# Questions Asked onJuly 30, 2012

1. ## Chemistry

If the rate of formation of ammonia is 0.345 M/s, what is the rate of disappearance of N2? 1/2N2(g)+3/2H2(g)-->NH3(g) a. 0.173 M/s b. 0.345 M/s c. 0.690 M/s d. 245 M/s e. 0.518 M/s

2. ## Chemistry

Given the following data, determine the rate constant of the reaction 2NO(g) + Cl2(g) 2NOCl(g) Experiment [NO] (M) [Cl2] (M) Rate (M/s) 1 0.0300 0.0100 3.4 x 10–4 2 0.0150 0.0100 8.5 x 10–5 3 0.0150 0.0400 3.4 x 10–4 a. 1.13 M –2s–1 b. 9.44 M

3. ## physics

The area shown is the boundary of a magnetic ﬁeld directed in the positive z direction. An electron with a velocity along the x-axis enters the ﬁeld at coordinates (x, y) = (−2 m, 0) and exits 0.35 µs later at point A whose coordinates are (x, y) =

4. ## stats 101

how do you find the lower class limit,upper class limit, class width, class midpoint, and class boundaries from a set of frequencies data

5. ## Chemistry

Which of the following is an oxidation-reduction (redox) reaction? A. 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g) B. 2NaN3(g) → 2Na(g) + 3N2(g) C. 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) D. Fe(s) + Ni(NO3)2(aq) → Fe(NO3)2(aq) + Ni(s) E. all of the above

6. ## sat math

At a certain hospital, 89 children were born in the month of June. If more children were born on the fifteenth of June than on any other day in June, what is the least number of children that could have been born on the fifteenth of June? The number of

7. ## Pharmacy Math

If you diluted 95ml of a 7% benzocaine lotion to 5% how much could you produce? ___

8. ## english

Identify the simple predicate in the following sentence. Our basketball team will play against Wilson High School on Friday night.

9. ## Chemistry

The standard molar entropy of lead(II) bromide (PbBr2) is 161 J/mol • K. What is the entropy of 2.45 g of PbBr2? a. +1.07 J/K b. –1.07 J/K c. +161 J/K d. –161 J/K e. 0 J/K

10. ## Dynamics

A stone is thrown vertically upward from the top of a 30m high building with a velocity of 15m/s. Taking the acceleration of stone as 9.81 m/s2. And taking that as constant, determine a) the velocity v and elevations sy of stone above the ground at any

11. ## Chemistry

. In a biochemical reaction, A + B-->C with äG = 30 kJ/mol. Which of the following reactions might be effectively coupled to this reaction so that it becomes more spontaneous? I. C + D are the reactants, and B + E are the products äG = -40 kJ/mol II. C +

12. ## geometry

Alex plots 4 points K, L, M, and N. He joins points K and L and points M and N with straight lines as shown. Alex made the following statements about the points. Statement 1: and intersect on the same plane. Statement 2: and intersect at point P. Which

13. ## human resources

1. An example of internally aligning HR practices is: a. implementing an employee dress code that increases customer satisfaction. b. creating a recruitment plan that targets the predominate groups in the organizations labor market. c. implementing a

14. ## Calculus 1 Integration Trig Inverse

integral of (4/(x times the square root of (x^2-1)) + (1+x+x^3)/(1+x^2)dx

15. ## physics

a uniform pole 20 ft. long weighing 80 lbs is supported by a boy 2 ft. from end a and a man 5 ft. from end b. at what point should a load of 100 lbs be placed so that the man will support twice as much as the boy?

16. ## geometry

A room is 11ft by 21ft and it needs painted. The ceiling is 8ft above the floor. There are two windows in the room, each is 3ft by 4ft. The door is 2.5ft by 6.5ft. a)Find the area the walls and ceiling to be painted. b)One gallon of paint covers 72.63 sq

17. ## math

find the remainder when 13^16 + 17^12 is divided by 221.

18. ## statistics

In a time-use study, 20 randomly selected managers were found to spend a mean of 2.40 hours each day on paperwork. The standard deviation of the the 20 scores is 1.30. Also, the sample data appear to have a bell-shaped distribution. Construct the 95%

19. ## Chemistry

Indicate which of the following has the highest entropy at 298 K. 0.5 g of HCN 1 mol of HCN 2 kg of HCN 2 mol of HCN All of the above have the same entropy at 298 K.

20. ## Chemistry

If at a certain instant during the course of the reaction 2 NO2(g) + F2(g) ¨ 2 NO2F(g), the rate of formation of the product were 0.16 mol/L∙s, how fast would the F2 be disappearing (also in mol/L∙s) at that same instant in time? A) 0.16 mol/L∙s

21. ## Chemistry

A nine liter tank has 150 atmospheres of bromine in it at 27°C. What is the added mass of the tank due to the gas?

22. ## chem

what volume of 1M NaOH is needed for the reaction with 1L of 1M HCl?

23. ## Chemistry

How much ethanol C2H50H in liters d=0.789g/ml must be dissolved in water to produce 190.5 of 1.65M c2H50H ? Molarity problem. Who helps me to solve it for me. My calculation 0.789g/ml x 1000ml/46.06 = 17.12M 17.12M = 190.5 x 1.65 17.12M = 314.325 x=

24. ## maths

solve the word problem (rates per kg) 1) Mary buys 7 kg peaches,and 5 kg bananas . what is the totala cost? 2)Sarah buys 1kg apple for herself and another 1 kg grapes for her brother . she also buys 2 kg peaches . what is the total cost?

25. ## maths

1) 11kg 2)4kg

26. ## Inorganic Chemistry

1) 5.0 mL of 6.0 x 10^-4 potassium 5.0 mL of the solution prepared above are then mixed with

27. ## Maths B - Population Growth

The population P of a particular city, Metropia, is growing at a rate proportional to the current population. The population at time t years is modelled by the equation P=¡¼Ae¡½^kt where A and k are constants. With the aid of appropriate examples,

28. ## math

35 is what percentage of 175?

29. ## Maths

The population P of a particular city, Metropia, is growing at a rate proportional to the current population. The population at time t years is modelled by the equation P=Ae^kt where A and k are constants. With the aid of appropriate examples, explain how

30. ## physics

Two Carts have a perfectly inelastic collision. Cart A has mass 47.2 kg and velocity 6.33 m/s directed north immediately before the collision. Cart B has mass 41.1 kg and velocity 4.4 m/s directed west immediately before the collision. What is the speed of

31. ## Caculus:Integration Inverse Trig

integral of (4/(x times the square root of( x^2-1)) + (1+x+x^3)/(1+x^2)dx

32. ## chemistry

If 35.7{\rm mL} of 0.205{\rm M} {\rm KOH} is required to completely neutralize 20.0{\rm mL} of a {\rm HC_2H_3O_2} solution, what is the molarity of the acetic acid solution? {\rm HC_2H_3O_2}(aq) + {\rm KOH}(aq) \to {\rm KC_2H_3O_2}(aq) + {\rm H}_{2}{\rm

33. ## programming

write a flowchart program which shows persentes of 4 student 1st 2nd 3rd 4th meximum nd minimum?

34. ## Pharmacy Technician

35ml of active ingredient is mixed with distilled water to total 300ml. What is the final concentration (v/v)? ________

35. ## qbasic

how to print 2,5,11,20,32 to 200 and print its sum

36. ## Pharmacy Technician

If you diluted 95ml of a 7% benzocaine lotion to 5%, how much could you produce? _________

37. ## college physics

A 565 N mountain climber moves across a rope strung across a canyon. When she is more than halfway across, she notices the rope makes a 10.0 degree angle (from horizontal) behind her and a 25.0 degree angle (from horizontal) ahead of her. What are the

38. ## Dynamics

The velocity of cylinder which is released from rest on degree incline after it has rolled through a distance 1 is given by____________

39. ## Dynamics

a 1500 kg automobile is traveling up to 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels

40. ## us history

for Leisler Rebellion, what happens in the end? I understand that Leisler and his son in law were arrested and then hanged for treason. But what happened after that? The goverment regain control? Also for Bacon's Rebellion, what also happens in the end

41. ## Dynamics

A ball is thrown vertically upward with a velocities of 18 m/s. Two seconds later another ball is thrown upwards with a velocity of 13.5 m/s. at what position above the ground will they meet?

42. ## Spanish

If i knew the answer i wouldnt be asking the question! Is it a bat, bull. If nobody knows the answer just say instead of keep saying ive not dun it properly

43. ## Spanish

Que animal de la gusta

44. ## Physics

An ac generator supplies an rms voltage of 5.00 {\rm V} to an RL circuit. At a frequency of 21.0{\rm kHz} the rms current in the circuit is 45.0 {\rm mA}; at a frequency of 26.0{\rm kHz} the rms current is 40.0 {\rm mA}. Find value of L an R ?

45. ## writing

Im speech and psychology this semester in college. I will like to know if there is any websites that can help me with writing a good paper. Thank you in advance!

46. ## Algebra 2

Find the value of x for which the equation below is true. |5x - 2y| |18| |x + 6y|=|10| A.16 B.-1 C.4 D.1

47. ## Calc

A paper cup is to be designed in the shape of a right circular cone. It must have a capacity of 12 fluid ounces (1 fluid ounce = 1.80469 cubic inches) of soft drink but it must use a minimum amount of material in its construction. What should the

48. ## SINGER

ARE AVREL LAVIGNE WAS DEATH?

49. ## Algebra II

1 ) Find the inverse of g(x) = 5x -2 2) the graph (x-2)^2 + 3(y-2)^2 = 25 is graph of a(an) ______ 3) which equation has a vertex (5,- 4) a) y= (x+4)^2 - 5 c) y = (x-5)^2 -4 b) y = (x-4)^2 +5 d) y=(x+5)^2 -4 4) solve 8^x less than or equal to 25 5) name

98. ## Earth Science

I need help with the following Lab due tonight, 7/30/12, as I feel completely lost and would appreciate the help. The lab goes as follows: Design an experiment that illustrates the determination of the density of a cylindrical object found in the Lab Kit.

99. ## Chem

If your metabolic consumption of oxygen is 1500ml/min, what is the P02 of venous blood?

100. ## A&P

If your metabolic consumption of oxygen is 1500ml/min, what is the P02 of venous blood?

101. ## COMM 215

The capitalized verb agrees with the subject: One of my friends LIKE this brand of coffee. It is True/False. I picked False.

102. ## algebra

add simply or fraction 5 3 4 ------ + -- + --- = 8 20 15

103. ## Penn

I need to write a paragraph why i choose medical billing. It has to have different experiences that motivate you to choose that field

104. ## American History

So were the Federalists considered the lesser party in contrast to the Jeffersonian-Republicans? What were the differences in their views?

105. ## math

Find the error. Sam is finding 9-6+2. Find his mistake and correct it. Steps: First solve the problem. Second, write a summary statement. Third, find Sam's mistake and explain in complete sentences.

106. ## calculus

y=x^3=cx and y=ax^2+bx-1 have a common tangent at (-1,-4). find a, b, andc

107. ## COMM 215

When we drive in city traffic, you need to watch the traffic around your carefully. The choices are Pronoun shift in Number, Pronoun shift in Person, Ambiguous Reference, No Error. I picked Pronoun Shift in Person. Is this right?

108. ## math

Please simplify (-3)2(-3)2 + 22 * (5)(-1)

109. ## algebra

1/4x+ 1/5y=1 Find two solutions for the equation

110. ## pharmacy math

15g of potassium chloride is diluted in 2L of sterile water for injection. What is the final perccent strength (w/v)? ____

111. ## Pharmacy Math

320ml of active ingredient is added to 680ml of an alcohol based solution. What is the final strength (v/v)? ___

112. ## Alg 2

Find the value of x for which the equation below is true. |5x - 2y| |18| |x + 6y| = |10| A.16 B.-1 C.4 D.1

113. ## Alebra 2

If the system below were written as a matrix equation, by which matrix could you multiply both sides to obtain a solution? 4x + 6y = 24 5x + 8y = 40

114. ## algebra

The perimeter of a square field is yards. How long is each side?

115. ## Pharmacy Math

35ml of active ingredient is mixed with distilled water to total 300ml. What is the final concentration (v/v)? ____

116. ## Algebra 2 (again)

Find the value of y for which the equation below is true. |2x| |y + 7| |x | = |7 - 3y| 3, -3, 1, or 4

117. ## Pharmacy Math

How much stock solution of hydrogen peroxide 8% will you need to make 320ml of hydrogen peroxide 2% solution? ____

118. ## Pharmacy Math

If you diluted 95ml of a 7% benzocaine lotion to 5% how much could you produce? ___

119. ## Pharmacy Math

320ml of active ingredient is added to 680ml of an alcohol based solution. What is the final strength (v/v)? ___

120. ## Pharmacy Math

15g of potassium chloride is diluted in 2L of sterile water for injection. What is the final perccent strength (w/v)? ____

121. ## Pharmacy Math

35ml of active ingredient is mixed with distilled water to total 300ml. What is the final concentration (v/v)? ____

122. ## Physiology

Why does a solution of Haemolysed red blood cells look clear instead of cloudy?

123. ## Pharmacy Math

How much stock solution of hydrogen peroxide 8% will you need to make 320ml of hydrogen peroxide 2% solution? ____

124. ## Dynamics

A 1500 kg automobile is traveling upto 20 deg inclined at a speed of 6 m/sec. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.

125. ## math

A ball is thrown vertically upward with a velocities of 18 m/s. Two seconds later another ball is thrown upwards with a velocity of 13.5 m/s. At what position above the ground will they meet?