What is the shorthand electron configuration for Ba2+

1 answer:

3 0

Since the barium ion will be isoelectronic to the nearest noble gas, which is xenon, the electronic configuration for Ba2+ is: [Xe]

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My answer -

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frosja888 [35]

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If the heat of fusion for water is 334 j/g, how many Jules are needed to melt 45.0 g of ice at 0.0°c?

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Given parameters:

Heat of fusion of water = 334j/g

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Temperature of ice = 0.0°c

Unknown:

Amount of heat needed to melt = ?

Solution:

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To solve this problem; use the mathematical expression below;

H = mL

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4 years ago

Determine the volume of distilled water that should be added to 20.0 mL of 12.0 M HCl(aq) in order to prepare a 0.500 M HCl(aq)

BARSIC [14]

Answer:

$V_{H_2O}=460 mL$

Explanation:

Hello!

In this case, in a dilution process, water is added to a solute in order to decrease its concentration but increase the volume of the solution. It means that if we have 20.0 mL of a 12.0-M solution of HCl and we want a 0.500-M solution, we need to apply the following formula considering that the moles remain unchanged:

$M_1V_1=M_2V_2$