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galben [10]
3 years ago
15

Taryn has a 90-gram sample of ethanol, which has a specific heat of

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
7 0
35 Celsius minus the average 20 Celsius.  going to be  15. let me know if u need anything else.
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What is the mass of 1.84 mol NaCl?
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Sent a pic that shows the work and answer is in box.

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3 years ago
Write the Keq for the dissolving of salt: NaCl → Na+ + Cl-.
Phantasy [73]
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Each molecule of lycopene contains 40 atoms of carbon (plus other atoms). The mass percent of carbon in lycopene is 84.49%. What
IrinaK [193]

Answer: 568g/mol

Explanation:

It should be noted that there are 40 atoms of carbon in lycopene.

Since mass of 1 carbon = 12g/mol

Mass of 40 carbon atoms = 40 × 12g/mol = 480g/mol

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5 0
3 years ago
How many molecules of co2 form when 2.00 g of c2h5oh are produced?
Ronch [10]
The reaction involved in this problem is called the combustion reaction where a hydrocarbon reacts with oxygen to product carbon dioxide and water. The reaction of C2H5OH would be as follows:

C2H5OH + 3O2 = 2CO2 + 3H2O

To determine the number of molecules of CO2 that is formed, we need to determine the number of moles produced from the initial amount of C2H5OH and the relation from the reaction. Then we multiply avogadros number which is equal to 6.022x10^23 molecules per mole. 

2.00 g C2H5OH ( 1 mol C2H5OH / 46.08 g C2H5OH ) ( 2 mol CO2 / 1 mol C2H5OH ) = 0.0868 mol CO2
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4 0
4 years ago
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Liono4ka [1.6K]
I personally, would remove " Lamp oil is a very polar substance " And replace it with what the article you wrote, was about. For example, lets say you wrote about why people love ice cream, you could have the ending sentence say. " And that's why I wrote about why people love ice cream" Or something along those lines. I'd write a few more facts about it first,  don't just have one sentence saying a fact without any supporting detail, hope this helps! :)
3 0
3 years ago
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