Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 4

**statistics**

Suppose x is a uniform random variable with c=10 and d=70. Find the probability that a randomly selected observation is between 13 and 65. a. 0.133 b. 0.867 c. 0.8 d. 0.5

**chemistry**

Balance each of the following neutralization reactions. Part A HBr(aq)+Mg(OH)2(s)-->MgBr2(aq)+H2O(l) Part B H3PO4(aq)+NaOH(aq)-->Na3PO4(aq)+H2O(l)

**chemistry**

Part A 6.00×10−3 mol of HBr are dissolved in water to make 16.0L of solution. What is the concentration of hydroxide ions,[OH-], in this solution? Express your answer with the appropriate units.

**Math**

50+2(x)=L water in tank 50+2(20)=L water in tank 50+40=90L water in tank

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