shanice

Most popular questions and responses by shanice
1. geometry

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next

2. College Chemistry

a 1.00-L solution saturated at 25°C with calcium oxalate (CaC2O4) contains 0.0061 g of CaC2O4. The solubility constant (Ksp) for this salt is [CaC2o4= 128.09 g/mol] a) 6x10^ -3 b) 4.6x10^ -8 c) 2.3x10^ -9 d) 1.5x10^-4 if you could please work it out for

3. Chemistry

A 1.00-kg sample of Sb2S3(s) and a 10.0-g sample of H2(g) are allowed to react in a 25.0-L container at 713 K. At equilibrium, 72.6 g H2S(g) is present. What is the value of Kp at 713 K for this reaction? Sb2S3(s) + 3 H2(g) 2Sb(s) + 3 H2S(g)

what is the pH of a solution that is 0.200 M in methylamine, CH3 NH2 CH3NH2+ H20 CH3NH3+ + OH- Kb= 4.2 x 10 ^-4

5. College Chemistry

Determine the values of Kc that correspond to the following values of Kp (a) SO2Cl2(g)--->SO2(g) + Cl2(g) Kp= 2.9 x 10^-2 at 303 K (b) 2 NO2 (g)--->2NO(g)+O2(g) Kp= 0.275 at 700 K (c)CO(g) + Cl2(g)---> COCl2(g) Kp= 22.5 at 395 degree Celsius

6. physics

A projectile is fired horizontally from a gun that is 45m above flat ground, emerging from the gun with speed 250m/s How long does the projectile remain in the air? At what horizontal distance from the firing point does it strike the ground?.What is the

7. COLLEGE CHEMISTRY

Calculate the pH of a 0.052 NH4Cl aqueous solution

8. math

A SIX-SIDED CUBED IS ROLLED. FIND THE PROBABILITY OF P(4). ALSO, THE SAME IS TO FIND ANOTHER ANSWER AS P(6)

9. math

a spinner has the number 1 through 9. the spinners is spun once. what is the probability of p(3,6,8). write as a percent

10. College Chemistry Help Asap!

Determine the values of Kp that correspond to the following values of Kc a)CO(g) + Cl2(g) COCl2(g) Kc= 1.2 x 10^3 at 668 K b)2 NO(g)+ Br2(g) 2 NOBr(g) Kc= 1.32 x 10^-2 at 1000 K c) 2 COF2(g) CO2(g)+ CF4(g) Kc= 2.00 at 1000 degrees Celsius

11. chemistry

A reaction starts with 1.00 mol each of PCl3 and Cl2 in a 1.00-L flask. When equilibrium is established at 250 degree Celsius in the reaction PCl3(g)+ Cl2(g)--> PCl5(g), the amount of PCl5 present is 0.82 mol. What is Kc for this reaction?

30cm=_____mm

13. chemisty

4. N2+3H2----2Nh3 k=1.2 at a T=375C you initially have 0.249mol of N2. 3.21*10^-2mol of H2, and 6.42*10^-4 mol of NH3 in a 3.5L container a.what is the equation to determine the reaction quotient, Q b.determine the reaction quotient Q c. compare Q and K.

14. English

What type of sentence is this? On July 4, 1976, the nation’s bicentennial, 10,741 American flags were flown over the U.S. Capitol, the largest number ever flown there in one day. It's a simple sentence with two appositives. Can you please help me with my

15. statistics

5. Find the weighted mean of the following two samples. Sample 1: n = 5 and the mean = 20 Sample 2: n = 15 and the mean = 10.

16. geometry

Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.

17. algebra

IN A BAG THERE ARE 2 RED, 3 YELLOW, 4 GREEN , AND 6 BLUE MARBLES. WHAT IS THE PROBABITILTY OF P(BLUE)

18. college statistics

2. A researcher has developed a new questionnaire for measuring dominance and would like to estimate the population parameters for the test scores. The questionnaire is administered to a sample of n = 25 subjects. This sample has an average score of mean =

19. chemistry

A+B ---- C deltaH=-100kj and temp.=25C which direction would the reaction shift if.. a. the concentration of A was decreased b. the concentration of C was increased c. The temp. was increased to 100C

20. College Chemistry

The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)

21. college chemistry

What is the pH of the solution obtained by diluting 500 mL of 0.0200 M NH3 (aq) to 1.000 L ?

23. chem quantity

a sample of soil containing hydrated barium chloride potassium chloride plus inert material weighd 0.8076g. tha sample was then dissolvd in water n treated with silver nitrate.tha resulting precipitate was collectd n found to weigh 0.5846g. calculate tha

24. algebra

I need to solve Y+15=18

25. College Chemistry

The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)

26. college statistics

7. Mary goes into the supermarket. The probability that she buys (a) regular coffee is .30, (b) decaffeinated coffee is .40, and (c) that she buys both is .30. What is the probability that she buys regular coffee, decaffeinated coffee, or both?

27. statistics

2. A researcher has developed a new questionnaire for measuring dominance and would like to estimate the population parameters for the test scores. The questionnaire is administered to a sample of n = 25 subjects. This sample has an average score of mean =

28. simple intrest

25000 at 7% compounded semi anually for 10 years.

29. College Chemistry..Urgent!

THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)

30. Nursing

If I have a 69 in the class and I got a 33 out of 50 on the test and she giving 20 points what would be my grade?

m/9=24/36

32. math

WHEN ROLLING A CUBE, WHAT IS THE PROBABILITY OF ROLLING A NUMBER GREATER THAN 6

33. math

A SPINNER HAS THE NUMBER 1 THRU 9. P(LESS THAN 6). WRTIE AS A DECIMAL

34. statistics

6. Out of eight numbers, what is the probability of drawing a two on the first draw and a three on the second draw using sampling with replacement?

35. ECE

To become a successful obeserver of young children, which of the following techniques is most effective?

36. COLLEGE CHEMISTRY

THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)

37. College Physiology

At the venular end of the capillary, the hydrostatic pressure is? A) higher than the osmotic pressrue B) lower than the osmotic pressure C) equal to the osmotic pressure D) higher than the hydrostatic pressure at the arteriolar end of the capillary

1. Maaaath!!!

In six years time Leroy will be twice the age he is now what is his age in six years

posted on November 24, 2016
2. Math

Katie doesnt have an error because negative numbers are integers which are rational numbers 😊

posted on September 12, 2016
3. chemistry

Soft water readily forms lather with soap, but it is more difficult to form lather with hard water. The dissolved calcium ions and magnesium ions in hard water react with the soap to form scum, so more soap is needed. This can be minimized by the addition

posted on November 28, 2015
4. algebra

6/15

posted on November 28, 2015
5. Algebra II

You set up a hot chocolate stand at a football game. The cost of your supplies is \$75.You charge \$0.50 for each cup of hot chocolate Write a function that represents the profit P for selling c cups of hot chocolate.

posted on March 17, 2015
6. Math

15

posted on February 11, 2014
7. geometry

If AC = 20 centimeters, and BC = 16 centimeters, which does AB equal?

posted on March 3, 2013
8. College Chemistry

The question was written properly & I DID it copy word for word. And how you explained it, doesn't help.

posted on December 3, 2010