We can prepare the reagent by weighing out the amount equal to the number of moles required for a substance multiplied to its molar mass.Answer and Explanation: Determine the mass, m, of the given amount of water. We do this by simply multiplying the given number of moles, n = 0.85 mol...
This is a reaction where multiple reactants combine to form a singular product. Synthesis reactions can be considered the opposite of decomposition reactions and are used especially in organic chemistry Answer and Explanation: To solve this question we must first calcu...
(ii) Calculate the value of x in the formula of the hydrated potassium carbonate, K2COxH2O.Show your working.X =[2](c)One of the errors associated with this method is caused by the solubility of carbon dioxide in water.Suggest two modifications which could reduce this error.modification 1...
Calculate the molal concentration of the solution that will be created after you add your solute to the solvent. For instance, consider a solution created by dissolving 0.5 moles of salt into 1 liter (L) of water. One liter of water has a mass of 1 kilogram (kg), so: Molality = mole...
Answer to: The fish has a body mass of 0.2 kg. Calculate the volume of water it will need to pass over its gills each hour to supply the oxygen...
If relative humidity is 45% , calculate the moles of water present in one litre of air at 20∘C. View Solution At a temperature of 20∘C, vapour pressure of water is 17.5 Torm. If relative humidity is 45% Calculate the moves of water present in one litre of air at 20∘C. ...
H2O also known as Water Molar Mass of H2O:18.02 g/mol ElementSymbolAtomsMass % HydrogenH211.2% OxygenO188.8% Relate the moles of standard solution to the moles of unknown solution. Because this is a neutralization reaction, assume that the standard solution is the base (OH- ions). You cal...
To calculate the solubility of hydrogen gas (H₂) in water at 25°C when the partial pressure of H₂ above the solution is 1 bar, we will use Henry's Law. Henry's Law states that the solubility of a gas in a liquid is directly proportional to the
Assume the specific heat of the solution is that of water; 4.184 J/(g oC). (4) Calculate the enthalpy change of the reaction using equation (1) (Hrxn). (5) Assuming H2O2 is the limiting reagent, calculate the moles of H2O2. A 3.0...
Answer to: Calculate the pH of a solution prepared from 2.53 grams of oxoacetic acid, 5.13 grams of potassium oxoacetate, and 103 grams of water...