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An experimental light bulb with a volume of 3345 cubic cm is filled w/a mixture o f 2.9835 g of Argon and 1.441 g of neon in a laboratory at 20 degrees centigrade. Explain what is the internal pressure of the bulb? in kPA
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of water are required to react with 212.9 g of calcium cyanamide
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. What is the most likely empirical formula for this compound
Outline two different methods that could be used to prepare 2-methyl-2-butanol using a Grignard synthesis. Which method is the best? Explain
For 550.0 mL of pure water, calculate the initial pH and the final pH after adding 0.010 mol of pH
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C7H12Cl2: ? 1.07 (integral = 6203, s); ? 2.28 (integral = 1402, d, J = 6 Hz)
A 0.300 M solution of an acid, HZ, has a pH = 1.301. What is the value of the ionization constant, Ka, for this acid?
Sodium-24 has a half-life of 15.0 hours and is used to study blood circulation. If a patient is injected with 20.0 grams of Na-24 (usually done in the form of 24NaCl), how much is still present in the patient after 4.0 days?
Pure substances include: choose one below: elements only elements and compounds compounds and mixtures elements and mixtures all matter
a protein subunit from an enzyme is part of a research study and needs to be characterized. a total of 0.185 g of this
Explain the rate of a reaction is 15.0M/min at room temperature. Define if the reaction is conducted in a refrigerated environment, state what is likely to happen to the reaction rate
How many grams of ice at -6.6 C can be completely converted to liquid at 10.5 C if the available heat for this process is 5.33×10^3 kJ. For ice, use a specific heat of 2.01 J/(g.C) and ΔH fusion= 6.01 kJ/mol.
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