1.A 0.4505 g sample of CaCO3 was dissolved in a small amount of concentrated HCl and the resulting solution diluted to 250.0 mL in a volumetric flask. A 25.00 mL sample of the solution required 24.25 mL of an EDTA solution for titration to the Eriochrome Black T end point. What is the concentration of the EDTA solution?
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The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles
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A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?
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As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit
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Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations
Answers: 1
1.A 0.4505 g sample of CaCO3 was dissolved in a small amount of concentrated HCl and the resulting s...
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