Calculate the hydroxide ion concentration, [OH-], in 1.90 M HNO3.
Calculate the hydrogen ion concentration, [H+], in 0.00968 M NaOH.
Calculate the hydrogen ion concentration, [H+], in 0.00612 M Ba(O
Because it makes them easier to categorize and remember, and sometimes easier to figure out.
For example, combustion reactions involve oxygen hydrocarbons usually, so you immediately know that O2 is
10.0mL of a 1.0M solution is diluted to 250.0mL. What is the concentration of the diluted solution?
the answer i got was 0.04M, but im not sure if its right. can someone explain how to do this kind o
1. 2Na + Cl(2)-> 2NaCl + Energy : absorbing or realeasing?
*the () means its a exponent
2. 2H(2)O + ENERGY -> 2H(2) + O(2) : absorbing or releasing?
.-1. Since energy is a product in this reaction, i
2 Ca3(PO4)2(s)+6 SiO2(g)+10 C(s) --> P4(s)+6 CaSiO3(s)+10 CO(g)
If 39.3 g of Ca3(PO4)2, 24.4 g of SiO2 and 8.00g of C are available, find the limiting reagent.
My final answer is Ca3(PO4)2 is the li
Give an example of an electrophilic aromatic:
A)nitration reaction
B)sulfonation reaction
C) halogenation reaction-Phenol + HNO3 (excess) --> Picric Acid
Phenol+ 2H2SO4 --> phenol sulphonic acid
Phen
What mass (in grams) of N2 gas is present in a 25.0 L container at 100 K at 5.0 atm N2 pressure if the gas is ideal?-PV = nRT = gRT / MM
g = PV * MM / RT = 5.0 * 25.0 * 28.0 / (0.08206 * 100) = 427 g-
If 2.5g of Ca metal is reacted with excess HCl, how many liters of H2 gas are produced at 25 C and 1 atm?-LOL doin the take-home quiz from kellys lecture? i need answer too
http://answers.yahoo.com/qu
how much would kill you-why?-The issue is this.Most true chemistry problems fall into a particular pattern.. How many moles of CO are in a 2L container at STP. etc.
Sometimes people ask questions lik
78.1 mL of nitrogen at STP is heated to 79.0°C and the volume increased to 4.43 L. What is the new pressure, in atmospheres?
i got the answer of 22.69 but since it has to be in atm the answer would b
I want to learn spectroscopy, but dont know where to start from. If anyone can tell me a systematic approach to study this subject, that will be a great help for me. Thanks!-First of all, you have to
(orientation around the peptide bond) I think I have this right wish there was an easier way to upload a picture of this up here Ill try my best this is what i have so far.
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How will a system having the following equilibrium in it respond to the changes listed below?
2H2O(g) + energy --> 2H2(g) + O2(g)
a) Adding water vapor
b) removing Hydrogen gas?
c) reducing the system
A.)How many milliliters of a stock solution of 10.8 M HNO3 would you have to use to prepare 0.500 Lof 0.530 M HNO3 ?
B.)If you dilute 30.0 mL of the stock solution to a final volume of 0.420 L , what
