Friday

November 28, 2014

November 28, 2014

Total # Posts: 42

**chemistry**

calculate the amount of heat released when 77.0g of steam at 104.5 celsius cools to ice at 0.0 celsius. I don't understand the steps to take to solve this problem. Can someone walk me through it please?
*November 12, 2014*

**Chemistry**

if 10.0L of neon gas exerts a pressure of 125psi at 373K, what is the number of moles of gas? I don't know how to set this up. I am using ideal gas law N=PV/RT but my answer is not matching. I converted the 125psi to 8.50atm N= 8.50atm*10.0L/1 k * 373k*1 mol/1 atm * 0.0821...
*November 12, 2014*

**Health**

I believe it is the contraction phase because diastole is the relaxing phase.
*November 12, 2014*

**Chemistry-It is correct**

It is correct.
*October 25, 2014*

**Chemistry-Help Dr. Bob**

How many mL of Carbon Dioxide gas at STP are produced from the decomposition of 4.50g of Ferric Carbonate? This is How I tried to solve it..... 4.50g Fe12(CO3)3* 1 molFe2(CO3)3/291.72g Fe2(CO3)3* 3 mol CO2/1 mol Fe2(CO3)3* 22.4L CO2/1mol CO2* 1000ml of CO2/1 L of CO2 = 1036.57...
*October 25, 2014*

**Chemistry**

I just calculated it wrong. My answer should have been 1.63g of Cl2
*October 25, 2014*

**Chemistry**

How many grams of chlorine gas must react to give 4.82g of BiCl3? 2Bi(s)+3Cl2(g)→2BiCl3(s) My answer was wrong/please review and tell me where I went wrong. 4.82g BiCl3*1mol BiCl3/215.33g BiCl3*3 mol Cl2/2 mol Bicl3* 70.9g Cl2/1 mol Cl2=6.50 g Cl2
*October 25, 2014*

**Chemistry**

Thank you, that was the problem. I got the MnCl2 mixed up with the MnSO4..... Thank you for your time. I really appreciate it!!! Have a blessed night.
*October 24, 2014*

**Chemistry**

Ok, I know it is wrong, I just checked. Can someone please show me how to do this equation and where I went wrong? Thank you....
*October 24, 2014*

**Chemistry**

Can you tell me if this is correct? 1. The equation is balanced already. 45.0ml of HCl*36.46g HCl/22,400ml HCl*MnCl/2HCl*90.39g of MnCl2/1 mol MnCl2= 13.2g MnCl2
*October 24, 2014*

**Chemistry**

What mass of Manganese (II) Chloride must react with sulfuric acid to release 45.0ml of hydrogen chloride gas at STP? Please list step by step.
*October 24, 2014*

**College math**

f(x)=x^2+7 upward 8 units
*March 20, 2014*

**math**

Find the absolute value of: 27.8
*January 24, 2014*

**math**

Find the absolute value of: -18.7
*January 24, 2014*

**math**

Find the reciprocal: -212/13
*January 24, 2014*

**math**

Solve the equation using the addition property of equality. p – 1 = 4
*January 24, 2014*

**algebra**

3/7 of what number is 9?
*December 21, 2013*

**contemporary math**

Question 1. 1. Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? (Points
*November 22, 2013*

**Electricity and Electronics**

Actually, CHILL...the correct answer for #15 is B, and the correct answer for #19 is C. My daughter just took this exam & she made a 100 on it.
*October 3, 2013*

**Child development**

C. parallel play
*April 25, 2013*

**Chemistry**

If I spill 100ml of a .5 M H3PO4 solution, how many grams of NaOH should be dissolved in water and added to the spill to neutralize the acid?
*October 10, 2012*

**Chemistry**

If I spill 100ml of a .5 M H3PO4 solution, how many grams of NaOH should be dissolved in water and added to the spill to neutralize the acid?
*October 10, 2012*

**Algebra**

An isotope of Glopenium disintegrates according to the formula A(t) = Ao2^-0.0345t where Ao is the initial mass of the substance and t is the time in years. If there are 2 milligrams of Glopenium now, find the number of milligrams that will be left after 35 years. Your answer ...
*October 21, 2011*

**math**

i dont know ask somebody ask your mom you stupid
*September 30, 2011*

**Psychology **

I think that it is B
*July 27, 2011*

**algebra**

While working at The Nut House you are asked to make a mixture of raisins and nuts worth $2.75/lb. You have 12 pounds of raisins worth $1.25/lb. How many pounds of nuts worth $4.00/lb should you add to the raisins to get the right-priced mix? I have no idea how to solve this. ...
*April 15, 2011*

**ALEGBRA1**

IDENTIFY THE QUADRANT FOR EACH POINT(-1,6)
*April 13, 2011*

**math**

what percent is 14 of 132
*March 17, 2011*

**ALGEBRA**

what is your down payment? 20% ($50,000) or less
*March 15, 2011*

**Government**

c the standing committees in the house and senate were the bill originated.
*February 20, 2011*

**marketing**

Please will you help me with this assignment? It is due on Friday the 20th of May 2011. Thank you very much Loretta Marshall
*February 17, 2011*

**finance**

equipment cost $20,000 and is financed over a period of five years at an interest rate of 12%...What is the monthly payment...What is the loan balance at the end of four years and how much interest will have been paid on the loan after five years?
*December 1, 2010*

**nutrition**

Case Study: Diet for a Patient with Chronic Hunger, Iron Deficiency Anemia, and Lead Poisoning Jonathan, a two-and-a-half-year-old, lives with his mother and brothers at his grandmother's house in Chicago. His mother, Anita, works at a pharmacy to support the family. ...
*April 29, 2010*

**human resources**

A process involveds drilling holes that are supposed to be 3 inches deep. If it is known that the quality cost of a hole drilled 2.95 inches deep is $5.00, what is Taguchi's quality loss function for this process?
*April 19, 2010*

**Maths**

Using the binomial theroem to estimate 6.07^2 ive got 6^2(1+0.01)^2 but im not sure if its right and i dont know where to go for here
*November 29, 2009*

**Stat**

1. P 2. NP 3. NP 4. NP 5. P 6. NP 7. P 8. P
*October 25, 2009*

**10th grade**

reduce each rational expression into lowest terms. 2y+4/3y+6
*September 10, 2009*

**10th grade math**

oh wow haha. I see. thank you!
*September 10, 2009*

**10th grade math**

Ok that's what I thought. I tried to do that. -2 x 1=-2 -2 + 1=-1 2 x 1=3 2+1=3 -1 x 2=-2 -1+2=1 I don't know what other numbers multiply to 2.
*September 10, 2009*

**10th grade math**

Never heard of diamond. I've heard of FOIL.
*September 10, 2009*

**10th grade math**

How do I factor 4x^2-12x+8? so far I took out the Greatest Common Factor. 4(x^2-3x+2) What next?
*September 10, 2009*

**PHYSICS!!!HELP！！**

The speed of a transverse wave on a string is 450 m/s, while the wavelength is 0.18m. The amplitude of the wave is 2.0mm. How much time is required for a particle of the string to move through a total distance of 1.0km? I NEED SOME HINTS TO DO IT!!!PLEASE HELP!!!THANKS!!!!!
*March 2, 2008*

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