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A 700.0 mL solution with 0.20 moles of ammonia (Kb = 1.8x10-5) is made. Solve for the pH of each solution below after it is added to our initial ammonia solution. (a) 700.0 mL of pure water. (b) 700.0 mL of pure water and 0.20 moles of hydrochloric acid. (c) 700.0 mL of pure water and 0.30 moles of hydrochloric acid.
If you titrate 25 mL of 0.15 M formic acid (HCOOH, Ka = 1.8x10–4) with 0.060 M NaOH, what would be the pH after addition of 15 mL of NaOH solution?
A buffer made with 150.00 mL of 0.20 M formic acid (Ka=1.8x10-4) and 250.00 mL of 0.10 M formate has a final volume of 1.0 L. What is the pH after 6.00 mL of 1.0 M HCL is added to the buffer?
Can you show step by step how to rearrange this formula to solve for r? E=kq/r^2
What do you mean? 2) Solve for X. _3.66205_ 1.40 2.00 Step 1 use.75 R and 62° to find hypotenuse .84943. TYP Step 2 use the 1.4 and subtract .84943 to get .5507. Use this and the 2.0 to get the hypotenuse 2.07440 and both angles 74.08° and 15.399 Step 3 Solve for the oblique using the 2.07440, 3.8 (4.55 - .75) and 43.39° (74.08º and 62° subtracted from 180). Also get the 114.58° angle. 4.55 R .75 R Step...
20 0.05 30 0.20 40 0.30 50 0.20 60 0.15 70 0.10 a. Calculate ?, ?2, and ? " 45 (Type an integer or a decimal. Do not round.) ?2-1186 (Type an integer or a decimal. Do not round.) ? ?(Round to three decimal places as needed )
(20*10^-6)=(1.11*10^-10)/(1/r-1/2r) I need help in a step-by-step method that shows how to solve for r...
1268365 Please solve it step by step Q. 122 If p + q +r = xs , q +r +s-yp non coplanar vectors, then p + q +-+-|- and are p,q,r (A) I (C) 2 3 (D) 3
Show chemical equations involved and your step by step calculation to get full credit. Use the table provided to solve problems given below: Weak HCOOH H C2H:02 HNO2 HF NaHSO4 acid K. 1.8x10+ 1.8x105 4.5x104 7.2x104 1.2x102 HCIC H202 1.38x10- CH NH3 (CH3)2NH |CHÚNH |CH CH2NH3 |C HN Weak base Kb 1.8x10 4.27x100 5.4x104 4.4x10* 6.4x10+ 1.7x109 1. Write the dissociation of a common strong acid and a weak acid. 2. Write name of two polyprotic acids. 3. Show the...
Solve: 4 62x 1<16 -5/R,7/2) Preview 1) 1)