gas.

[By referring excess of HCl, we may assume that it contains at least 5 moles of HCl. Then only 2.5 moles of Mg will produce 2.5 moles of Hydrogen gas].

Learn more about the mole ratio at brainly.com/question/19099163

#SPJ4

6 0
2 years ago
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