given the following equation calculate the mass of potassium hydroxide (in grams) required to completly react with 0.117 mol of phosphoric acid. H3PO4 + 3 KOH --> K3PO4 + 3 H2O

Calculate the moles of H+ delivered to eachsample based on your experimental dataand record these values in Data Table 1. 0.1M HCl = 0.1 moles HCl / 1 Liter solution Calculate the moles of OH- in each sampleand record these values in Data Table 1. H+ + OH- H2O Calculate the moles of Ca2+ in each sampleand record these values in Data Table 1.  Ca(OH)2 Ca2+ + 2OH . Calculate the molar solubility of Ca(OH)2for each sample and record these values inData Table 1. Molar solubility = moles / Liter . Calculate the Ksp for each trial and theaverage Ksp and record these values inData Table 1. Ksp = [Ca2+][OH-]2       Sample 1 Sample 2 Sample 3 Mass of Erlenmeyer Flask 25.47 25.47 25.47 Mass of Erlenmeyer Flask + Calcium Hydroxide Solution (lime water) 28.32 28.30 28.43 Mass of Calcium Hydroxide Solution 2.85 2.83 2.96 Volume of Ca(OH)2 Density = 1.000 g/mL       Concentration of HCl (M)       Initial HCl Volume in Syringe 1.0ml…

1) calculate the molarity of 3.0% solution of H2O2 2) Why can we assume the density of the hydrogen peroxide solution is 1.00g/ml?

Which of the following equations represents the acid-base neutralization reaction between HSO4 and KOH? Note that coefficients for balancing the final equation are not included. OH504 + KCOH K2S02 + H20 O H2504 KOH KSO, + HOH O H2504 KOH KSO, + H20 O Hzs04 KOH K SO, + H20H O H2504 + KOH– K,SO, + H,o

A.) What is the pOH of an aqueous solution of 0.364 M nitric acid? B.) If 20.1 grams of an aqueous solution of aluminum nitrate, Al(NO3)3, contains 2.34 grams of aluminum nitrate, what is the percentage by mass of aluminum nitrate in the solution? C.) A sample of methane gas at a pressure of 0.638 atm and a temperature of 21.8 °C, occupies a volume of 11.1 liters. If the gas is compressed at constant temperature to a volume of 2.91 liters, the pressure of the gas sample will be__________  atm. ( fill in the blank)

What is the [H3O*] in a 175 mL sample of 0.0629 M KOH(aq)?   6.08 x 10-13 mol L-1   8.17 x 10-14 mol L-1   2.78 x 10-14 mol L-1   1.59 10-13 mol L-1   9.08 x 10-13 mol L-1

Complete the balanced molecular reaction for the following weak base with a strong acid: NaClO2(aq) +H2SO4(aq) ->

How do I write the chemical equation for the reaction of NaOH and HC2H3O2?

A 12.5 mL volume of 0.500 M H2SO4 neutralizes 50.0 mL of NaOH. What is the concentration of the NaOH solution? (This is a titration).

Please write a balanced equation and indicate the state. HCl(aq) + H2O (l)