Wednesday
August 20, 2014

Posts by Reese


Total # Posts: 31

chemistry dilution
thanks Devron and DrBo222
February 27, 2013

chemistry dilution
Given VLP with concentration 200ug/mL, dilute to 3ug/100ul. Please help me with this; many thanks
February 27, 2013

algebra
Allison drove home at 66 mph, but her brother Austin, who left at the same time, could drive at only 48 mph. When Allison arrived, Austin still had 54 miles to go. How far did Allison drive?
January 22, 2013

Math
Alicia had 2 1/2 yards of ribbon. She used 1/3 of the ribbon on the costume and 25% on a bracelet. How many yards did she use?
December 6, 2012

pre calculus
are you an online tutor
September 16, 2012

Staistics
17 green marbles and 14 white marbles what is the probability of choosing a white marble first chosen without replacement was a green marble
November 8, 2011

english
I am having trouble understanding compound verbs and subjects can someone help for example what is the compound subject and verb of "Cats have long been valued for their skills as a hunters."
September 14, 2011

english
what is the compound verb & subject of the sentence "local governments and citizen groups often employ city planners." I don't understand compound verbs
September 14, 2011

Spanish
Number 47 is "te doy" since the subject is first person singular, "Yo". Even though the question is asked in plural form, her mother when answering is breaking up the answer by mentioning what she is giving her first. Number 49 is A) Les damos, since this ...
May 6, 2011

Physics
Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit Physics - drwls, Thursday, May 5, 2011 at 8:51am There is a ...
May 5, 2011

Physics
Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit Physics - drwls, Thursday, May 5, 2011 at 8:51am There is a ...
May 5, 2011

Physics
Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit
May 5, 2011

Physics
Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit).
May 4, 2011

Gem=neral Chemistry 106
A gas occupying a volume of 806 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
February 28, 2011

Visual Basic
First off, Thank you MathMate. As for it being incomplete, I'm in the process of writing it, I've just run into a wall, really. The commission structure is Commission = Commission rate * (Sales price - Cost Value) I was told by the professor to use one of the hands-on ...
February 25, 2011

Visual Basic
Alright, so I'm trying to code a program to where I can plug in two numbers and get a commission cost out of them. I'm having a hard time setting up the code, and I'm really looking for some guidance. I have this as the code so far: Public Class Form1 'Declare ...
February 25, 2011

Physics
An athlete starts at point A and runs at a constant speed of 5.40 around a round track 150m in diameter. Find the x component of this runner's average acceleration between points A and B. I dont even know how to start. Please help!
September 12, 2010

PHYSICS
A 120-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 450 N. For the first 11 m the floor is frictionless, and for the next 11 m the coefficient of friction is 0.30. What is the final speed of the crate?
March 17, 2010

English
How can i write 5 sentences on the topic education using a noun, pronoun, verb, adverb, adjective and preposition
October 17, 2009

physics
A ball thrown horizontally at 17.0 m/s from the roof of a building lands 36.3 m from the base of the building. How tall is the building? could someone PLEASE tell me how to go about solving this problem!
May 31, 2009

CHEMISTRY!
A zero-order reaction has a constant rate of 3.40×10−4 M/s. If after 80.0 seconds the concentration has dropped to 6.00×10−2 M, what was the initial concentration?
February 25, 2009

Chemistry!
The rate constant for a certain reaction is k = 5.00×10−3 s-1 . If the initial reactant concentration was 0.950 M , what will the concentration be after 8.00 minutes?
February 25, 2009

chemistry
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 114 kj of heat?
February 15, 2009

chemistry
Use Henry's law to determine the molar solubility of helium at a pressure of 1.5 atm and 25 degrees celsius . this is what I know... Sgas = kH x Pgas so then I plugged in... Sgas = 3.7 x 10-4 x 1.5 my answer was .055 and it is wrong. could someone please help show me what ...
February 15, 2009

chemistry
which of the following factors affect the vapor pressure of a liquid? amount of liquid atmospheric pressure addition of solute temperature type of liquid surface area of the liquid
February 7, 2009

chemistry
how much heat (in KJ) is evolved in coverting 1.00 mol of steam at 135.0 degrees celcius to ice at -45.0 degrees celcius? the heat capacity of steam is 12.0 J/g * C and ice is 2.09 J/c * C.
February 7, 2009

chemistry
a 50.0 ml sample of water is heated to its boiling point. how much heat (in KJ) is required to vaporize it? (assume a density of 1.00g/ml).
February 7, 2009

Science
I need to know what the source of energy which causes mountain building by folding or faulting? What form(s) of energy is involved? This was the only question I need help with so thanks a bunch for the help!!!! :-D
November 5, 2008

math
nicole was 1/2 as old as she will be in 8 years . how old is nicole
April 16, 2008

Business and Technology
tariffs, quotes and VERs? Advantage or disadvantage?
May 10, 2007

Math
6*1/2 3 pretty much 6 X .5 which is the half of 6 which is 3!
February 5, 2007

Pages: 1

Search
Members