Four friends contribute sums of money to a charitable organization in Haiti in the ratio of 2:3:5:8. If the largest amount comtributed is $18,500, calculate the total amount contributed by the four people.
Zn + I2 ---> Zn ^+2 + 2I- will this reaction occur spontaneously?
Calculate [H3O+] and [OH-] in 0.18M hyrdobromic acid, HOBr(aq) having, Ka of 2.0 x 10^-9
sketch a ph curve for the titration 40.00 mLof 0.100M hyrazine H2NNH2(aq) having a Kb of 3.0 x 10^-6 by 0.100 M HCIO4(aq)
Calculate [H3O^-] in a 0.15M solution of benzoic acid, HC7H5O2(aq) having a Ka of 6.4 x 10^-5 I got. 6.4x10^-5=(x)(x)/0.15 6.4x10^-5= x^2/0.15 6.4x10^-5 x 0.15 = x^2 square root of 9.6x10^-6 = square root of x^2 x= 0.003098 The pH solution is -log [0.003098] = 2.50 b.) Calcula...
Identify the two conjugate acid-base pairs in each of the following. a.) H2PO4-(aq)+HSO4-(aq) <=> H2PO4(aq)+ SO4^-2(aq) b.) HI(aq)+ CN-(aq)<==>HCN-(aq)+ I-(aq)
How many milliliters of a 2.0M NaOH solution are needed to neutralize 20.0 ml of a 2.5M CH3COOH solution? How do I begin to figure this out?
A movie theater runs two films continuously. One film runs for 85 minutes and a second film runs for 100 minutes. Both movies begin at noon. When will the two films start again at the same time?
Damon, so what you did was apply the quotient rule to the ax part? Wouldn't the -8 be -8x then? And if I'm doing it right, would my final equation be this? 0=(5x^4+10x^3+x^2+4x+4)/(x^2+x+2)^2
f(x)=8/(x^2+x+2) Set up an equation, which when solved will give the points where the tangent line has y-intercept 5.
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