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What is the pH of a 0.048 M H2SO4 solution? and What is the pH of a 0.219 M weak acid with a pKa of 5.22? Please show work.
snickers bar holds 1.17 megajoules of energy. How many large calories or Calories are present in a snickers bar?
Combustion of a .2000g sample of vitamin C sample produced .2998 g of carbon dioxide and .0819 g of water. If this compound is composed of C, H, and O, then what is its empirical formula?
In fruit flies, gray body color is dominant over black body color. Using the letter G to represent body color, what is the genotype of a heterozygous gray bodied fly?
What is the pH of a solution prepared by mixing 25.00 mL of a 0.10 M solution of the weak acid CH3CO2H with 25.00 mL of 0.040 M sodium acetate, CH3CO2Na? Assume that the volume of the solutions are additive and that Ka = 1.8 ?* 10-5 for CH3CO2H.
An atmospheric chemist fills a gas-reaction container with gaseous dinitrogen pentaoxide to a pressure of 110. kPa and the gas decomposes to nitrogen dioxide and oxygen. Explain what is the partial pressure of nitrogen dioxide, PNO2, (in kPa) when..
as a side?reaction organometallic reagents can react with atmospheric co2 to produce metal carboxylates while the cacl2
Depict Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another. Species which are isoelectronic have the same number of atoms
What is the molarity of a 1.304 L solution that is made from 14.80 g of NaCl?Answer in units of M.
Explain how many electrons are necessary to produce a charge of -1.3C. Explain what is the mass of the many electrons
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
Calculate the specific heat capacity of the metal when the final temperature of the mixture =38.7?C.? (Assume that there is no energy lost to the surroundings.)
If the caffeine concentration in a particular brand of soda is 3.13 mg/oz, drinking how many cans of soda would be lethal? Assume 10.0 grams of caffeine is a lethal dose, and there are 12 oz in a can.
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