Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 68

**chemistry**

A certain acetic acid solution has pH = 2.14. Calculate the volume of 0.0900 M KOH required to reach the equivalence point in the titration of 35.0 mL of the acetic acid solution.

**science**

why is gravity on earth and not on the moon i need something to help me start it off

**chemistry**

what volume would 4.3 moles of hydrogen gas occupy at 45 degrees and 3.22 atm?

**Socials**

What does the biome in Kamloops look like? What are the critters and vegetation in this region?

**Science**

K thank u:)

**Science**

That didn't even answer the questions? A b and c were questions not options

**Science**

Consider a neutral atom that has 17 electrons A.) how many protons does it have? B.) what is it's atomic number? C.) which element is it?

**Science**

1. Consider a neutral atom that has 17 electrons A.) how many protons does it have b.) what is it's atomic number c.)which element is it 2. List the following for an atom with 33 protons and 42 neutrons a.) the name of the element b.) the atomic number C.)the number of ele...

**Essay direction clarification**

Shew thanks! You just made my night! Sometimes I obsess too much :) Thank You

**Essay direction clarification**

I am trying to prepare in my head for an essay exam that I will be having tomorrow and I would like to know how you would interpret the professors instructions - "Please prepare to answer one of the following in an essay of at least four paragraphs including an introducti...

**English II - Poisonwood Bible**

Thanks! I will definitely check it out. I have drafted a basic outline like what I intend to write. I have a topic, Leah's overall change and how it changed us. And I have all the evidence written down with page numbers etc. Once again thank you for your help!

**English II - Poisonwood Bible**

I'm trying to come up with a thesis statement also I need help with a question. How does Leah Price's changes in the book change us, the reader? As for my thesis statement, I have sort of an idea of what I want it to be like... Leah alienates herself from the Congolese...

**English - Please help quickly!!**

Thank you, that sounds so much better - and way shorter! I have never been good with thesis statements! Thanks once again!

**English - Please help quickly!!**

I need help with making a thesis statement for an essay I have to write on the book Poisonwood Bible The prompt I have says : Choose a novel or play that depicts a conflict between a parent and a son or daughter. Write an essay in which you analyze the sources of the conflict ...

**math**

Describe and correct the error made in solving the literal equation at the right for n. 2m = -6n + 3. 2m + 3 = -6n. 2m + 3/-6 = n

** math**

There are 25 cars in a parking lot. Nine of the cars are red. The rest of the cars are black and white. A. What percent of cars in the lot are red? Not red? B. describe two ways to determine the percent of cars that are not black given the number of white cars.

**Basic Math**

-11.7

**Physics**

Suppose you are stopped for a traffic light, and an ambulance approaches you from behind with a speed of 19.0 m/s. The siren on the ambulance produces sound with a frequency of 960 Hz as measured when you are at rest relative to the ambulance. The speed of sound in air is 343 ...

**Chemistry**

How many molecules of ethane (C2H6) are present in 0.249 g of C2H6? Enter answer in scientific notation.

**Physics**

Suppose the battery on your phone delivers a current of 0.740 mA (that's milliAmperes) over a time of 4.00 hours. What is the total charge that flows out of the battery during this time? AND How many electrons flow out of the battery during this time?

**stats word problem Please help!**

A. random sample of 50 four year olds attending daycare centers provided a yearly tuition average of 3987$ and the population standard deviation of $630. Find the 90% confidence interval of the true mean. and B. If a daycare center were starting up and wanted to keep tuition l...

**stats word problem Please help!**

A. random sample of 50 four year olds attending daycare centers provided a yearly tuition average of 3987$ and the population standard deviation of $630. Find the 90% confidence interval of the true mean. and B. If a daycare center were starting up and wanted to keep tuition l...

**Math/statistics**

Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on the results. A...

**Math/statistics**

a recent study indicated that 29% of the 100 women over age 55 in the study were widows. a. How large a sample must you take to be 90% confident that the estimate is within 0.05 of the true proportion of women over age 55 who are widows? b. If no estimate of the sample proport...

**statistics**

In a sample of 200 people, 154 said they watched educational television. Find the 90% confidence interval of the true proportion of people who watch educational television. If the television company wanted to publicize the proportion of viewers, do you think it should use the ...

**Math**

Which gender typically watches more television per month? Justify your answer. MALE |. . . . :. . . : .: .. . .: . . . . . FEMALE| . . .:. . . .::.. ::. .. . . | | | | | | | 700 1050 1400 1750 2100 2450 2800

**CHEM**

How did you get that? I'm stuck on getting to 183.18

**Grade 12 chemistry**

I dont understand. in the formula Q=C*M*deltaT, do you use 4.200 kj/mol as C. Is the answer to question one, calculate the heat involved in the trial, 1.19 KJ?

**Grade 12 chemistry**

This is the second reaction: HCl(aq)+NaOH(aq)-->NaCl(aq)+H2O(l) (Heat of neutralization) This reaction involves mixing two solutions: 1.00 mol/L NaOH and 1.00 mol/L HCl. Trial 1: 48.0 mL of the NaOH solution is mixed with 47.5 mL of the HCl. The temperature rises from 22.00...

**Physical Education**

In your role within a structure discuss the importance of communication. Provide examples that you have used. (4)

**Physics**

The combination of an applied force and a frictional force produces a constant total torque of 38.1 Nm on a wheel rotating about a fixed axis. The applied force acts for 7.00 s, during which time, the angular speed of the wheel increases from 2.40 rad/s to 12.5 rad/s. The appl...

**ice skater world problem**

A skater spins with an angular speed of 12.4 rad/s with her arms outstretched. She lowers her arms, decreasing her moment of inertia by a factor of 8.00. Ignoring friction on the skates, what will be the skater's final angular speed?

**Physics**

A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is fastened to the bar at a distance a ...

**Physics: merry-go-round question**

A playground merry-go-round of radius 1.92 m has a moment of inertia 411 kg m2 and is rotating at 10.4 rev/min. A child with mass 38.3 kg jumps on the edge of the merry-go-round. Assuming that the boy's initial speed is negligible, what is the new angular speed of the merr...

**physiology**

i think its between the 2 and 3rd one

**Physics**

I dont understand how you get the answer. What is the Vb, Va and Q?

**Algebra 2**

Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is the x-value v...

**Algebra 2**

i have alot more like this and i dont seem to remeber how to get 'h'

**Algebra 2**

Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is the x-value v...

**Economics**

I need help finding two sources about real estate monetary and fiscal policies. The sources need to help me answer the following questions... How have these policies affected... 1. employment rates for real estate? 2. growth of real estate? 3. prices of homes?

**religion**

i don,t no.

**geometry**

A rectangular garden that is W ft wide is enclosed by 120 ft of fencing. How long is the garden?

**biology**

diffusion

**Math**

Here's a couple examples from my homework. If someone could help me solve this by showing me step by step what to do, it would be so great. Also, any websites that would show me the steps too. Thanks so much. I have to get all my work done by tomorrow and I'm kinda fre...

**Sci 275**

I asked this already but was not clear on what I needed help with. My assignment is on water pollution. Write a 700- to 1,050-word paper in APA format that includes the following: o A brief description of your selected water resource issue and how it originated. o A management...

**Sci 275**

I did not want my paper written for me, I have it started already and am now stuck. For example, I cannot find opposing viewpoints on water pollution.

**Sci 275**

Write a 700- to 1,050-word paper in APA format that includes the following: o A brief description of your selected water resource issue and how it originated. o A management and sustainment plan that you think will alleviate the problem. o Any opposing views of the issue. o Ot...

**Math**

Did you give us all the information? Because I don't know how you'd be able to solve that without knowing the amount of apples and/or oranges.

**Quick question**

Just so I can know in the future, how exactly did you figure those points out? Thanks!

**Algebra**

Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. I'm reposting this because I didn'...

**5th grade**

Well, if you have a calculator (not one that has just the numbers and symbols, a more middle school one. If you don't have one, an older sibling might), there is a fraction to decimal key. It looks like this F◄ ►D, kind of. At least on my calculator, a Texas In...

**algebra**

Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. Thanks!

**Quick question**

So that means the amount of baking soda is the same as 4 vinegar?

**Algebra**

Translate to a system of equations. DO NOT SOLVE. A nontoxic scouring powder is made up of 4 parts baking soda and 1 part vinegar. How much of each ingredient is needed for a 16-oz mixture? What are the two equations? For most problems, I can easily find the info for the two e...

**6th grade Social Studies**

Describe what you think are some of the positive and negative issues related to political action committees and interests groups.

**History**

Who is the best president in your life time? I am going back to high school, so tell me what you think about my answer. Well I think the best President was George Washington for his leadership throughout the Revolutionary War. But since I was not alive when he was in office I ...

**2nd grade english**

what is the verb in this sentence: He's very smart.

**9th grade**

Find the unit rate: $10.99 for 12 slices of pizza

**math**

expressions with possitive and negative exponents. how do u leave no exponents in the denominator?

**English**

dramalanse: salamander

**Algebra**

find the equations of the normals to the curve xy=4 which are parellel to the line 4x-y-2=0

**Kyle College**

find the equations of the normals to the curve xy=4 which are parellel to the line 4x-y-2=0

**chemistry help!!! (clueless)**

how do i find the mass number of chemicals I would think that you would add up the components masses (molecular masses [from periodic table) that make up the chemical... like...HCl (H= 1.008g/mol, Cl= 35.45g/mol) added= 36.458g/mol hope this helps=) Elements have a mass number...

**rere**

this is a stupid website it doesn't help as far as I can tell the experts all go ot sleep by now, leaving the late nite questions til the morning

**science**

what does manipulated varible mean? what does responding varible mean? what does hypothisis mean? In an experiment, a manipulated variable is one that can be easily changed by the xperimenter, such as the length of a pendulum The responding variable will be something that is t...

**Identifying controls and Variables**

i need help with my homework

**Word Unscramble**

rcdemimraora

**chemistry**

Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS ----- thanks!! Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS If this is done in a water solution, then the sodium nitrate will be in solution, as was the Cd(NO3)3 (both ...

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