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A solution is made by mixing 12.0g of NaOH and 70.0mL of 0.200m HNO3. Calculate the concentration of OH- ion remaining in the solution.
A 130 mL stock solution contains 1.5 M CuF2. When 13 mL of the stock solution is diluted to 25 mL, what will the concentration of F- ions be?
Write the electron configuration of selenium. List the following compounds in order of increasing lattice energy: NaCl, NaBr, MgO, CaO.
Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
A 0.50 sample of vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 are given off. what is the caloric value of the oil
A 496-mL sample of a gas at 263 oC is cooled at constant pressure until its volume becomes 241 mL. What is the new temperature in oC?
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
Assume that 120 grams of CH 3CH 2OH at 29 degree Celsius temperature is added with 250 grams of CH 3CH 2OH at 85 degree Celsius degree Celsius at constant pressure of atmosphere.
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2.
A gas-filled balloon having a volume of 2.50L and 1.2 atm and 25 Celsius is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23 Celsius and 3.00 x 10^-3 atm, respectively. Calcul..
On a Particular summer day, the temperature is 30.0 degrees Celsius and the relative humidity is 80.0% ( which means that the partial pressure of water vapor in the ambient air is 80.0%
Battery acid is 35% sulfuric acid in water and has a density of 1.29g/ml. What is the mass of sulfuric acid in 1.00L of battery acid?
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