To calculate the pH of the resultant solution of 25 mL of 0.1 M HCl, 50 mL of 0.02 M HNO3, and 25 mL of 0.1 M NaOH, follow these steps:Step 1: Calculate the millimoles of HCl - Volume of HCl = 25 mL - Concentration of HCl = 0.1
Step 1: Determine the dissociation ofCa(OH)2 Calcium hydroxide,Ca(OH)2, is a strong base and dissociates completely in water: Ca(OH)2→Ca2++2OH− From the dissociation, we can see that for every mole ofCa(OH)2, we get 2 moles ofOH−. ...
Before setting up the ICE table, we should calculate the moles of each species present. moles HC3H5O3 = 0.52 mol/L x 1.08 L = 0.5616 moles moles KC3H5O3 = 1.11 mol/L x 1.08 L = 1.199 moles Now, for the ICE table using NaOH addition:HC3...
0.200 moles of H 2 S 6.82 g 2) 0.100 moles of KI 16.6 g 3) 1.500 moles of KClO 135.8 g 4) 0.750 moles of NaOH 30.0 g 5) 3.40 x 10¯ 5 moles of Na 2 CO 3 3.6 x 10 -3 g Calculate the moles present in: 1) 2.00 grams of H 2 O .111 mol 2) 75.57 grams of KBr ....
Calculate the molar concentration of {eq}I^- {/eq} in a saturated solution of {eq}PbI_2 {/eq} containing {eq}\left [ Pb^{2+} \right ] = 3.75 \times 10^{-4} {/eq} M. (The {eq}K_{sp} {/eq} for {eq}P...
Calculate the pH of a 1.0 L acetate buffer that is 2.0 M in acetic acid and 2.0 M in sodium acetate after the addition of 0.20 moles of NaOH. {eq}(K_a = 1.8 \times 10^{-5}) {/eq} Buffer Solution: A ...
You were told above that in chemical reactions, atoms combine in terms of moles, which you now can get from their masses. For example, in a calcium chloride (CaCl2) solution, the dissociation reaction can be expressed: CaCl2(aq) ⇌ Ca2+(aq) + 2Cl–(aq) ...
Say you need to make a solution of 1M NaCl for a reaction you are running. How would you know how much salt to weigh out and then add to a given volume of water? To do this, you need to find a way to relate the mass of a compound (salt) to the number of moles of that comp...
Say you need to make a solution of 1M NaCl for a reaction you are running. How would you know how much salt to weigh out and then add to a given volume of water? To do this, you need to find a way to relate the mass of a compound (salt) to the number of moles of that comp...
Calculate the amount of the component in moles using the formula, Amount (in moles) =mass (compound)/molecular mass (compound). In our example, Amount (NaOH)=0.5 g /40 g/mole= 0.0125 moles. Step 3 Convert moles to millimolesusing the following proportion: 1 mole corresponds to 1 milli...