Asample of ethanol (c2h6o) has a mass of 0.2301 g. complete combustion of this sample causes the temperature of a bomb calorimeter to increase by 1.33°c. the calorimeter has a mass of 2.000 kg and a specific heat of 2.45 j/g•°c. how many moles of ethanol are present in the sample?

   moles

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number of particles.

To calculate the moles, we use the equation:

Given mass of ethanol = 0.2301

Molar mass of ethanol = 46.07 g/mol

Thus there are  moles of ethanol are present in the sample.

the answer is 6.52 for the first one then the second one is 0.004993 and finally, 1,310

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the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.