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how do you prepare 50mL of 0.15M malonic acid, 0.020M manganese sulfate and 0.5% (w:v) starch from malonic acid CH2(COOH)2 reagent grade, starch (soluble), and manganese (II) sulfate monohydrate, MnSO4.H2O (s)?
Match the following physical and chemical properties with the compounds cyclohexane,C6H12 , or calcium nitrate, Ca(NO3)2. CHOICES: A: C6H12 or B: Ca(NO3)2
What is the theoretical yield of aluminum oxide if 2.80 mol of aluminum metal is exposed to 2.40 mol of oxygen? Express your answer numerically in moles.
Calculate the pH when 2.00 mL of 0.0275 M NaOH are added to 50.0 mL of buffer solution.
The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation? (Molar mass of water is 18.02 g/mol.)
Calculate the specific rotation of the compound. A sample of 150 mg of an organic compound is dissolved in 7.5 ml of water. The solution is paced in a 20-cm polarimeter tube and the rotation measured in a polarimeter
At 710.mm hg a sample of nitrogen gas occiuped 625 ml.what volume does gas occupy if the temperature remains constant and the pressure increases to760.mm hg?
When the gases dihydrogen sulfide and oxygen react, they form the gase sulfur dioxide and water vapor
What hybridization would you expect for the indicated (bold) atom in each of the following molecules?
The density of liquid oxygen at its boiling point is 1.14 {kg/L} , and its heat of vaporization is 213 {kJ/kg} . How much energy in joules would be absorbed by 2.0 L of liquid oxygen as it vaporized? Express your answer numerically in joules.
Write the reaction of benzoic acid with propylamine. If there is no reaction
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment
Imagine you are working on ways to improve the process by which iron ore containing Fe2O3 is converted into iron: Fe2O3(s) + 3 CO(g) 2 Fe(s) + 3 CO2(g)
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