Recent content by BittersweetLove

There's no more to it. Promise. Maybe if there were, I wouldn't be so confused. lol.

I'm a bit confused because isn't the Ideal Gas Law equation Pressure (x) Volume = # of moles (x) 0.0821 atm (x) Temperature? If I do that equation, I have the volume and temperature, but what about the pressure and moles? I don't even know how I would find mol in the problem.

Am I doing these right?? 1)How many moles of Li3N will be produced if you begin with 8.5 moles of Li ? **Do I just find the moles for 3N and add them to the 8.5 moles of Li?** 2)Calculate the number of atoms in 20.5 g Carbon **I guess I would Multiply Carbon's atoms by 20.5?**...

Another problem with an equation I don't know.I'm sooo going to fail this test if I don't get some help... A basketball with a volume of 4.75 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 309 K during the day?

Does anyone know the equation for the second one, and any ideas about the first one? *What affect does altitude have on atmospheric air volume? * A diver goes down to a depth of 132 feet. How many atmospheres of pressure are on the diver?

Alrighty thanks...Let me try again.

Homework Statement *How many moles of LiH are required to make 1 mole of LiAlH4? * 6 moles of LiH will produce how many moles of LiAlH4? Can someone help me get started on these?

Homework Statement A gas with a volume of 2.75 L is known to contain 0.766 mol. Keeping the temperature and pressure constant, if the amount of gas is increased to 2.89 mol, what will be the new volume? The attempt at a solution I got 5.84 L. Is that correct?

Thanks. Hopefully I'm remember that for the test. *fingers crossed* It seems easy enough but when you suck at this stuff, it's hard to remember everything. Thanks again. 8)

Can someone tell me if these are correct please? 8) Match the reaction type with the reaction: Problems: 1. 2Na + Cl2---> 2NaCl 2. 4NaF + O2----> 2Na2O + 2F2 3. 4LiH + AlCl3---> 3LiCl + LiAlH4 4. 2H2O ---->2H2 + O2 AnSwErS: 1. A) Synthesis 2. B) Single Replacemet...

Oh sorry...I actually have already solved these...I just wanted to make sure they were correct and if I didn't get any replies, oh well. Didn't mean to break any rules.

Thanks so much! You're awesome. 8)

Thanks everyone...I think I've got in now. I really appreciate you help. 8)

Match the reaction type with the reaction: AnSwErS: A) Synthesis B) Single Replacemet C) Double Replacement D) Combustion E) Decomposition Problems: 1. 2Na + Cl2 2NaCl 2. 4NaF + O2 2Na2O + 2F2 3. 4LiH + AlCl3 3LiCl + LiAlH4 4. 2H2O 2H2 + O2

[SOLVED] Determine the mass of sodium chloride produced when 2.5 moles of chlorine ga Okay...I know how to solve half the problem. I know how to balance the problem but I'm not sure what to do next. I'm really bad at this stuff. Here's the question: Determine the mass of sodium chloride...