2 years ago

Transformation of energy through digestion that helps maintain body temperatures

Chemistry

1 answer:

Sliva [168]2 years ago

8 0

Answer:

I am not sure about this question sry but u can try asking a tutor

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How many representative particles are in one mole of CO2? PLEASE ANSWER ALMOST DUE

igor_vitrenko [27]

Answer:

I hope this helps, sorry if it doesnt. Not really good with chemistry, hope you have a great day/night :}

Explanation:

A mole (mol) is the amount of a substance that contains 6.02 × 10 23 representative particles of that substance.

12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023).

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2 years ago

A 0.753 g sample of a monoprotic acid is dissolved in water and titrated with 0.250 M NaOH. What is the molar mass of the acid i

Alexeev081 [22]

Answer:

$MM_{acid}=140.1g/mol$

Explanation:

Hello,

In this case, since the acid is monoprotic, we can notice a 1:1 molar ratio between, therefore, for the titration at the equivalence point, we have:

$n_{acid}=n_{base} \\\\V_{acid}M_{acid}=V_{base}M_{base}\\\\n_{acid}=V_{base}M_{base}$

Thus, solving for the moles of the acid, we obtain:

$n_{acid}=0.0215L*0.250\frac{mol}{L}=5.375x10^{-3}mol$

Then, by using the mass of the acid, we compute its molar mass:

$MM_{acid}=\frac{0.753g}{5.375x10^{-5}mol} \\\\MM_{acid}=140.1g/mol$

Regards.

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2 years ago

Which of the following is a quemical property ?

saveliy_v [14]

One chemical property would be reactivity of a particular substance.

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3 years ago

I'm strong and stiff

Andreas93 [3]

Answer:

Sap?

Explanation:

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2 years ago

How many moles in 28 grams of CO2?

Phantasy [73]

# moles = mass / Mr

moles = 28 / (12+(16*2))

#moles = 28/44

#moles = 0.63 moles

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3 years ago