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Stells [14]
3 years ago
12

Helppppp plzzz for 30 points

Chemistry
2 answers:
Alex_Xolod [135]3 years ago
6 0

Answer:

i am not sure enough for A but i think the ans is in dilute amount

Explanation:

MrRissso [65]3 years ago
5 0

Answer with Explanation:

This is expirament based Q

1) Bring a magnet near ... the Cobalt will come out of te mixture and get attracted to magnet

2)  Disolve it in a solution of ethanol. The Idoine gets dissolve and the other doesnt.

Hope im right!!

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How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? Show all of
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Given:
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As part of your job you are asked to make 1 liter of a 0.5 molar sucrose solution. how much sucrose (c12h22o11) do you need? use
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Answer:-  171 g

Solution:- It asks to calculate the grams of sucrose required to make 1 L of 0.5 Molar solution of it.

We know that molarity is moles of solute per liter of solution.

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moles of solute = molarity* liters of solution

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grams of sucrose required = 0.5*342  = 171 g

So, 171 g of sucrose are required to make 1 L of 0.5 molar solution.




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