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If a sample containing 2.03 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
What's a good hypothesis for the reactivity of halide ions lab in chemistry?
You have a 10.40-g mixture of table sugar (C 12 H 22 O 11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point is found to be-2.24°C. Calculate the perce
10mL of 0.1M HNO2 (nitrous acid, ka=4.0x10^-4)is titrated with a .01M KOH solution. After 10mL of the KOH solution is added, what will be the pH in the titration flask?
What is the concentration of dissolved O2 in blood (or water) at this partial pressure and a normal body temperature of 37C? The solubility of O2 in water at 37C and 1atm partial pressure is 1.93x1
Make this molecule from any starting materials that are readily available from the sigma aldrich catalog. Show the structure of Kinoprene.
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 490?
What are the oxidation states of manganese? I need the procedures, and safety precautions taken when doing this lab.
What is the purpose of using acetic anhydride in an experiment reacting with salicylic acid to produce acetylsalicylic acid. The answer should include a description of the function of this reagent i
The density of diamond is 3.51 g/cm . The international (but non-SI) unit for weighing diamonds is the "carat" (1 carat = 200 mg exactly.) What is volume of a 0.66 carat
How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pKa of acetic acid is 4.74.
How much salicylic acid is required to produce 1.1 x 102 kg of aspirin assuming that all of the salicylic acid is converted to aspirin.
A reaction has an activation energy of 195 kJ/mol. When the temperature is increased from 200 C to 220 C, the rate constant will increase by a factor of?
Octane has a density of 0.692g/mL at 20 C. How many grams of O2 are required to burn 1.00 gal of C8H18?
A 100- lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 2.0×10-2 hour, and the assembly expands from an initial volume of 0.90 to a final volum
Calculate an approximate heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 2490 kJ of heat for meth
Thomas poured 25 mL of .60 M HCl into a large bottle. He then added enough water so that the new (diluted) concentration was 0.10 M HCl. How much water did Thomas add?
The vessel contains 2.00 moles of nitrogen, 2.00 moles of helium, and 5.00 moles of krypton. What is the partial pressure of krypton?
A 235mL solution is prepared with 41.8 millimoles of an unknown sodium salt of a deprotonated organic acid (NaX). If the solution has a pH of 8.05, what is the pKa of the acid?
More realistically, the principal components of meat are fat, protein, and water. Water is acetone soluble. Based on this information, the calculations correctly calculate what quantity, % fat or %
The total strand concentration C that is duplex is defined as f. If the strand concentration is 1.00 X 10^-4 M, calculate the equilibrium constant at the melting temperature.
what is the molarity of HCl in a solution prepaired by dissolving 18.25 gm HCl in 200 gm ethanol, if the density of solution is 0.86 gm per mm.
A compound has the empirical formula CH2O. When 0.0866g is dissolved in 1.000g of ether, the solution's boiling point is 36.5 degrees C. Determine the molecular formula of this substance.
What is the concentration (M) of CH3OH in a solution prepared by dissolving 16.8 g of CH3OH in sufficient water to give exactly 230 mL of solution?
What is the broglie wavelength of an electron moving at one-tenth the speed of light. mass of the electron = 9.109* 10^-28