please answer all questions with clear work A flashlight bulb draws 2.5 amps when connected to...
Part A and B Please show all of the steps Analysis of Electroplating When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is...
Part A 0.30 g of hydrogen chloride (HCl) is dissolved in water to make 2.5 L of solution. What is the pH of the resulting hydrochloric acid solution? Express the pH numerically to two decimal places. View Available Hint(s) A O ? O A pH = 2.56 Submit Previous Answers X Incorrect; Try Again; 3 attempts remaining Part B 0.35 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 6.5 L of solution. What is the pH...
ch20 answer all of them please Part A Ra 210 (alpha) Express your answer as a nuclear equation. View Available Hint(s) ΑΣΦ ? Submit Part B Ac - 227 (beta) Express your answer as a nuclear equation. View Available Hint(s) AEO ? Submit Part C TI - 207 (beta) Express your answer as a nuclear equation. ► View Available Hint(s) ΑΣΦ 2. Part D Mn - 49 (positron emission) Express your answer as a nuclear equation. ► View Available Hint(s)...
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is 96,485 coulombs (C) and 1 ampere (A) = 1 coulomb/second (C/s) Part A...
Please it is the last attempt I need clear steps Review Consider a current flowing in wire made of aluminum (with density 2.702 and atomic weight 26.98 u). Assume that each atom contributes 3.5 conduction electrons. Part A What is the drift speed in a 2.6 mil -diameter aluminum wire carrying 25 A ? If you need help determining the number density of conduction electrons, use the hints! Express your answer using two significant figures. View Available Hint(s) A¢ *...
What is the pH of a 0.225 Mammonia solution? Express your answer numerically to two decimal places. View Available Hint(s) IVO ALVA O ? pH = Submit Request Answer Part B What is the percent ionization of ammonia at this concentration? Express your answer with the appropriate units. View Available Hint(s) TH HÀ • • • Ea ? % ionization = Value Units
please answer the two questions and thank you An ammonia/ammonium buffer solution contains 0.36 MNH, and 0.77 MNH, The Ky value of ammonia is 1.8 x 10 Calculate the pH of this buffer Express the pH numerically. View Available Hint(s) ΟΙ ΑΣΦ * O ? pH = Submit Alactic acid lactate lon butter solution contains 0 49 MHC H,O, and 0.82 MC,H,O, respectively The K, value of lactic acid is 1.4 x 10 Calculate the pH of this buffer Express...
The CuCu ions undergo reduction by accepting two electrons from the copper electrode (cathode) and depositing on the electrode as Cu(s)Cu(s). The reduction half-cell reaction that takes place at the cathode is Cu^2+(aq)+2e^−→Cu(s)Cu^2+(aq)+2e^-→Cu(s) The electrons lost by the ZnZn metal are gained by the CuCu ion. The transfer of electrons between ZnZn metal and CuCu ions is made possible by connecting the wire between the ZnZn electrode and the CuCu electrode. Thus, in the voltaic cell, the electrons flow through...
ch16 answer all of them please Part A Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral. Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help Nacio CH3NH3CI NaNO3 C2H5NH3CN AI(NO3)3 Acidic Basic pH-neutral Submit Part A Determine the (OH) of a solution that is 0.180 M in F. (K, for HF is 6.8 x 10-4) Express your answer in molarity to two significant figures. VO AO ?...
Please answer all parts Consider the circuit shown in (Figure 1). Suppose that Ve = 50070°V (rms). Express your answer to three significant figures and include the appropriate units. View Available Hint(s) IT HA ? 21 = Value Units Submit Part D Find the average power dissipated in the line when the capacitive reactance is connected across the load. Express your answer to three significant figures and include the appropriate units. THA th ? P- Value Units Submit Request Answer...