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

Hope this helps anyone

Please mark me as Brainliest

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.