Chemistry, 24.05.2021 14:00 juliannabartra
One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) technique. As corn photosynthesizes, it concentrates the isotope carbon-13, whereas most other plants concentrate carbon-12. Over-reliance on corn consumption can then be correlated with certain diseases, because corn lacks the essential amino acid lysine. Archaeologists use a mass spectrometer to separate the C12 and C 13 isotopes in samples of humans remains. Suppose you use a velocity selector to obtain single ionized (missing one electron) atoms of speed 8.50 km/s and what to bend them within a uniform magnetic field in a semicircle of diameter 25.0 cm for the C12 . The measured masses of these isotopes are 1.99 × 10^-26 kg ( C12 ) and 2.16 × 10^-26 kg ( C13).
Required:
a. What strength of magnetic field is required? (b) What is the diameter of the 13C semicircle?
b. What is the separation of the C12 and C13 ions at the detector at the end of the semicircle? Is this distance large enough to be easily observed?
Answers: 3
Chemistry, 22.06.2019 19:30
Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
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Chemistry, 23.06.2019 02:00
Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive
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One method for determining the amount of corn in early Native American diets is the stable isotope r...
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