Assume each salt below is dissolved in water to make a 1M solution. Chose if that solution is acidic, basic, neutral, or you would need more information to make that determination. 1. (CH3)3NHF
2. NaHSO4
3. Na2SO4
4. Ca(CO3)2 [Ca(CO3)2]
5. C5H5NHB
Assume each salt below is dissolved in water to make a 1M solution. Chose if that solution is acidic, basic, neutral, or you would need more information to make that determination.
1. KI
2. NH4NO3
3. MgCl2
4. NH4NO2
5. C6H5NH3C

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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