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5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the temperature of the solution increases by 1.60 o C. Calculate ΔH for the reaction in kJ/mol of KOH .The specific heat capacity of the solution is 4.18 J/g o C
A: The molecule given is H2O Hence molar mass of H2O = Atomic mass of H X 2 + Atomic mass of O X 1… Q: a certain protein has a molar mas of 2.88 x 10^5 g. what is the mass of the molecule of this protein
Q: chemist has a 0.700 M solution of potassium hydroxide (molar mass = 56.1 g/mol). What mass of KOH is… A: Molarity is defined as number of moles of solute divide by volume of solution
Solution for A chemist has a 0.500 M solution of potassium hydroxide (molar mass = 56.1 g/mol). What mass of KOH is dissolved in 1.90 L of the solution?
When 5.0 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water, the temperature of the solution increases by 11.6°C. Calculate the AHsoln for potassium hydroxide. Assume the specific heat capacity of the solution is 4.2 J/g.°C. Select one: Oa. +26 kJ/mol O b. -75 kJ/mol C. +57 kJ/mol d. -26 kJ/mol e. -57 kJ/mol
A chemist has a 0.700 M solution of potassium hydroxide (molar mass = 56.1 g/mol). What mass of KOH is dissolved in 2.30 L of the solution?
Molar Mass of Potassium Hydroxide: Potassium hydroxide is an ionic compound that contains one potassium, one oxygen, and one hydrogen atom per formula unit. Hence, the molar mass of potassium hydroxide suggests the combined masses of one mol of potassium, one mol of oxygen, and one mole of a hydrogen atom. Answer and Explanation: 1
Molar mass KOH = 56.11 g/mole; H2O = 18.02 g/mole %3D Density of Mole fraction of Molarity Molality % by Mass ppm solution solute 1.43 14.2 Complete the following table for aqueous solutions of potassium hydroxide.
The molar mass of sodium hydroxide is 39.997 g/mol. Sodium hydroxide reacts with sulfuric acid to produce water and sodium sulfate. How many grams of sodium hydroxide are required for a complete reaction with 25.0 mL of 0.509 M sulfuric acid? The molar mass of sodium hydroxide is 39.997 g/mol. (Hint: Start
How many grams of potassium hydroxide, KOH (molar mass = 56.11 g/mol) would need to be dissolved in 1.000 Liter of a water solution to give a concentration of KOH = 0.85 Molar (moles/Liter)?