In a Mass Spectrometer, Chlorine Ions of Mass 35u and 37u

question 17

Multiple Choice

In a mass spectrometer, chlorine ions of mass 35u and 37u, each with charge +5e, are emitted from a source and accelerated through a potential difference of 300 kV. They then enter at the same point) a region with a magnetic field of 0.20 T that is perpendicular to their original direction of motion. Calculate the separation between the two chlorine ions after they have made a half circle path in the magnetic field region. u = 1.66 × 10^-27 kg, e = 1.6 × 10^-19 C)

• A) 1.0 m
• B) 24 cm
• C) 5.9 cm
• D) 2.9 cm
• E) 12 cm

Calculate and interpret risk and prevalence rates in various populations.

Understand the calculation of incidence rates in epidemiological studies.

Identify the role of active surveillance in responding to disease outbreaks.

Differentiate between the numerator and denominator in calculations of incidence rates.

---

Definitions:

Makeup

Cosmetic products applied to enhance or alter one's appearance on the face and body.

Jewelry Safety

Guidelines or practices aimed at reducing risks associated with wearing jewelry, especially in environments where it might be hazardous.

Venous Thromboembolism

A condition where blood clots form in the vein, potentially leading to complications like pulmonary embolism.

Pneumatic Compression

A therapeutic technique using air-filled devices to apply pressure on limbs, enhancing blood flow and reducing the risk of deep vein thrombosis.