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boyakko [2]
3 years ago
15

Here's a freebie for you guys

Chemistry
1 answer:
Alex787 [66]3 years ago
7 0
Thank you! Have a great day
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The average daily diet of an adult woman is 2.4×103kcal. the molar mass of atp is 507 g/mole. part a if all the energy in her di
mezya [45]
To answer this question, we should give the standard free energy change of ATP to ADP conversion that is equal to 30.5 kJ/mol ATP. In this case, 2400 kcal is equal to 10041. 6 kJ. Hence, the mol of ATP produced is 329.23 mol ATP or equal to 166.93 kg ATP. 
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3 years ago
How can u describes a true solution?
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<span>True Solution is a homogeneous mixture of two or more substances in which substance dissolved (solute) in solvent has the particle size of less than 10-9 m or 1 nm. Simple solution of sugar in water is an example of true solution.</span>
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3 years ago
Rachel was riding her bike at a velocity of 9 m/s to the east. Her velocity
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Answer:-3m/s east

Explanation:that’s right

3 0
4 years ago
How many molecules of CH4 are in 24.1 g of this compound?
jok3333 [9.3K]

<u>1) find molar mass of CH₄</u>

=12.01+4(1.01)\\\\=16.05\ g/mol

<u>2) determine moles of CH₄</u>

=24.1g\ CH_{4}\ x\ \frac{1\ mol\ CH_{4}}{16.05g\ CH_{4}}\\\\=1.501557632\ mol\ CH_{4}

<u>3) multiply by avogadro's number</u>

=1.501557632\ mol\ CH_{4}\ x\ \frac{6.022\ x\ 10^{23}\ molecules\ CH_{4}}{1\ mol\ CH_{4}} \\\\=9.04238006\ x\ 10^{23}\\\\=9.04\ x\ 10^{23}\ molecules\ CH_{4}

7 0
2 years ago
How many grams of ethanol, CH3CH2OH, should you dissolve in water to make 0.800 L of vodka (which is an aqueous solution that is
Rashid [163]

Answer:

252.5g

Explanation:

Given parameters:

Volume of vodka = 0.8L

Molarity of ethanol  = 6.86M

Unknown:

Mass of ethanol  = ?

Solution:

Molarity is one of the ways of expressing concentration. It is the number of moles of a substance in a solution.

 Since Vodka = ethanol + water  = solution

    Molarity  = \frac{number of moles of ethanol}{Volume of solution}

    Number of moles of ethanol  = molarity of vodka x volume of solution

Once we obtain the number of moles, we can derive the mass of the ethanol;

 Number of moles  = 6.86M x 0.8L  = 5.49moles

Mass of ethanol  = number of moles x molar mass

molar mass of ethanol   = 12 + 3(1) + 12 + 2(1) + 16 + 1 = 46g/mol

  Mass of ethanol  = 5.49 x 46 = 252.5g

         

3 0
4 years ago
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