C11 Quantities (3) - Entity number

In a unit conversion calculation, the ratio of conversion has the value you want to convert into on ____ of the fraction

• the top

• the bottom

Which of the following can we not determine using spectroscopy?

• The identity of an unknown compound

• Quantity of a known compound

• The structure of a compound

• The valence electrons

In spectroscopy, an atom will more mass will deflect ___ compared to one will less mass

• More

• Less

• The same amount

What type of ions does spectroscopy use?

• Positive

• Negative

• Neutral

Most ions for spec have a ___ charge

• +1

• -1

• +2

• -2

True or false: the ions are accelerated so that they have the same kinetic energy

• True

• False

How many hydrogen atoms are in 1 mol of water?

• 6.02x10²³

• 1.24x10²⁴

• 3.01x10²³

• 1.806x10²⁴

The highest peak in a spectroscopy graph corresponds to

• The one in the highest amount

• The one with the most mass

• The one with the most charge

• The one with the most deflection

The x-axis in a mass spec graph is the

• Mass/charge ratio

• Abundance

• Molar mass

• Voltage

The mass spec changes the mass of the atoms is catches by changing the

• Velocity of the ions

• Charge of the ions

• Mass of the ions

• The magnetic field strength