Which of the following is a hypotonic solution in comparison to a red blood cell, which has an internal concentration of 0.28 M?

A 0.18 M solution of ethylene glycol (C2H6O2).

None of these are hypotonic.

More than one of these is hypotonic.

A 0.10 M solution of Na2SO4.

A 0.14 M solution of KNO3.

the role of the microscope world in creating new materials .

particle   p is an electron and particle q is a neutron

c. is the answer

by love gaming

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol