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The HCl concentration in a hyperacidic stomach is 0.03 M. The volume of liquid in the stomach is 300 mL. How many tablets of the antacid which you analyzed would have to be taken to bring the concentration of HCl in the stomach to a more normal level of 0.0003 M?
a student calculates the density of iron as 5.72 gcm3 by using lab data for mass and volume. a handbook reveals that
Calculate the initial rate of the NO reduction at 1100 K if 400.00 mg of NO and 600.00 mg of H2 are confined to a 5.00 L reaction vessel.
how many mM of nitrogen atoms in 1g/L of (NH4)2SO4. molecular mass of (NH4)2SO4 is 132.14g/mol
What is the molecular formula of each compound. (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.
A chemist has isolated a new natural product and determined its molecular formula to be C24H40O4. In hydrogenation experiments the chemist found that each mole of the natural product reacted with two moles of H2. How many rings are present in the ..
Determine the osmotic pressure of a solution that contains 0.042 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.
What is the concentration of [Br?] in a solution of 15 mL of 5 M HBr when 5 mL of water is added?
Calculate the expectation values for a particle in the state n = 5 moving in a one-dimensional box of length 2.48×10^(?10)m If someone can just help me out with the set up of the problem thatd be helpful.
Can you please explain valence electrons and how I go about determining the valence electron for different elements
A solution of codeine is made by dissolving 7.79 g of codeine in water to make 14.7 L of solution. If the pH of this codeine solution is 9.59, calculate the Kb of codeine.
What is the solubility of Ca(OH)2 in 0.0500 M NaOH assuming both Ideal and Real behavior?
an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?
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