what if ph is 2.20?
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5. You need to make 500.0 mL of a buffer with a pH of 2.20. You have the following substances to work with: 0.100 M NH3 Solid NaN3 Solid NaClO2 0.100 M HClO2 Solid NH4Cl Solid Na2SO3 0.100 M HN3 Solid NaHSO3 Ka for HClO2 = 1.1x10-2 Kb for NH3 = 1.8x10-5 Ka for HN3 = 1.9x10-5 Ka1 for H2SO3 = 1.7x10-2 Ka2 for H2SO3 = 6.4x10-8 (Assume that the addition of solid does not change the volume of the...
A buffer solution is prepared by mixing 15.0 mL of 2.20 M Acetic Acid and 30.0 mL of 1.55 M NaC2H3O2. Determine the pH of the buffer. pKa HC2H3O2 = 4.745 pH:_____
What is the pH of a 2.50 molar solution of NaCN(aq)? KA (HCN) = 6.2×10^-10 a. 11.80 b. 9.60 c. 9.21 d. 4.40 e. 2.20 A. is the correct answer
28. Lactic Acid (HC3H5O3) has a pKa of 3.1. What is the pH of an aqueous solution 1 initial concentration of 0.050 M of HC3H03? (A) | යි.}=-baka 2.20 3.10 0.90 1.30 0.81 ol=- 09 -2017)"font- | e" – – k,
What is the inductance of a coil if the coil produces an emf of 2.20 V when the current in it changes from -27.0 mA to +32.0 mA in 13.0 ms ?
What is the temperature of 0.250 mol of neon in a 2.20 L container at 4.68 atm?
Two 2.20 cm × 2.20 cm plates that form a parallel-plate capacitor are charged to ± 0.713 nC. Part A:What is the potential difference across the capacitor if the spacing between the plates is 1.10 mm? Express your answer with the appropriate units. Part B:What is the potential difference across the capacitor if the spacing between the plates is 2.20 mm? Express your answer with the appropriate units.
A gas held at 2.20 liters is 755 mmHg @ 59.8 degrees Celsius. What is the pressure if the temperature is raised to 298 degrees Celsius?
The initial concentration of acid HA in solution is 1.7 M. If the pH of the solution at equilibrium is 2.20, what is the percent ionization of the acid? Round the answer to two significant figures.
(a) what is the mass of a large ship that has a momentum of 2.20 10% kg-m/s, when the ship is moving at a speed of 46.0 km/h? kg (b) Compare the ship's momentum to the momentum of a 1300 kg artillery shell fired at a speed of 1000 m/s Pship Pshell