Questions Asked

jk_16:
Group Title
For what integer values of n is xy a factor of x^n  y^n?
 updated 11 months ago
 2 replies
 3 Medals

jk_16:
Group Title
how many sodium ions in 99.6mg of .750M Na2SO4 soln?
d=1.10g/mol
answer: 8.18*10^19
 updated one year ago
 No Medals Yet

jk_16:
Group Title
For an intro chem course
Zn^0 (s)+ Cu^2+ (aq) + 2H+ >Cu + H2O(l)
…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
Intro course
Zn^0 (s)+ Cu^2+ (aq) + 2H+ >Cu + H2O(l)
…
 updated one year ago
 1 reply
 1 Medal

jk_16:
Group Title
Oxidation state for
2Mn^(2+)
…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
oxidationreduction question..
MnO4(2)
Mn+4(2)=2
…
 updated one year ago
 4 replies
 1 Medal

jk_16:
Group Title
I was able to solve the problem but I dont know why.
problem: S + O2 > SO2; 2.6*10^7 tons of SO2 formedhow many tons of sulfur??
…
 updated one year ago
 3 replies
 No Medals Yet

jk_16:
Group Title
I have glucose (C6H12O6)..I find molar mass=180.16[g/mol]
if I want the mass in grams I can just do
…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
Carry out the following calculations and round to the proper number of significant figures.
Log 967.3
Im putting in 6.8745 but it says its…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
How to partial fraction decomp for:
1/[s^2(s3)^2]
…
 updated one year ago
 5 replies
 No Medals Yet

jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 6 replies
 1 Medal

jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 2 replies
 1 Medal

jk_16:
Group Title
calculate the quantity of heat in KJ required to raised the temp. of 2.15kg iron bar 24c (specific heat iron=.473J/gc)..answer in KJ
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
How would you put y=ln(x+1)/ln(x) in terms of x=
thanks
 updated one year ago
 No Medals Yet

jk_16:
Group Title
Is there a limit as to the magnitude of the radius of a bubble in water is?
 updated one year ago
 2 replies
 No Medals Yet

jk_16:
Group Title
Question is attached..on calculus (derivatives) and induction for higher order derivatives
 updated one year ago
 16 replies
 1 Medal

jk_16:
Group Title
how would I find this??
 updated one year ago
 3 replies
 No Medals Yet

jk_16:
Group Title
how would I find the second derivative of uv with respect to x
exact notation:
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
how do you evaluate this limit??
Limit as x>a
[f(x)m(xa)c]/[xa]
…
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
why is
((m(xa)+c))
equal to
…
 updated one year ago
 5 replies
 1 Medal

jk_16:
Group Title
Suppose that y=f(x) is differentiable at x=a and that g(x)=m(xa) + c is a linear function in which m and c are constants. If there error E(…
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
Suppose that y=f(x) is differentiable at x=a and that g(x)=m(xa) + c is a linear function in which m and c are constants. If there error E(…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
m1, m2, m3, Radius, coeffiction of friction U
 updated one year ago
 2 replies
 No Medals Yet

jk_16:
Group Title
mass1 pulled down by m2 using a pulley system..
kinetic friction of u..find velocity after distance D
 updated one year ago
 2 replies
 No Medals Yet

jk_16:
Group Title
A cutting tool several forces acting on it. One force is F=axy^2 j , a force in the negative ydirection whose magnitude depends on the pos…
 updated one year ago
 16 replies
 1 Medal

jk_16:
Group Title
A cutting tool several forces acting on it. One force is F=axy^2 j , a force in the negative ydirection whose magnitude depends on the pos…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
in ti89 titanium how do i make it so that when i input sin(pi/3) it returns sqrt(3)/2
??
 updated one year ago
 No Medals Yet

jk_16:
Group Title
proff showed us a trick today for trig substitution:
integral of dx/(x^2/16)
we know: dx/(x^2+1)=arctanx+C
…
 updated one year ago
 No Medals Yet

jk_16:
Group Title
need to find the integral of the differention so
integral dv from 0 to 10
not sure what to do with the dv
 updated one year ago
 10 replies
 1 Medal
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