Cơ chế làm mềm nước cứng của NaHCO3?

Download scientific diagram | Flow diagram for the purification of P pools (NaHCO3-Pi, NaOH-Pi, HCl-Pi, and HNO3-Pi) sequentially extracted from soils and ... HNO3. Effervescene of a colourless, odourless gas ... Compound + NaHCO3(aq). ---------------------- ----------------------. Alkanoic acid present. (ii). Recommended Products · Sodium bicarbonate/Sodium carbonate concentrate Na2CO3 64mM and NaHCO3 20mM in water, IC eluent. Jan 15, 2022 ... Molarity of 38% nitric acid = (38/70) × 15.7 = 8.52 M Equation for the neutralization: NaHCO3 + HNO3 → NaNO3 + CO2 + H2O It is obvious that ... ml of 6 M HNO3. 1. The student is provided with a stock solution of 16 M HNO3, two 100 ml graduated cylinders that can be read to. The correct option is B. Sodium nitrate is formed. Sodium bicarbonate reacts with nitric acid to give sodium nitrate, carbon dioxide and water. NaHCO3+HNO3→NaNO ... (4) HBr; (5) HNO3; (6) H2SO4. MW: Table 1. CAS: Table 1. RTECS: Table 1 ... NaHCO3, reagent grade. 2. Na2CO3, reagent grade. 3. Distilled, deionized ... 7 mol/L Na2CO3, 8 mmol/L NaHCO3, 0.7 mL/min; column temperature: 25 °C, injection volume: 250 µL. Cations, column: Metrosep C 4 - 100/4.0; eluent: 3.2 mmol HNO3 ... Benzene to nitrobenzene to aminobenzene to diazobenzene to phenol....C6H6 -- HNO3/H2SO4 -> C6H5NO2 -- Sn / HCl then NaHCO3 --> C6H5NH2 -- NaNO2 / HCl ... distilled water, a bottle of 5 percent NaHCO3(aq), and a bottle of saturated NaCl(aq). ... Then the student pours 25 mL of the 6 M HNO3 into a beaker and adds a ...