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klio [65]
3 years ago
9

what is the molarity of a solution that has 1.54 moles NaCI in a 3.7L solution. How do you prepare 50ml of 0.5 M of KCI from a s

tock solution of 1.0 M KCI ( two separate questions)
Chemistry
1 answer:
dsp733 years ago
8 0

Answer:

69jtententemwntsj6e

Explanation:

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The compounds shown below are written using the chemical symbols for the elements that they contain. The key shows the names of
Scrat [10]
Most of the compounds containing C and H are organic so A. CH4 is the correct option
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What is the approximate mass of one mole of oxygen gas (O2)?
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The correct answer is B.

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3 0
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Food molecules contain biochemical energy which is made available by
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4 0
3 years ago
How many atoms of S are in the following formula: 3Na(SO4)2<br><br> 1) 6<br> 2) 8<br> 3) 3<br> 4) 5
larisa [96]

Answer:

6

Explanation:

7 0
3 years ago
Place these hydrocarbons in order of decreasing boiling point. Rank from highest to lowest boiling point. 1. Paraffin, C40Hg2 2.
lesya [120]

Answer:

Paraffin > Heptadecane > Hexane > 2,2-dimethylbutane > Propane

Explanation:

It must first be establish that all the molecules listed in the question are alkanes. For alkanes, the intermolecular forces between the molecules of alkanes increases with increasing molecular weight. This is as a result of increase in the surface area of the molecule. Increase in surface area implies a greater degree of dispersion forces.

This is the reason why high boiling points are observed for high molecular weight alkanes.

6 0
3 years ago
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