Im stuck on this one and could use some help understanding this problem.. thank you for your help
A good guess for the pH of 0.0010 M HC2H3O2 (acetic acid, a weak acid) is pH =
(A) 2
(B) 3
(C) 5
(D) < 0.001
Explain your choice:
Im stuck on this one and could use some help understanding this problem.. thank you for...
PYTHON Im kinda stuck here for this question, could use
some help! Python please, and please follow the
requirements.
09 5 Points Al and Bob are arguing about their algorithurs. Al claims his Oinlogn time method is always faster than Bob's O(n^2)-time method. To settle the issue they perform a set of experiments. To Al's dismay, they find that if n < 100 the On/2)-time algorithm runs faster and only when na 100. O(nlog n)-time one runs faster. Explain how...
Im
stuck on this last problem on my homework, please help! thank you
in advance
Problem 3. (40 points) The switch in the circuit has been closed a long time before opening at t = 0. Fort 2 0 , find a. vo(t). (0) 8k2 b.i.(t). C. i(t) d. iz(t) e. i1(0) 5ma (1) iz(0), 315 ki(0), 360 KN 500 nF +
Can someone help me with these problems im stuck on? Thank
you!
1)
2)
Problem 12.88 Part A 0 g of aluminum at 200 °C and 20 g of copper are dropped into 43 cm3 of ethyl alcohol at 15 °C. The temperature quickly comes to 24 °C What was the initial temperature of the copper? Express your answer using two significant figures.
I need help for this. Im confused on how to solve the problems. thank you You have 15.00 mL of a 0.350 M aqueous solution of the weak base CH3NH2 (Kb = 5.00 x 10-4). This solution will be titrated with 0.350 M HCl. (a) How many mL of acid must be added to reach the equivalence point? solution before any acid is added? (b) What is the pH of the before any acid is added? (c) What is the...
If the full equations/math could be provided it would help greatly. Thank you. All the following salts are alkaline except LiClO NH4NO3 SrCrO4 K2HPO4 The pH after adding 21.0 mL of 1.0 M NaOH to 25.0 mL of 1.0 M HCl is 0.087 0.16 0.80 1.1 What is the pH when 20.0 mL of 1.00 M NaOH has been added to 25.0 mL of 1.00 M CH3COOH (Ka=1.8x10-5)? 4.14 0.70 5.35 0.95 You can make a buffer with all the...
How do you calculate the pH of a solution containing a weak acid or a weak base? Please write down the general formula for finding the H3O+ ion concentrations in case of a weak acid Please explain the common-ion effect in terms of Le Châtelier. You might want to use the general chemical equation for an acid ionization HA + H2O ↔ A- + H3O+ to help you explain the phenomenon. How do you calculate the degree of ionization? Please...
This problem deals with Acid-base titrations and pH scale for a weak acid and a weak base. Calculate the pH of the solution that results from adding 7.5 [ml] of Ammonia (NH3) to a beaker that contains, 100 ml of distilled water and 15 ml of 0.1 M Acetic acid (HC2H3O2). A buret containing 50 mL of 0.1 M Ammonia (NH3) is being used as the titrant. The beaker containing 100 ml of distilled water, and 15 ml of 0.1...
I could use some help with this question, and a little explanation as well. Thank you! a. Draw an approximate reaction-energy diagram for the acid–base reaction of phenol with 1-molar aqueous sodium hydroxide solution. b. On the same diagram, draw an approximate reaction-energy diagram for the acid–base reaction of tert-butyl alcohol with 1-molar aqueous sodium hydroxide solution.
can I get some help?
A solution is prepared at 25 degree C that is initially 0.39 M in acetic acid (HCH_3 CO_2) a weak acid with K_a = 1.8 times 10^-5, and 0.18 M in sodium acetate (NaCH_3CO_2). Calculate the pH of the solution.
I could really use help for question 1 and 2! Thank you in
advance :)
MATERIALS AND EQUIPMENT . 1 - pH probe w/LabQuest . 1 - 100 ml beaker . 1 - stir bar • 1 - stir rod • 3 - medium beaker • 2 - 30 mL beaker CHEMICALS • sodium carbonate, NaHCO3 • 0,1 M hydrochloric acid, HCI • 0.85% lactic acid • dry ice • ammonium chloride, NHACI assigned acid assigned conjugate base • 6...