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Calculate the following when 0.250 L of 0.259 M AgNO3 solution is mixed with 0.350 L of 0.300 M Na2CO3 solution. Ksp for Ag2CO3 is 8.46E-12. What mass of the precipitate forms? What is the concentration of Ag+ remaining in solution?
1. How many CO2 molecules are needed to produce 1 glucose molecule (in photosynthesis)? 2. How many moles of oxygen atoms are in 1 mole of calcium phosphate?
Which of the following statements regarding the possible effects of radiation on a cell is incorrect. Radiation can pass through a cell with no damage.
Calculate the mass percent of a NaCl solution in which 110 g of NaCl is dissolved in 2.41 L of water at 25 0C (density = 0.997 rm g/mL).
For the given reaction, how many moles of ammonia will result from 3.0 moles of nitrogen and sufficient hydrogen
What is the pH of the solution after the addition of 80.0 mL of 0.0500 M NaOH(aq) to the buffer. What is the pH of the solution after the addition of 10.0 mL of 1.0 M HNO3(aq) to the initial buffer
Some of the formulas below could be either molecular or empirical formulas; however, some could only be molecular formulas. Which of the following formulas must be molecular formulas
devise a general method for determining the fractional abundances of two or more isotopes from a mass spectrum. your method must include some means of measuring the signals
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
the solubility of n2 in blood at 37 oc and at a partial pressure of 0.80 atm is 5.6 x 10-4 moll. a deep-sea diver
Suppose you were instructed to add 38 g of sodium chloride (NaCl) to 100 mL of water. a. prepared as instructed at 20°C b. heated the mixture in (a) to 100°C
Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate Imagine that andA, B are cations and X,Y Z,, and are anions, and that the following reactions occur
assume you dissolve 2.56g of malic acid c4h605 in half a liter of water 500g. calculate the molarity molality mole
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