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Questions Asked

hardequalsmath:
NOCL decomposes to form nitric oxide and chlorine, all in the gaseous state. At a given temperature 0.150 moles of nitric oxide gas, .100 mo…
 updated 40 minutes ago
 2 replies
 No Medals Yet
Mathematics

hardequalsmath:
A private shipping company will accept a box for domestic shipment only if the sum of its length and distance around does not exceed 108 in.…
 updated 7 days ago
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Mathematics

hardequalsmath:
Determine the critical values: 2x^264sqrt(x)
 updated 7 days ago
 35 replies
 2 Medals
Mathematics

hardequalsmath:
Determine the critical values:
2x^364sqrt:x
 updated 7 days ago
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Mathematics

hardequalsmath:
The concentration of hydronium ion in a solution is 2 x 10
4
M. What is the hydroxide ion
…
 updated 12 days ago
 9 replies
 4 Medals
Mathematics

hardequalsmath:
Ammonia, NH3, is a weak base with a Kb value of 1.8×10−5. What is the pH of a 0.440M ammonia solution? What is the percent ionization of amm…
 updated 14 days ago
 5 replies
 3 Medals
Mathematics

hardequalsmath:
NH4HS(s)⇌NH3(g)+H2S(g)
This reaction has a Kp value of 0.120 at 25 ∘C. An empty 5.00L flask is charged with 0.400g of pure H2S(g), at 25 ∘…
 updated 15 days ago
 1 reply
 1 Medal
Mathematics

hardequalsmath:
What is the final concentration of D at equilibrium if the initial concentrations are [A] = 1.00M and [B] = 2.00M ?
kc=3.3
 updated 17 days ago
 1 reply
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Mathematics

hardequalsmath:
For the reaction
2CH4(g)⇌C2H2(g)+3H2(g)
…
 updated 17 days ago
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Mathematics

hardequalsmath:
A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350M , [B] = 0.950M , and [C] = 0.650M . The following rea…
 updated 17 days ago
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Mathematics

hardequalsmath:
Given the two reactions
PbCl2⇌Pb2++2Cl−, K3 = 1.83×10−10, and
…
 updated 18 days ago
 1 reply
 1 Medal
Mathematics

hardequalsmath:
if a reaction is endothermic and nonspontanous at 298 k then why is it safe to say that it may be spontaneous at higher temperatures?
 updated one month ago
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Mathematics

hardequalsmath:
Explain!!!!!
for a given reaction at 298k, the enthalpy of reaction is +35.5kj and the entropy of reaction +83.6J/mol*k. The reaction is sp…
 updated one month ago
 2 replies
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Mathematics

hardequalsmath:
find derivative:
y=(9x+4)^x
 updated one month ago
 23 replies
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Mathematics

hardequalsmath:
Hydrogen gas and bromine vapor react to form gaseous hydrogen bromide at 1300 K. The value of the equilibrium constant is 1.6 x 105. What is…
 updated one month ago
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Mathematics

hardequalsmath:
Hydrogen gas and bromine vapor react to form gaseous hydrogen bromide at 1300 K. The value of the equilibrium constant is 1.6 x 105. What is…
 updated one month ago
 7 replies
 2 Medals
Mathematics

hardequalsmath:
Hydrogen gas and bromine vapor react to form gaseous hydrogen bromide at 1300 K. The value of the equilibrium constant is 1.6 x 105. What is…
 updated one month ago
 No Medals Yet
Mathematics

hardequalsmath:
Carbon disulfide and chlorine react according to the following equation:
…
 updated one month ago
 8 replies
 1 Medal
Mathematics

hardequalsmath:
differentiate:
y=(sqrt:x)*e^x^2x*(x+1)^2/3
find using ln
 updated one month ago
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Mathematics

hardequalsmath:
differentiate:
y=ln(e^x+xe^x)
 updated one month ago
 20 replies
 1 Medal
Mathematics

hardequalsmath:
differentiate:
1/lnx
this one has me stuck!!
 updated one month ago
 14 replies
 2 Medals
Mathematics

hardequalsmath:
differentiate:
…
 updated one month ago
 4 replies
 1 Medal
Mathematics

hardequalsmath:
find all points ob the curve x^2y^2+xy=2
where the slope of the tangent line is 1. Ok so i know you find y prime first, but then what? Tha…
 updated one month ago
 41 replies
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Mathematics

hardequalsmath:
differentiate:
y=arctan(sqrt:(1x/1+x))
 updated one month ago
 40 replies
 1 Medal
Mathematics

hardequalsmath:
The activation energy of a certain reaction is 76.7 kJ/mol. How many times faster will the reaction occur at 50°C than at 0°C, assuming equa…
 updated 2 months ago
 1 reply
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Mathematics

hardequalsmath:
HELP with Arrhenius eq.
http://www.youtube.com/watch?v=G7g0Wa4oFsk
…
 updated 2 months ago
 3 replies
 1 Medal
Mathematics

hardequalsmath:
Calculate the standard free energy change for the combustion of methane at 25oC. Assume that all reactants and products are gases.
Ch4 is …
 updated 2 months ago
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Mathematics

hardequalsmath:
HELP! i have an older text book, and I need to know the standard delta G values all in gas form for:
O2
Co2
…
 updated 2 months ago
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Mathematics

hardequalsmath:
The following mechanism has been proposed for the gasphase reaction of chloroform (CHCl3) and chlorine:
Step 1: Cl2(g)⇌2Cl(g)(fast)
Step…
 updated 2 months ago
 1 reply
 1 Medal
Mathematics

hardequalsmath:
A certain firstorder reaction has a rate constant of 2.80×10−2s−1 at 15∘C. What is the value of k at 62∘C if Ea = 112kJ/mol ?
 updated 2 months ago
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Mathematics
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