Monday
April 21, 2014

Posts by lele


Total # Posts: 23

Chemistry
* Fixed Question What is the PH of a buffer made by adding 8.20 grams of sodium acetate(NaCH3CO2) to 500 ml of 0.10 M(molarity) acetic acid(CH3CO2H). Ka for acetic acid is 1.8 x 10^-5.

Chemistry
What volume of 0.105 M(molarity)is needed to completely neutralize 25.0 ml of 0.180 M(molarity)HBr according to the equation: KOH(aq)+ HBr(aq)-> KBr(Aq)+ H2O(L)

Chemistry
What is the PH of a buffer made by adding 8.20 grams of sodium acetate(NaCH3CO2) to 500 ml of 0.10 M acetic acid(CH3CO2H). Ka for acetic acid is 1.8 x 10^-5.

Chemistry
What happen when the pink stock solution is heated in a water bath?

Math
320

math
speakers place every 10 yds around the wall of school auditorium. Auditorium is 210 ft by 300 ft. How many wall speakers are placed around the auditorium?

history
is it true that Lee Yick took his case to the Supreme Court and lost because, under the 14th Amendment, only U.S. citizens had the rights of due process and equal protection of the laws.

Calculus
Optimization An offshore oil well is 2km off the coast. The refinery is 4 km down the coast. Laying a pipe in the ocean is twice as expensive as on land. What path should the pipe follow in order to minimize the cost?

1st grade
how many miles does the earth travles a minute or second ????

Algebra 2
Problem Solving - A manufacturer of cell phones makes a profit of $25 on a deluxe model and $30 on a standard model. The company wishes to produce at least 80 deluxe models and at least 100 standard models per day. To maintain high quality, the daily production should not exce...

English
what is narrative wring

English
All of Jay answers are correct

7th grade algebra
the difference between a father's age and his son's age if the father's age is three times his son's age

7th grade algebra
the sum of the weights of twin brothers if one weighs four more pounds than the other

7th grade algebra
the value in cents of a number of quarters and the same number of nickels

7th grade math
yes

7th grade math
the difference between a father's age and his son's age if the father's age is three times his son's age

math
the sum of the weights of twin brothers if one weighs four pounds more than the other

7th grade
jordan, your answer is either 18.84 or 18 ft

Microeconomics
Each individual has a budget line in which they follow for expenditures. If the income of the individual increases what is the effect on the budget line? • An increase in the money income shifts the budget line to the right. • An increase in the money income shifts t...

gen studies
identify the advantages and disadvantages of organizational structure. how it affects day to day operation of managing a counseling center for domestic abuse victims

math
which prism has 3 pairs of congruent sides

algebra
what is(x2+2x-3)+(4x^2+9)

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