Monday
November 24, 2014

Posts by Sandy


Total # Posts: 674

Titration
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.
January 23, 2012

science fair
how do you make the following sentence in a if...ans then statement? if you multitask the result won't be as good as you not multitasking depending on what you multitask. thank you
January 22, 2012

Writeacher
Thank YOU!!!
January 22, 2012

Writeacher
Thank you soooo much. you have helped me so much since yesterday, i really appreciate it especially since you helped me removew my doubtings. Again thank you.
January 22, 2012

science fair
maybe making them pat thier head and rub their stomach or hear a lecture and draw while youre hearing it and then answer questions on it
January 22, 2012

science fair
maybe making them pat thier head and rub their stomach or hear a lecture and draw while youre hearing it and then answer questions on it
January 22, 2012

science fair
Writeacher, its me again i just wanted to know if the experiment of the math test and music is enough for the multitasking project or should i include another experiment to prove the hypothesis. thank you soo much.
January 22, 2012

science fair
okay remove the gum...check now, do you think this is enough for the science fair or should i add another experiment? btw You are the best thank you sooooo much for your help Writeacher
January 21, 2012

science fair
should i take out the gum all together, or will the gum add more thought?
January 21, 2012

science fair
music during homework chewing gum during a test i had an idea to make a group to take a test with music and gum. another with gum only and music only and then another group with nothing. and make each group go through each situation and see which situation actually helps. but ...
January 21, 2012

science fair
thank you and i am starting to have second decisions. do you think i should change my idea? im in 9th grade what do you think?
January 21, 2012

science fair
Does multitasking help a person or mess up all tasks?(referring to human reaction) is there any way to make this topic more complex and difficult?
January 21, 2012

auditing
<11{1[3(02)02]}> Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1)
January 8, 2012

math
Pranav reduced the size of a rectangle to a width of 7 inches. What is the new height if it was originally 49 inches wide and 28 inches tall?
December 19, 2011

math
There are 57 students in class of 6th and 7th graders. There are twice as many 6th graders. How many 6th graders?
December 7, 2011

Inter. acct.
You have been retained as a consultant by the company’s Audit Committee of the Board of Director’s, and asked to research three separate issues. First the typical acquisition costs associated with land purchases. Use the facts presented in Exercise 10-1 to illustrate...
December 5, 2011

chemistry
Ti(s)+2Cl2(s)-TiCl4(s) compute theoretical yield in moles 8 mol Ti, 8 mol Cl2
November 25, 2011

chemistry
For A pressure of 25.7 inHg would be how many kilopascals? I did the following, is this correct? 25.7 inHg X 25.4 mm/1in X 101.325 KaPa/760 mmHg = 87.0301 Kapa So: KaPa = 87.0
November 24, 2011

chemistry
A pressure of 25.7 inHg would be how many kilopascals? I received an answer but the person who helped me used mmHg. How do I convert inHg into mmHg to solve my questions. Help please
November 24, 2011

chemistry
For A pressure of 25.7 inHg would be how many kilopascals? This is the answer I received: 25.7 mmHg x (101.325 kPa/760.0 mmHg) The mmHg cancel each other out So 98.659 kPa My Question is I started out with inHg, and not mmHg. Would it be the same since I'm starting with ...
November 24, 2011

chemistry
Could someone please tell me how to solve this problem: A pressure of 25.7 inHg would be how many kilopascals? Could you please list the steps on solving it. Thanks
November 24, 2011

chemistry
how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? OK, I did the following: P₁ = 28.4 L P₂ = ? T&#...
November 22, 2011

chemistry
Question: how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? Could someone give me the setup for this? I know I ...
November 22, 2011

chemistry
A 28.4 L sample of methane gas is heated from 35.0 C to 76.0 C. The initial pressure of the gas is 1.00 atm at 35.0 C. Assuming constant volume, what is the final pressure of the gas
November 20, 2011

physics
Consider a roller coaster as it travels near the bottom of its track as sketched in the figure below. At this point, the normal force on the roller coaster is three times its weight. If the speed of the roller coaster is 27 m/s, what is the radius of curvature of the track? I ...
November 1, 2011

physics
In the figure below, m1 = 9.5 kg and m2 = 4.0 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30.
October 30, 2011

4th grade math
What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
October 26, 2011

4th grade math
What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
October 26, 2011

social studies
Tell your parents why you want to be drug free?
October 25, 2011

english (parts of a sentence)
Is (the worried lady) in the following sentence the subject or is it a adjective phrase? Gazing over her shoulder, the worried lady called for help. Can (my computer problem)in the following sentence be considered a dependent clause? If not could you explain what it is? Thanks...
October 21, 2011

science
what you could see at fire station?
October 13, 2011

social studies
why would 'STOP,DROP and ROLL' be effective to put out a fire?
October 11, 2011

science project
abbreviation for HOT
October 5, 2011

Science
6 m/s
October 2, 2011

science
what we can made out of trees?
September 27, 2011

Physics
Why would this happen? Aren't the vertical and horizontal components independent of each other thus making the swimmer swimming perpendicular to the shore arrive first at the opposite shore since the vertical component is the largest of the three other swimmers. That's...
September 21, 2011

social studies
how johnny chapman becomes johnny appleseed
September 21, 2011

6th grade math
16
September 18, 2011

Chemistry
If I have a bottle containing 12 ozs (355mls)and the alcohol is 48% by volume, how many mls of alcohol arer in the solution?
September 17, 2011

social studies
what are needs in our community?what are wants in our community?
September 14, 2011

science
what we made out of trees?
September 12, 2011

social studies
what are needs in your home?what are wants in your home?
September 12, 2011

chem
why is cellulose a tough material? why does cellulose need to be so tough? please help
September 8, 2011

math
Please help me! f(x)=(x+1)^3-2 1. How do I find the x and y intercepts, if any? 2. Describe the long term behavior of this function. Give the power function that F resembles.
August 30, 2011

englissh
I Think 16.c (DLL will not directly Communicates with PC's hardware) 17.d 18.c 19.c 20.d plz check it
August 28, 2011

chemistry
It would be difficult to separate Francium from ores. Francium is on the bottom left of the periodic table, therefore it loses electrons easily making it very difficult to give it the electrons necessary to separate it from ores
August 25, 2011

chemistry
#1)hydrochloric acid is a relatively strong acid . imagine that HCl is added to a buffer solution containing the weak acid phosphoric acid and a salt a)will HCl react with weak acid (H3PO4), or will it react with the salt (Na2HPO4)? b)one product of this reaction will be a new...
August 23, 2011

history
what were some social, political, and economic changes resulting from the hundred years war? And how did the war begin?
August 17, 2011

theology
if there is 4 of something and it is called: "Quadruple" What is the name given to 13 of something; like 4 babies are called: Quadruplets, what are 13 babies called?
August 15, 2011

Math
How would you do the inverse of this function: -1/7sqrt(16-x^2)? -I know you switch the x and y and solve for y. I keep on getting a weird answer. Help!
August 10, 2011

MATH
SIMPLIFY: 2+3x10/5x3-9=???
July 15, 2011

MATH
18 INCHES
July 15, 2011

MATH
FIND A PERIMETER OF A TRIANGLE WHERE ONE SIDE IS 2 INCHES, ONE SIDE IS 6 INCHES, ANOTHER SIDE IS 10 INCHES???
July 15, 2011

MATH
54
July 15, 2011

MATH
FIND THE AREA OF A TRIANGLE IF THE BASE (b) IS 9 INCHES AND THE HEIGHT (h) IS = 12 INCHES???
July 15, 2011

MATH
IT ONLY SAYS TO SIMPLIFY
July 15, 2011

MATH
BUT THERE IS NO PARENTHESES MS.?? I'M STUCK
July 15, 2011

MATH
2+3x10 DIVIDED BY 5x3-9= ????
July 15, 2011

Med terms
Dailys= Days
July 12, 2011

chemistry
which of the following is reduced in the reaction: Cu(NO3)2 + Zn --- Zn(NO3)2 + Cu
July 11, 2011

chemistry
Consider the reaction, C2H4 (g) + H2 (g)- C2H6 (g) where -137kJ of heat is released. How many kilojoules are released when 55.3g of C2H4 reacts?
July 10, 2011

science
what scientic evidence would you need to seettle the claim that famines are caused more by human than enviromental
July 4, 2011

Chemistry
A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and 0.200 mol of CH3COONa in 1.00 L of water. 1.00 mL of 10.0 M HCl is added to a 100 mL portion of this solution. What is the final pH of the resulting solution? Ka of CH3COOH = 1.8 x 10¯5
June 26, 2011

Business Math
Cassandra is repaying an installment loan of $3,500 with 20 equal monthly payments of $196 each. what is the annual percentage rate of the loan?
June 19, 2011

Mathematics for business and Finance
The Patel family recently purchased a home, taking out a mortgage of $235,000 at 8 1/2% for 25 years. Excluding taxes and insurance, what is the monthly PITI payment of their loan?
May 27, 2011

Chemistry
HC2H3O2 + CH3(CH2)4OH (H2SO4)=?
May 8, 2011

Physical science
how can i calculate the number of: 1.molecules in 30g water.2.atoms in 50 dm^3 nitrogen gas.3.nucleons in 10 cm^3 flourine gas?
May 7, 2011

Math(Probability)
Let X and Y equal the outcomes when two fair six-sided dice are rolled. Let W = X + Y. Assuming independence, find the p.m.f. of W when (a) The first die has three faces numbered 0 and three faces numbered 2, and the second die has its faces numbered 0, 1, 4, 5, 8, and 9. (b...
April 27, 2011

please help` ORGANIC
synthesize olivetol from benzene
April 27, 2011

science
how do you make 5-Pentyl-1,3-benzenediol from just benzene? 1.Benzene + Br2 +FeBr3-->Benzene-Br??
April 26, 2011

Physics
15 cm in front
April 25, 2011

HSM 220 Week 6 Budget Matrix
Yes you are absolutely correct!
April 20, 2011

Environmental Science
I have been studying for several hours and am having problems with finding the answer to this question. Can anyone help please? Conservationists argue that watershed protection and other ecological functions of forget are more economically valuable than timber. Timber ...
April 18, 2011

math/algebra
please show me the mathimatical equation so I can set this up properly: The area of a rectangular patio is 54 sq ft. Find the length and width of the patio (Hint: A=lw)
April 14, 2011

physics
if you have an element that starts out at 40g and has a half-life of 10 days, you keep it for 30 days- how much doe you end up with? .
April 7, 2011

AP Calculus
integrate |sint(t^2)| dt with 0<t<3
April 6, 2011

math
A gun is fired from a bunker of 2m deep with an initial velocity of 500m/s at an angle of pi/6 a) Find the parametric equations of the position of the projectile b) Find the range of the projectile to the nearest meter. c) Find the maximum height of the projectile to the ...
March 17, 2011

statistics
A 99% confidence interval for population variance is being formulated based on a sample of 16 observations. What are appropriate values for X^2
March 13, 2011

Maths - check please
if boston is 14 feet above sea level and the ice cap is 680,000 cubic miles of water what impact would boston have?
March 13, 2011

AP Calculus
An object moves along the x-axis with a velocity of v(t) = sin(pi/3)t for time t greater than or equal to 0. What is the total distance traveled by the object over the time interval 0 less than or equal to t less than or equal to 4?
March 9, 2011

Geometry
The vertices of ∆GHJ are G(-2,3), and J(1,3). If ∆KLM ≅ ∆GHJ, fing LM.
March 8, 2011

geometry
what is true about the slopes of two perpendicular lines niether of which is vertical?
March 8, 2011

geometry
If a triangle side lengths of 12 cm, 35 cm, and 37 cm, what type of angle is it?
March 8, 2011

Bio Medical Science
What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
February 26, 2011

Social Studies
What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
February 25, 2011

physical science
A student is traveling in a car with a constant velocity has a kinetic energy 1.0 x 10^4 J. What is the speedometer reading of the car in km/h.
February 20, 2011

trig
From two points each on the opposite sides of a river,the angles of elevations of the top of an 80ft. tree are 60 degree & 30 degree.the points & the tree are in the same straight line,which is perpendicular to the river.how wide is the river?
February 17, 2011

poetry
whats the meaning of the poem SOMEWHERE TO PARIS BY RICHARD BLANCO?
February 8, 2011

AP Calculus
Suppose that f(0) = 4 and f'(x)< or equal to 2 for x>0. Apply the MVT to the interval [0 , 3] to prove that f(3) < or equal to 10
February 8, 2011

AP Calculus
Determine the critical numbers for y=sq root of (x^2 - 2x -15)
February 8, 2011

AP Calculus
Locate the absolute extrema for f(x) = 3/x-1
February 8, 2011

AP Calculus
Determine whether Rolle's Theorem is valid f(x) = 3 - |x - 2| for [-1, 5] if so, find c. if not, tell why.
February 7, 2011

math
The masses of newborn children are normally distributed with a mean of 3.4 kg and a standard deviation of 0.8 kg. A newborn is at risk if the baby'd mass falls in the lowest 4%. These babies have a mass of less than ____?
January 26, 2011

math
A bag contains 3 red, 5 black and 5 blue marbles. Four marbles are selected at random without replacement: - the probability that all 4 are black? -the probability that exactly two are blue and none are red?
January 25, 2011

PHYSICS
WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG
January 19, 2011

PHYSICS
WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG
January 19, 2011

Finance
Blue Moon Corporation has one million shares of common stock outstanding. In a typical annual election for the board of directors, shareholders representing 70 percent of the shares outstanding exercise their right to vote. The company has nine members on it board of directors...
January 10, 2011

Finance
The following stock quotation were recently reported in The Wall Street Journal: 10.3 AT&T T 3.6 21 39.43 0.26 0.1 Boeing BA 1.6 31 88.91 -0.85 -8.7 JohnsJohns JNJ 2.5 16 60.26 -0.08 a. What are the dividend yields on the common stock of AT&T Boeing, and Johnson & Johnson? b. ...
January 10, 2011

Finance
Hooks Athletics, Inc., has outstanding a preferred stock with a par value of $30 that pays a dividend of $2.50. The preferred stock is redeemable at the option of the stockholder in 10 years at a price equal to $30. The stock may be called for redemption by the company in 15 ...
January 10, 2011

Finance
Determine the value of a share of DuPont Series A $4.50 cumulative preferred stock, no par, to an investor who requies a 9 percent rate of return on this security. The issue is callable at $120 per share plus accrued dividens. However, the issue is not expected to be called at...
January 10, 2011

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