Saturday

April 19, 2014

April 19, 2014

Total # Posts: 43

**Customary units**

A sculptor has a 3lb block of clay he adds 24 oz of clay to the block in order to make a sculptor. What is the total weight of the clay before he stars to sculp. (Have to show work)

**statistics**

s = sqrt { [ 9 + 1 + 1 + 9 ] / 3 } = sqrt (20 / 3) = sqrt ( 6.67 ) = 2.58 how they get the 2.58

**Finance**

Expected Return pg 383 7th edition Corporate Finance Projected Dividend Current Dividend X (1 + Growth Rate) $2.20 X (1 + 0.06) $2.20 X 1.06 $2.33 Exp Ret = New Dividend/Current Selling Price + Growth Rate Exp Ret = $2.33 / $43 + 0.06 Exp Ret = 0.0541 + 0.06 Exp Ret = 11.42% W...

**Significant Figures**

Add (9.3x10^3) + (9.3x10^4) + (0.011x10^6) using correct significant figures?

**MAtH**

how did you get pi/6?? when i graphed it (on a calc in "radians" mode) i got the first intersection point at (1.04...., .5)

**MAtH**

The graph of y=1/2 and the graph of y=cosx intersect in an infinite number of points. What is the greatest possible slope of a line drawn from the origin to one of these points?

**Math**

Is i^2=-1 for how many integers N is (N+i)^4 an integer? so far i have factored out (N+i)^4 to be ... n^4+2n^2+1 i would suggest checking that, but from there i don't know where to go...doesn't it work for every integer?

**math**

can someone explain that??? because if you do 1/2 of 17, 1/3 of 17, and 1/9 of 17 than compare it to what they actually got...they ALL got more than their fair share... is that the answer than? how is it just the oldest???

**Chem 2068 lab**

thank you for your help!!

**Chem 2068 lab**

Did i get it wrong? It has KHP molar mass at 204.33 g/mol and we use 0.556 g of KHP dissolved in water. THen if 14.48 mL of NaOH is used to reach endpoint, it needs the concentration of NaOH?

**Chem 2068 lab**

Once I have the molarity for KHP which is 0.0027 M, and i add 14.48 mL of NaOH to the solution, what is the concentration of NaOH in the solution.

**7th grade**

the 4*0=hhhh

**MATH**

WHAT FRACTION IS GREATER THAN OR EQUAL TO ONE?

**Chemistry 152**

For a certain reaction, the enthalpy change is -148.5 kJ, the entropy change is 256 J/K, and the free energy change is -250.1 kJ. At what temperature is the reaction occurring, in C? Choose one answer. a. 85 b. 102 c. 124 d. 158 e. 210 I keep using equation delta G=delta H-T(d...

**Chemistry 152**

How many of the following processes would you expect to be spontaneous at 298K and 1atm? dissolving sugar in water decomposing NaCl to the elements climbing a mountain H2O (l)------H2(g)+O2(g) Choose one answer. a. 0 b. 1 c. 2 d. 3 e. 4 I thought that it might be 3 of the foll...

**Chemistry 152**

For a certain reaction, the enthalpy change is -148.5 kJ, the entropy change is 256 J/K, and the free energy change is -250.1 kJ. At what temperature is the reaction occurring, in C? Choose one answer. a. 85 b. 102 c. 124 d. 158 e. 210

**Chemistyr 152**

Given the following data, what is the value of delta Gf (in kJ) for N2O4 (g) at 25C. N2O4(g)-----2NO2(g) Keq= 0.144 delta Gf: ? 51.30 I thought of using the equation: delta G-RTlnQ I am not sure if thats what I should use to find N2O4 though???? Choose one answer. a. 46.40 b. ...

**Chemistry 152**

For which of the following processes would the entropy change be positive? Choose one answer. a. Hg(l)(45C)----- Hg(l)(25C) b. H2O(l----H2O(s) c. He (g) (1 atm)------- He(g)(10 atm) d. I2(s)------I2(aq) e. Ag+ (aq) +Br-(aq)------AgBr(s) I figure that it wasnt A or B but the ot...

**CHEM 152**

Calculate the molar solubility of calcium carbonate in 0.10 M Ca(NO3)2. (Ksp= 2.8 x 10-8)

**CHEM 152**

At 50oC, the solubility of silver chloride, AgCl, is 5.2 x 10-4 g/100 mL. Calculate the Ksp at this temperature.

**CHEM 152**

Will a precipitate be observed if 0.10 mol Ag+ and 0.001 mol SO42- are added to make 1.0 L of solution? (Ksp = 1.4 x 10-5)

**CHM 152**

At 20oC, a 2.32 M aqueous solution of Ammonium Chloride has a density of 1.0344g/ml. WHat is the molality of Ammonium Chloride in the solution? The formula weight of NH4Cl is 53.50 g/mol?? I am not sure how to incorporate the density into the problem to come up with how to sta...

**CHM 152**

The activation energy for a reaction is 37.6 kJ/mole. The rate constant for the reaction is 5.4 x 10-3 s-1 at 45 oC, Calculate the rate constant at 145 oC.

**CHM 152**

The freezing point of an aqueous solution of glucose was measured to be -1.52 oC. What is the osmotic pressure, in atm, of 100 mL of this solution at 25.0 oC? (Kf = 1.86 oC/m) When I calculated it out I got 16.79 atm but the answer was wrong dont know what I messed up on.

**CHM 152**

Thanks I got it and yep it is correct.

**CHM 152**

I am nit sure where to start.

**CHM 152**

A 0.750 L bottle of a French Merlot is said to contain 12.5% alcohol by volume. How much of the liquid, in mL, in the bottle is water?

**CHM 152**

An automobile antifreeze contains equal volumes of ethylene glycol (d=1.114 g/mL and FW = 62.07) and water (d=1.00 g/mL) at 25oC. The solution has a density of 1.06 g/mL. What is the molarity of ethylene glycol in the solution?

**CHM 152**

How many gram of Fe+3 are required to make 1.0 L of an aqueous solution of 10 ppm Fe+3? Assume density of water is 1.00 g/mL.

**6th grade**

The men's outdoor world regard in the high jump 2.45 meters and 8ft 0.5 inches. The women outdoor record in high jump 2.09 meters and 6ft 10.25in How much higher is the men's high jump record?

**American Democracy**

i think it is D.

**American Democracy**

The greates threat to individual rights is: A> the fact that some basic rights,such as privacy,are not expressly listed in the bill of rights B> a determined majority backed by elected leaders eager to carry out its will C> the refusal of lower courts to accept the su...

**American Democracy**

i think it is D.

**American Democracy**

Dramatic change in public opinion on basic issues in uncommon and is almost always a consequence of A> a change in the policy position of the president B> an extraordinary change in national conditions C> popular satisfaction with a government initiative D> a chang...

**American Democracy**

Multiple choice In recent decades lobbyists in washington d.c. have increasingly A> targeted the executive branch in their efforts to influence policy dedision B> worked to defeat incumbent members of congess in order to replace them with members who would be more suppor...

**American Democracy**

Multiple choice Q. The discretionary power of judges is less tan that of elected officials because judges: A> are prohibited from relying on personal judgment when deciding as issue B> must make decisions that can be justified in terms of existing provisions of the law C...

**American Democracy**

Multiple choice Q. All of the following statements correctly describe the typical independent agency except: A> it has a narrower area of responsibility than cabinet departments B> its head is appointed by an independent commision C> it is devided into a number of sma...

**American Democracy**

Multiple choice Q The presidents constitutional roles,such as chief executive and commander-in-chief: A> are bassed on very precise constitutional grants of power B> are rooted in tradition only;they have no basis in the language of the constitution C> are not subject...

**American democracy**

i think either c or d.

**American democracy**

I do not appreciate your comment! And first of all iam not throwing away mt money. And iam not mooching answers. I have tried over and over and over to find the anwers and have not been able to...... You should not assume something until you have the facts! Iam not using this ...

**American democracy**

mustiple choice Q. The congessional lawmaking process is biased toward: A> bold new initiatives rather than small adjustments in existing legislative programs B> blocking legislation rather than passing it C> national interest at the expense of local ones D> foreig...

**college> The American Democracy**

i think it is A.

**college> The American Democracy**

for these questions pick a,b.c or d. #6 in recent decades,lobbyists in washington d.c. have incressingly: A. targeted executive branch in their efforts to influence policy decisions. B. worked to defeat incumbent members congress in order to replace them with member who would ...

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