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Noticias de la compañía :
- What is 34% of 120? - Socratic
We can set up an equation First, we need to convert #34%# to a decimal Move the decimal point left twice and we end up with #0 34#
- Question #e36df - Socratic
"0 694 M" When you're diluting a solution, you are decreasing its concentration by increasing its volume while keeping the number of moles of solute constant This implies that the increase in the volume of the solution must be equal to the decrease in the concentration In other words, volume increases and concentration decreases by the same factor, the dilution factor In your case, the
- What is the polar form of (-5,3)? | Socratic
(sqrt34 , 2 6) >Using the formulae that links Cartesian to Polar coordinates • r^2 = x^2 + y^2 • theta = tan^-1(y x) here x = - 5 and y = 3 " hence " r^2 = (-5)^2 +3^2 = 25 + 9 = 34 rArr r = sqrt34 Now the point (-5,3) is in the 2nd quadrant so care must be taken to ensure theta " is in the 2nd quadrant " theta = tan^-1(-3 5) = -0 54" radians " rArr theta = (pi - 0 54 ) ≈ 2 6" radians "
- If a projectile is shot at an angle of pi 2 and at a velocity of 34 m s . . .
The upward motion of the projectile will be due to its vertical component of velocity,now initially during the projection,its vertical component of velocity was 34 sin (pi 2) =34ms^-1 So,if it reaches its maximum height at time t at that instant its upward component of velocity will be zero, so,we can use, v=u-g t so, here we can write, 0=34 -g t so, t=3 47 s Well look carefully here the
- Question #6d0d9 - Socratic
A: 50 ml B:pH=2 87 C:pH=4 74 D:pH=8 72 A: 50 ml HAc 0 1M = 5mMol HAc (weak acid) 50 NaOH 0 1 M = 5 mMol NaOH (strong base) Equivalence: 1:1, 5mMol:5 mMol => 50ml 0, 1 M NaOH B: pH = -log sqrt(Ka * F) => pH = -log sqrt(1 8^-5 **0 1M) => pH = -log sqrt(1 8^6) => pH= -log 1 34 10^-3 => pH = 2 87 C: pH = pKa + log((eta OH^-) (eta HA_"init" - eta OH^-)) pH = pKa + log(2 5 ^-3 (5 0^-3 - 2 5 ^-3
- How do you solve y^ { 4} - 10y ^ { 2} = 9? - Socratic
-3 291, 3 291 graph{x^4-10x^2 [-10, 10, -10, 10]} this is the graph of f(x)=x^4-10x^2 the solutions to the equation in question, y^4-10y^2=9, are the x-coordinates of the points on the graph where y=9 this can be shown by drawing the line y=9 and finding the points of intersection: as seen in the image, the points of intersection are (-3 291,9) and (3 291,9) the x-coordinates are -3 291 and
- Question #115aa - Socratic
8 34*10^7 is scientific form, so we convert it to standard form by simplifying it Standard notation is the "normal" way we write numbers, such as 23 or 450 Scientific notation is always expressed as a positive number less than 10 multiplied by 10 to the power of something To convert back to standard notation, the scientific notation must be simplified as though it were a simple math problem
- If I have 340 mL of a 0. 5 M - Socratic
What would be the concentration of a solution made by diluting 45 0 mL of 4 2 M KOH to 250 mL? What is the molarity of a solution that is made by diluting 50 00 mL of a 4 74 M solution of HCl What volume of water would you add to 15 00 mL of a 6 77 M solution of nitric acid in order to
- A triangle has sides A, B, and C. Sides A and B are of lengths
The length of side C is 7 34 unit Angle between Sides A and B is _c= pi 6=180 6=30^0 Sides A=9 , B=2 Cosine rule: (for all triangles) is C^2=A^2 + B^2 − 2 A B cos(c) : C^2=9^2 + 2^2 − 2*9*2*cos(30) or C^2~~53 82 : C ~~ 7 34 (2 dp) The length of side C is 7 34 unit [Ans]
- Answers created by Stefan V. - Socratic
What is the pH of a solution made of 0 1 M acetic acid and 0 1 M potassium acetate to which 0 001 mol of KOH has been added? What would be the final volume of a 10 4% (m v) solution made from 5 00 g of solute?
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