Friday
December 13, 2013

# Posts by kelly

Total # Posts: 1,455

chemistry
1K2PtCl4+2(NH3)->1Pt(NH3)2Cl2+2KCl what is the percent yield, when 34.5 grams of NH3 react with excess K2PtCl4 if 76.4 g of Pt(NH3)2Cl2 are actually produced?

Calculus
what happens to the 2 in e^2x? do u bring it down?

Calculus
Find the solutions of the exponential equation e^2x–4e^x+3=0 x1=? x2=?

physics
While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.31- piece of fishing line. The weight makes a complete circle every 0.70 . What is the angle that the fishing line makes with the vertical? Express your answer using two signifi...

Chemistry
a 9.85 g sample of an unknown metal M is burned in the presence of excess oxygen, producing the oxide M2O3 (s) and liberating 57.8kJ of heat at constant pressure. What is the identity of the metal? 4M(s) + 3O2(g) yields 2M2O3(s)

Calculus
Let f(x) = 1/(x+2) and g(x)= (x-1)/x. Simplify and state the domain. f(g(x)) g(f(x))

Poem Help
so the correct answers for this quick check, which I just took, are: 1. b 2. c 3. a 4. d

Poem Help
4 is d

calculus
lim (x^(2)-4)/(x-2) x->2 lim x->1 (x+1)/(x-1)

Chemistry
Running at a rate of 6 mi/h uses 704 Calories in an hour. Convert this value to (a) calories; (b) kilocalories; (c) joules; (d) kilojoules.

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