Quantitative and Qualitative

Key Questions

• How can I explain the difference between quantitative and qualitative methods?

  Qualitative methods usually make a YES/NO determination of some type, whereas quantitative methods provide a numerical estimate of a quantity, including uncertainties.

  For example, a qualitative test for the presence of lead make cause a solution to turn yellow if a significant quantity of lead ions is present in solution, whereas a quantitative test might say that lead is present in a sample at a concentration of #2.6 +- 0.5# mg/L.

  Chuck W. · 1 · Jul 21 2014

• What do quantitative and qualitative measurements mean in science?
• What are quantitative and qualitative observations?
• How can I differentiate between quantitative and qualitative information?
• How does quantitative differ from qualitative information?
• How are quantitative and qualitative observations different?
• Explain the modern quantitative and qualitative decision techniques?
• What can we learn from qualitative research?
• How can I explain the difference between quantitative and qualitative methods?
• What is quantitative and qualitative data?
• What is the difference between a quantitative and a qualitative measurement?
• What is an example of a quantitative and a qualitative research practice problem?
• What are some examples of quantitative and qualitative measurements?
• Question #15259
• Question #398ea
• Question #e755c
• I have some unknown metal. How to find out what it is?
• Question #2767c
• What do the different bands of colour represent on a chromatograph?
• Why do we use disodium EDTA?
• What is the difference between qualitative and quantitative observations?
• How this reaction (during qualitative analysis) is possible: #Zn^(2+)# + NaOH ------> #Zn(OH)2# + #Na^(2+)# if Zinc is below Sodium in the reactivity series?
• How can a scientist help a colleague perform a better experiment?
• Question #db05c
• Which of the given equations correctly represents the neutralization of magnesium hydroxide by hydrochloric acid? #"a. "Mg(OH)_2(s)+2HCl(aq) rarr MgCl_2(aq) + 2H_2O(l)# #"b. "Mg(OH)_2(s)+2HCl(aq) rarr MgO(s) + 2H_2(g) + Cl_2(g)# #"c. "MgO(s)+2HCl(aq)#
• Question #92122
• What is used to scrub or clean glassware in chemistry?
• Awater pail in your backyard has a small hole in it. You notice that it has drained a total of 3.5 liters in 4 days. What is the average change in water volume each day?
• What does a chemical's MSDS tell you?
• How does good preparation help you stay safe when conducting a science experiment?
• What is the difference between sterilization and disinfection?
• How is the maximum power of magnification computed for a compound light microscope?
• Kael needs to transfer exactly 25.0 cm^3 of hydrochloric acid into a conical flask for an experiment of neutralisation. What is the best piece of apparatus to use?
• Which tools would a chemist use to find an irregularly shaped object's mass and volume?
• In a scientific investigation, the term "quantitative data" refers to numbers that are usually followed by by what?
• Question #7b57e
• What is the mass of #4.22xx10^23# lead atoms?
• Question #a1440
• While performing an experiment involving a reaction between two chemicals, the scientist observes that the reaction container has become warm. What is this observation an example of?
• A #"1.85 g"# sample of mixture of #"CuCl"_2# and #"CuBr"_2# was dissolved in water and mixed thoroughly with a #"1.8 g"# portion of #"AgCl"#. After reaction, the solid, a mixture of #"AgCl"# and #"AgBr"#, was filtered, washed, and dried, and [ . . . ] ?
• How does absorbance depend upon concentration?
• What is a quantitative measurement and what is a qualitative measurement?
• Is "a stitch in time saves nine" qualitative or quantitative?
• What does insolube mean? Is it: 1. A solid substance that won't dissolve in a liquid. 2. Any substance that does not disolve