Monday

July 28, 2014

July 28, 2014

Total # Posts: 26

**Chem**

What is the pH of 0.0169 M sodium sulfite.

**Algebra 1B**

I got the answer its b^2

**african american history**

what is the argument of the book arc of justice?

**Chemistry**

Calculate the volume of 1.78M sulfuric acid that would be needed to neutralize 62.4 mL of a 2.09 M aqueous ammonia solution. The equation for the reaction is H2SO4(aq) + 2 NH3(aq) ---> 2 NH4(aq)+ SO4 ^-2 (aq)

**Statistics**

Assume there are two lakes containing trout and the weights of the trout in each lake are normally distributed. The distribution of trout weight in Lake A has a mean of 18 ounces with a standard deviation of 2 ounces. The distribution of trout weight in Lake B has a mean of 19...

**Statistics**

Suppose a tire manufacturer wants to set a mileage guarantee on its new XB 70 tire. Life tests revealed that the mean mileage is 47,900 miles and the standard deviation is 2,050. The manufacturer wants to set the guaranteed mileage so that no more than five percent of the tire...

**Statistics**

What will adding 50 to each score in a distribution do to the standard deviation of that distribution?

**Statistics**

9. A probability experiment has three possible outcomes, A, B, and C. If P(A) = 0.60 and P(B) = 0.20, then P(C) = ______.

**Statistics**

8. What will adding 50 to each score in a distribution do to the standard deviation of that distribution? will not change the standard deviation will increase it by 50 will increase it by 502 will not change it but will increase the variance

**Statistics**

A loaded die is tossed. Which of the following assignments could be made for the probabilities of each simple outcome. P(1) = .2 P(2) = .2 P(3) = .2 P(4) = .1 P(5) = .1 P(6) = .1 P(1) = .2 P(2) = .3 P(3) = .1 P(4) = .1 P(5) = .1 P(6) = .0 P(1) = .1 P(2) = .1 P(3) = .1 P(4) = ....

**Statistics**

The grades for Economics students at a large university are found to be normally distributed with a mean of 76 and a standard deviation of 4. What proportion of the students are expected to have a grade between 84 and 88?

**Statistics**

The lifetimes of batteries produced by a firm are known to be normally distributed with a mean of 100 hours and a standard deviation of 10 hours. What is the probability a battery will last between 110 and 120 hours?

**chemistry**

Write molecular, ionic, and net ionic equations. HIO2(aq) + Ba(OH)2(aq) -->

**chemistry**

Write molecular, ionic, and net ionic equations. HIO2(aq) + Ba(OH)2(aq) -->

**chemistry**

Write molecular, ionic, and net ionic equations. AgNO3(aq) + KBr(aq) -->

**chemistry**

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 20 mL of H3PO4 is required to react with 40 mL of a 0.15 M Sr(OH)2 solution. What is the molarity of the H3PO4 solution?

**chemistry**

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 How many grams of Sr3(PO4)2 could be produced by the complete reaction of 200 mL of 0.40 M H3PO4?

**Chemistry**

Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 How many mL of 0.10 M Sr(OH)2 are required to react with 30 mL of 0.30 M H3PO4?

**Chemistry**

How many mL of a 6 M HCl solution are required to prepare 200 mL of a 0.2 M solution?

**Chemistry**

What is the molarity of a solution made by dissolving 10 grams of CaBr2 in enough water to make 400 mL of solution?

**Health Information Technology**

What does the term "ethics" mean? With what ethical standards must students comply? Are ethical standards higher for those in the medical profession? Should they be? Why or why not?

**Data Management**

Determine the number of ways of selecting four letters, without regard for order, from the word 'parallelogram'

**math**

the practice range at a golf course charges $4.00 for a bucket of 40 golf balls.At this rate,how much will a bucket of 100 golf balls cost?

**6th grade**

miranda enlarged a picture propotionally.Her original picture is 4 cm wide and 6 cm long.If the new,larger picture is 10 cm wide, what is its length?

**6th grade**

a model of a park was built on a scale of 1.5 centimeters to 50 meters.If the distance between two trees in the park is 150 meters,what is this distance on the model?

**U.S HISTORY**

HOW DID GREAT BRITAIN LIMIT THE POLITICAL AND ECONOMOIC FREEDOM OF THE THIRTEEN COLONIES?

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