A gas system has volume, moles and temperature of 7.13L, 0.287moles and 545K, respectively. What is the pressure in atm?
O 1370 atm
O 0.555 atm
O 1.80 atm
O 7.31 atm

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

there are about seven isomers of c4h10o

explanation:

we know from the formula that these isomers contain no rings or double bonds.

the isomers must be alcohols and ethers.

let's start by drawing the alcohols.

start with four carbons in a row and put an   "oh" group in every possible position.

this gives us :

( note that all these 3's and 2's are supposed to come down not up)

1.ch ³ch²ch²ch²oh, butan 1-ol  

2. ch³ch²ch(oh)ch³, butan 2-ol

now use a 3-carbon chain with a   ch ³ on the middle carbon.

this gives us :

1. (ch³)²chch²oh, 2-methylpropan-1-ol

2. (ch³)³coh 2-methylpropan-2-ol.

now for the ethers.

let's start with five atoms in a row.

this gives us :

1.ch³ch²och²ch³, ethoxyethane

finally, the only choice for a branched-chain ether is

2. (ch³)²choch³, 2-methoxpropane.

and there are your seven isomers of c4h10o