Friday
April 18, 2014

Posts by will.i.am


Total # Posts: 16

chemistry quick homework help
A sample of Freon-12 (CF2Cl2) occupies 2.507 x 101 L at 291 K and 2.518 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP).

chemistry quick homework help
A gas occupies 359 mL at 501.4 Torr and 24.1 °C. When the pressure is changed to 441.8 Torr, what temperature is needed to maintain the same volume?

chem
A sample of sulfur hexafluoride gas (SF6) occupies a volume of 1.200 Liters at 7.067 x 101 oC. Assuming the pressure is constant, what will the final temperature be (in o C) if the volume is increased to 7.110 Liters?

Chem
Which of the following are correct statements? (Could be as many as 4) 1. One mole of gas contains 22.4 representative particles 2. Standard pressure is 100 mm Hg 3. One mole of a gas must have the same volume as one mole of any other gas at STP 4. Gas molecules are spaced far...

chemistry quick homework help
What is the molecular geometry surrounding the carbon atom in CI4? (This compound contains the elements caron and iodine, not chlorine.) trigonal planer pyramidal (trigonal pyramidal) bent (angular) linear tetrahedral

Chemistry
Identify the true statement about Lewis structures. Select all the correct answers. 1. Hydrogen is usually surrounded by 4 electrons in a valid Lewis structure. 2. A single bond in a Lewis structure represents 2 electrons. 3. A double bond in a Lewis structure represents 2 ele...

chemistry
Enter the symbol for the element represented by the following electronic configuration. [Ar]4s23d6 ??? How does this work?

Chemistry
What is the maximum number of electrons that can occupy a subshell with l = 2 ? (Remember that l = 0 denotes an s orbital, l = 1 denotes a p orbital, l = 2 denotes a d orbital, and l = 3 denotes an f orbital.) ?????

chem
Given the following wavelength of light, calculate the energy of one photon in Joules. λ = 1 x 10^0 meters what does it mean? i dont know what to do or how to solve

chemistry
4 P + 5 O2 ==> P4O10 If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each compound do you have present?

chemistry
so I don't expect you to answer all of these I just don't understand how they work so if someone could just explain one or two so I can do the rest that would be helpful! Thanks! Use the activity series to predict whether the following reaction will occur. Enter the pr...

chemistry
balance H2SO4 + NaOH --> H2O + Na2SO4 so i know you need 2 Na on each side but then I cant figure out the #'s for O or H

chemistry
balance H2SO4 + NaOH --> H2O + Na2SO4

chem
Balance the following equation by entering the correct coefficients. NaHCO3 --> Na2CO3 + H2O + CO2

chem
Balance the following equation by entering the correct coefficients. H3PO4 + KOH K3PO4 + H2O

chem
Balance the Following Reaction: Mg(s) + H2O(g)Mg(OH)2(s) + H2(g)

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