Question

In: Chemistry

Consider the following statements as they apply to mass spectrometry. Decide if each is true or...

Consider the following statements as they apply to mass spectrometry. Decide if each is true or false.

True False  It is possible to get a mass spectrum of large analytes like polymers and biomolecules because of the development of ionization techniques such as MALDI and FAB.
True False  For a particular analyte, the mass spectrum obtained is highly dependent upon the ionization technique used.
True False  Though a gas chromatograph (GC) is a common way to introduce a sample into a mass spectrometer, a liquid chromatograph (LC) is never used for this purpose.
True False  A mass spectrometer is an instrument that produces ions and separates them according to their mass to charge ratios, m/z.
True False  The nominal mass of an ion is calculated by summing up the atomic masses of the most abundant isotopes.

P.S. the answer is not F, T, F, T, F - please do not answer if you do not know I have one attempt left for this homework

Solutions

Expert Solution

1.     True False  It is possible to get a mass spectrum of large analytes like polymers and biomolecules because of the development of ionization techniques such as MALDI and FAB. T

2.     True False  For a particular analyte, the mass spectrum obtained is highly dependent upon the ionization technique used. T

3.     True False  Though a gas chromatograph (GC) is a common way to introduce a sample into a mass spectrometer, a liquid chromatograph (LC) is never used for this purpose. F

4.     True False  A mass spectrometer is an instrument that produces ions and separates them according to their mass to charge ratios, m/z. T

5.     True False  The nominal mass of an ion is calculated by summing up the atomic masses of the most abundant isotopes. T

P.S. the answer is not F, T, F, T, F - please do not answer if you do not know I have one attempt left for this homework


Related Solutions

Consider the following statements as they apply to radiation sources and atomic spectroscopy. Decide if each...
Consider the following statements as they apply to radiation sources and atomic spectroscopy. Decide if each is true or false. True or False  Room lights contribute significantly to the background noise in AAS. True or False  Photons transmitted through the sample are detected in AES. True or False  The fill gas in a hollow cathode lamp is inert and does not play an important role in the emission of characteristic radiation from a hollow cathode lamp. True or False  Neutral Ca atoms, singly charged...
For each of the following statements, decide if the statement is true or false and explain...
For each of the following statements, decide if the statement is true or false and explain why: A) If Jane buys a brand new 2016 car in 2017, 2017 GDP does not change. B) The CPI is a better indicator of the price level than the GDP deflator C) If workers at a customer service call center in Durham, NC get laid-off because their company has moved the call center to India; this is an example of cyclical unemployment. D)...
Decide whether each of the following statements makes sense (or is clearly true) or does not...
Decide whether each of the following statements makes sense (or is clearly true) or does not make sense (or is clearly false). Explain your reasoning. 1. I haven't won in my last 25 pulls on the slot machine, so I'm due to win on the next pull 2. The larger a sample you take, the more the population looks like a normal distribution 3. The larger a sample you take, the closer the sample itself is to being normally distributed
Consider each of the statements below. For each statement, decide whether it is sometimes, always, or...
Consider each of the statements below. For each statement, decide whether it is sometimes, always, or never a true statement.    ?    Always    Sometimes    Never      1. In a hypothesis test, the direction of the alternative hypothesis (right-tailed, left-tailed, or two-tailed) affects the way the effect size is estimated.    ?    Always    Sometimes    Never      2. In a hypothesis test, the direction of the alternative hypothesis (right-tailed, left-tailed, or two-tailed) affects the way the p-value is computed.    ?    Always    Sometimes    Never      3. A hypothesis test that produces a ?p-value <0.001<0.001 will produce an effect size |?̂|>0.8|d^|>0.8...
Decide which of the following statements are True and which are False about equilibrium systems: True...
Decide which of the following statements are True and which are False about equilibrium systems: True False  For the following reaction: H2(g) + F2(g) ⇌ 2HF(g) the values of K and Kp are not the same. True False  A large value of K means the equilibrium position lies far to the left. True False  For a reaction with K >> 1, the rate of the forward reaction is greater than the rate of the reverse reaction at equilibrium. True False  For the following reaction:...
Decide which of the following statements are true and which are false. 1. In order for...
Decide which of the following statements are true and which are false. 1. In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the H2(g) sample must be at a higher temperature than the O2(g) sample. 2. At constant temperature, the heavier the gas molecules, the smaller the average kinetic energy. 3. As temperature decreases, the average kinetic energy of a sample of gas molecules increases. 4. At constant temperature, the lighter...
Read the following statements and decide if they are true sometimes, always or never. Be sure...
Read the following statements and decide if they are true sometimes, always or never. Be sure to give a reason for each statement or use an example and the reason why it shows the statement is false. You can download this document in the module one section Fractions and attach it if you prefer. All fractions are less than one Improper fractions are greater than or equal to one Proper fractions are less than one Fractions are always part of...
Which of the following statements is true regarding gustation? list all that apply.
Which of the following statements is true regarding gustation? list all that apply.    Taste is chemical sense.    It's easier to taste with a dry tongue.    Humans are more sensitive to taste than to smell.    When gustatory hairs are stimulated, a receptor potential is created.    All of the primary tastes can be detected throughout the tongue.
Question 2 [10] TRUE/FALSE QUESTIONS Consider the following list of statements. Each statement is either true...
Question 2 [10] TRUE/FALSE QUESTIONS Consider the following list of statements. Each statement is either true or false. You must read each statement carefully and then select the option that you believe is correct as your answer. Write down only the question number and next to the number either “True” or “False”. 2.1. The level or rate of unemployment is a stock concept, that is, it is measured at a particular date. 2.2. The consumer price index (CPI) is an...
Decide which of the following statements are true and which are false. True False  Real gas molecules...
Decide which of the following statements are true and which are false. True False  Real gas molecules behave most ideally at low temperature and high pressure. True False  At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy. True False  At constant temperature, the lighter the gas molecules, the smaller the average velocity. True False  In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT