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3 years ago

Number of molecules in 16 grams of h2co3

Chemistry

2 answers:

enyata [817]3 years ago

8 0

For this one u can work out the amount of moles in h2co3 by using moles=mass/mr(of h2co3 is 52)

so 16/62=0.258moles then u use the equation

number of particle = moles × 6.02×10^23

=0.258×6.02 ×10^23

=1.55×10^23 molecules.

hope this helps

umka2103 [35]3 years ago

4 0

1 mole =6.023×10 root 23. 16 x 10root 23=160root 23 mole.

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<h3>Definition of ideal gas</h3>

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

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In this case, you know:

P= 1.50 atm
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Read 2 more answers

Propane (c3h8) is burned in oxygen to produce carbon dioxide and water. the heat of combustion of propane is -2012 kj/mole. how

Olegator [25]

$C_{3} H_{8} + 5 O_{2} ---\ \textgreater \ 3CO_{2} +4H_{2}O (-2012 \frac{kJ}{mol} )


3 mol 10 mol


C_{3}H_{8} is /excess /reactant

because 3 mol propane require 15 mol oxygen (by reaction)

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2012 ( kJ/mol)*2 mol =4024 KJ heat will be given off

Correct answer is number 4.


$

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