1M of CaCl2 = x N of CaCl2
what is the value of x?
A solution is prepared by mixing 100 mL of 2M NaCl, 100 mL of 1M CaCl2 and 650 mL of water. What is the molar ratio of Ca:Cl:Na in the final solution? please show full solution, (Indicate your answers to two digits after the decimal)
12.4 For each of the following, explain what is wrong and why. (a) (1m) A 95% confidence interval for the mean response is the same width regardless of the value of x. (b) (1m) To test H0: b1 = 0, use a t test. (c) (1m) For a particular value of the explanatory variable x, the confidence interval for the mean response will be wider than the prediction interval for a future observation
determining the formula of a hydrate of calcium chloride (CaCl2·X H2O). Mass (g) Crucible and Lid 28.4735 Crucible and Lid + hydrate salt 33.1938 Crucible and Lid + anhydrous residue 32.0339 What is the mass of the hydrate? mass = ___ g What is the mass of the anhydrous residue? mass = ___ g What is the mass of water lost upon heating the sample? mass = ___ g How many mol of H2O were lost upon heating? (H2O: 18.016...
what is the percent ionization value for an acid with nominal concentration of .1M and having H30+ equal 0.00421M at equilibrium ?
-What is the molarity of 1.5 N CaCl2? -You take 1 mL of patient serum and add it to 3 mL of water. Next, you take 1 mL of the dilution you just made and add it to 4 mL of water. You perform a glucose test using this final sample and receive a result of 6 mg/dL. a. What is the dilution factor of the final sample? b. Is the patient’s glucose value in the reference range?
What is the magnitude of the electric field (in N/C) at the
distance of 1m away from the line of charge (indicate in the
figure).
Please give detailed explanation!
1 m What is the magnitude of the electric field in units Consider an infinite line of charge with the uniform charge density N of πεο in units of m of ) at the distance of 1 m away from the line of charge (See the above figure) k- 4TTEo
A 12-N force is applied at the point x=3m, y=1m. Find the torque about the origin if the force points in (a) the x direction, (b) the y direction, and (c) the z direction. Part A For example, for vector <1,1,1> enter i^+j^+k^. Part B For example, for vector <1,1,1> enter i^+j^+k^. Part C For example, for vector <1,1,1> enter i^+j^+k^.
The Ksp of AgCl is 7.43 x 10-11. AgCl is added to a solution of CaCl2, and the final concentration of Ag+ is 8 x 10-11 M. What was the original concentration of CaCl2 solution? (You should set up an ICE table!)
A system of point charges include 91= +1°C, at x1=1m, y1=1m, q2=-1 HC at x2= -1, y2 = -1, and q3= +2 at the origin 0,0. What is the electric potential at x=1m and y=-1m. What is the electric potential energy of the system? What is the electric field x and y components, magnitude and direction at x=-1m and y= 1m.
A solution of 20 mL of .1M HCl and 25mL of .1M NH4OH. What is the pH?