CHEMISTRY COMMUNITY

Bryant Vong 2G

What kind of ghosts haunt chemistry faculties?

Methylated Spirits

Bryant Vong 2G

Free radicals have revolutionized chemistry.

Bryant Vong 2G

Why do chemists like nitrates so much?

They're cheaper than day rates.

Bryant Vong 2G

If you're not part of the solution, you're part of the precipitate.

Bryant Vong 2G

Why are chemists great for solving problems?

They have all the solutions

Bryant Vong 2G

What weapon can you make from the elements potassium, nickel and iron?

A KNiFe

Bryant Vong 2G

Why did the white bear dissolve in water?

Because it was polar.

Bryant Vong 2G

What is a cation afraid of?

A dogion

Bryant Vong 2G

Why did Carbon marry Hydrogen?

They bonded well from the minute they met.

Bryant Vong 2G

Why does hamburger have lower energy than steak?

Because it's in the ground state.

Bryant Vong 2G

What do you call a tooth in a glass of water?

A one molar solution.

Bryant Vong 2G

What do you do with a dead chemist?

Barium

Bryant Vong 2G

How many atoms in a guacamole?

Avocado's number

Bryant Vong 2G

H20 is water and H202 is hydrogen peroxide. What is H204?

Drinking

Bryant Vong 2G

Chemistry is really funny, there are even people who laugh at nitrogen(I) oxide.

Bryant Vong 2G

Intermediates are completely used up and not present by the end of the reaction

Bryant Vong 2G

Yes, 1st order and 2nd order have equations that incorporate other factors such as ln.

Bryant Vong 2G

It was not on the sheet.

Bryant Vong 2G

It should be given in the question.

Bryant Vong 2G

When there are less mols of gas, that means there are less molecules to add to the disorder that contributes to entropy.

Bryant Vong 2G

It should be based on the context of the question and whether or not they are mentioning mols.

Bryant Vong 2G

It being negative or positive also tells if the reaction is exo or endothermic.

Bryant Vong 2G

Could be things such as how much a person is heating up during exercise and how much water they need to sweat in order to keep their bodies at a good temperature.

Bryant Vong 2G

This is because it's dependent on the pressure and volume, meaning it can't be a constant value like with a state function.

Bryant Vong 2G

There is more energy in steam, since the energy in boiling water tops out at 100 degrees Celsius as it is going through the phase change.

Bryant Vong 2G

An isolated system doesn't allow a change in matter or energy, but closed systems only restrict matter transfers, but not energy

Bryant Vong 2G

There is more energy in steam than boiling water, because boiling water tops out at 100 degrees Celsius.

Bryant Vong 2G

You don't use it when you're able to tend x to 0 since the product is lower than 5%.

Bryant Vong 2G

Delta H0 stands for the original delta H.

Bryant Vong 2G

K=1 is rare because K is the ratio of reactants to products. If K was 1, that would mean that there is an equal amount of products to reactants.

Bryant Vong 2G

To find initial, you take the number of mols given to you and divided it by the volume since concentration is n/v. For initial you take your initial concentration and subtract it from x, x being what we are trying to find in the problem.

Bryant Vong 2G

I believe that these are both saying the same thing, so yes.

CHEMISTRY COMMUNITY

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Re: How do you tell if something is a catalyst vs an intermediate?

Re: Zero Order Rxn

Re: Vant Hoff equation on formula sheet

Re: delta S = sum of Sm(prod) - sum of Sm(react)

Re: Entropy and Reduction in moles of Gas

Re: Gibbs Free Energy Units

Re: Gibbs Free Energy

Re: Applying to biological and organic examples

Re: state functions

Re: Steam vs Boiling Water

Re: isolated vs closed system

Re: Steam v. Boiling Water

Re: When to use Quadratic equation

Re: Delta Hº versus delta H

Re: K value

Re: ICE Table

Re: Equilibrium 1A module