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sp2606 [1]
3 years ago
14

Please I need help with this homework

Chemistry
1 answer:
lesya [120]3 years ago
6 0
1. Sediment are like sand, pebbles, cobble, boulders, other type of vegetation like tree trunks. When sediment slides over the river bed of a solid rock it will erode some of the rock
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A solution contains 0.5 moles of MgSO4 dissolved in 0.6 liters of water. In water MgSO4 dissociates into one Mg2 particle and on
mr_godi [17]

Answer:

1.7 Osm/L  

Explanation:

Osmotic concentration is the number of osmoles (Osm) of solute per litre of solution .

\text{Osmotic concentration} =  \dfrac{\text{No. of osmoles }}{\text{Litres of solution}}

An osmole is the number of moles of solute that contribute to the osmotic pressure of a solution.

1 Osm = i × n, where

i = the van't Hoff i factor and

n = the number of moles

The van't Hoff i factor is the number of solute particles obtained from 1 mol of solute.

For example,  

MgSO₄(aq) ⟶ Mg²⁺(aq) + SO₄²⁻(aq)

1 mol of MgSO₄ produces 2 mol of ions in solution, so i = 2.

\text{Osmotic concentration} = \dfrac{\text{1.0 Osm}}{\text{0.6 L}} = \textbf{1.7 Osmol/L}

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3 years ago
If you could help me that would be awesome
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There are 3 significant figures. Significant numbers are the numbers that build up your total number. 1-9 always count, 0 only counts if it’s after another number. For example: 0,901 has 3 significant numbers as does 0,910. 9,10 also has 3. 0,09 has just 1.
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