Post a New Question

Posts by Nisar

Total # Posts: 17

You have 30mL of .2M HF being titrated with .15M KOH. The pka is 3.17....half way to the equivalence point you have 20mL of KOH. Find the pH when you add 40mL of KOH . Find the pH when you have 100mL of KOH added. Sol:pH = pKa + log (base / acid) = -log 3.17 + log ( .009/ .006)

at 1:30 PM

Dennis has a problem. He went to school, which is 12 blocks @60 degrees celcius away from home. then he went to the intramural scrimmage at Dumbbell Hight football field, 14 blocks @ (7pie/4)from school. Then he had a study date with aula, and her house is -12 blocks x from ...

If 4.75 mL of cycohexene is reacted with 7.04 g of bromine, which is the limiting reagent? What is the theoretical yield of product? Alkenes like cyclohexene undergo addition reactions with bromine to produce dibromoalkanes. So, write and balance the equation. Then, calculate ...

What is another name for cardamist? Please write the formula and a link to its structure. See

can somebody answer my chem questions below plzz
I have posted some chem question below can somebody answer them plzzzzzz Multiple posts asking people to answer your questions will get you banned. Please be patient as someone will help you as soon as possible. If you were travling from Devner,Colardo to Bishmark, North ...

How many structural isomers of dicloro,hydroxy,butanoic acid are there? Is there a website that has the structure with names??? The point of this question is to get you to draw the compound, then move the cloro and hydroxyls and count the variations. So draw the butanoic acid...

Can somebody help me please??? Ozone, O3 has a O-O-O connectivity. 1. Draw a lewis structure for ozone 2. Calculate the formal charge for each oxygen of ozone 3. Describe the shape of ozone http://dbhs.wvusd....

Given Vector A with magintude 9.17 feet and Vector B with magnitude of 10.58 feet, what is the resultant of the two vectors added together? Answer: I know it would depend on the direction of the vector. If in the same line we would add them or if opposite lines we would ...

Which of these is the best example of a Vector's Magnitude? a. Newtons b. Meter per Second per Second c. Miles per hour d. Feet e. Meters/Second f. all of these Answer: I think since a vector's magnitude is best described as a length that answer should be (d. Feet)but ...

1. Vector B is in the third quadrant, therefore its x and y components are negative. If B's direction is 218 degrees (counter clockwise from the positive x-axis) then which expression best describes B's x-component? 1. B*sin(38) 2. B*cos(38) 3. B*tan(38) 4. B*cos(218) ...

1. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the East Direction? (Answer with three significant figures. 7. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the North direction? 1. 700 cos 15 = ...

Someone please help me with this. The speed of ocean waves depends on their wavelength λ (in meters) and the gravitational field strength g (in m/sˆ2) in this way: V=Kλˆp Gˆq Where K is a dimentionless constant. Find ...

I have a hard time solving this problem. The weight of an object at the surface of a planet is proportional to the planet's mass and inversely proportional to the square of the radius of the planet. Jupiter's radius is 11 times Earth's and its mass is 320 times ...

It is pretty easy but I am not quite sure. Round 0.03095583 to the 3 sig figs. Is it 3.12 x E-2 The format is OK but the rounded-off number is 3.10 x 10^-2 2681

Make a good argument for blood to be placed in an organ system OTHER than cardiovascular. Make a good argument for blood to remain in the cardiovascular system. I chose lungs because it is positioned in the same level as heart, but don't know what else to say. As far as ...

Out of all four major organic molecules (carbohydrates, lipids, proteins, and nucleic acids) which ones are present in blood? All are in the blood. Think on what is blood: water, dissolved gases, cells, foods (sugars, lipids, amino acids, etc)

  1. Pages:
  2. 1

Post a New Question