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A certain mass of nickel reacts with sulphur to produce 2.83 g of NiS. The same mass of nickel reacts completely with 0.50 g of oxygen to produce 2.33 g of NiO. How many grams of sulfur reacted in the first reaction?
Students typically have difficulty fully comprehending the concept of standard free energy in reactions and the laws of thermodynamics
When 2.5000g of NaOH were dissolved in 49.0g water in a calorimeter at 24.0C, the temperature of the solution went up to 37.1C.
Balance these equations for redox reactions by using the oxidation number method. HCIO3 (aq) -> CIO (g) + HCIO4 (aq) + H2O (I)
The osmotic pressure of a liquid at 320 K is 145 kPa. Compute the freezing point of the solution. Explain how to solve without knowing what the substance is or being given values for the freezing point constant (kf), density or molar mass.
Combustion reactions are exothermic. The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram
Consider a voltaic cell at 25o C consisting of a Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell ([Pb2+] and [Mn2+] are 1.0 M). If you want to convert this voltaic cell into an electrolytic cell, how many volts must you supply
Problem- The fact that carboxylic acids have higher boiling points than alcohols is attributable largely to which of the following? A) Low molecular weight carboxylic acid molecules are soluble in water.
A sample of methane (CH4) has a volume of 25 mL at a pressure of 0.80 atm. What is the volume of the gas at each of the following pressures if there is no change in temperature? a) 0.40 atm; b) 2.00 atm; c) 2500 mmHg; d) 80.0 torr.
Conduct a 30-minute long face-to-face interview with a person in a professional corporate communication position who has experience in any of the areas included in the syllabus and the textbooks. Please do not include your friends or relatives. ..
Explain which of the highlighted elements in the figure below fro noxious oxide that is removed from the automobile exhaust as it passes through a catalytic converter
In the second paragraph, analyze the effects the national debt has on our economy. Your reasons must be logical and detailed and must support.
Problem- Write a balanced chemical reaction, which if you measured its enthalpy would give you the sum of all the C-H, C-C, C-O, & C-H (all the bonds) of C6H12O6 (GLUCOSE).
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