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A 0.0500-mol sample of a nutrient substance is burned in a bomb calorimeter containing 2.00 × 102 g H2O. If the molar mass of this nutrient substance is 114 g/mol, what is the fuel value (in nutritional Cal) if the temperature of the water increased 4.07°C? Enter your answer in the provided box.
Provide the structure of the alkyl bromide that is needed to prepare 6-methyl-2-heptanone using the acetoacetic ester synthesis.
You titrate 25.0 mL of 0.110 M NH3 (Kb = 1.76 x 10-5) with 0.100 M HCl. What volume of HCl is required to reach the equivalence point and what is the pH at the equivalence point
Explain how would you make 100ml of a carbonic acid buffer at 0.2M as well as ph =9.8 using 0.5M HCO3 and either 0.1M NaOH or 0.1M HCl and water
Given a 0.010 M solution of a diprotic acid H2A with Ka1 = 2.9 x 10-5 and Ka2 = 5.3 x 10-6. The species present in the lowest concentration is
A mass of 137 g of manganese dibromide is dissolved in 330 g of water. What is the molality of the solution
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product
You have 47.0 L of 93.00 M stock solution that must be diluted to 0.500 M. How much water should you add
If the initial volume of the container, before any reaction takes place, is 5.70 L, determine the volume of the container after the N2 (g) and H2 (g) have reacted to completion.
The dinitrogen oxide molecule has the atomic order NNO rather than the symmetrical NON arrangement. Suggest a possible reason.
A 52 year old woman presented to the clinic for ongoing fatigue and weight loss during the last 6 weeks.
Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following a) the number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgCl2 and H2
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s). If 12.5 g of iron(III) oxide (rust) are produced from 8.74 g of iron, how much oxygen gas is needed for this reaction?
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