
Interpretation:
The reason for more usefulness of quantitative observation than a non-quantitative one is to be determined.
Concept introduction:
Observation is the process to watch something or someone. It is the active acquisition of information from a primary source. It also involves the perception and record of data with the help of scientific instruments.
The two types of observations are as follows:
1. Qualitative observations: The observations that can only be observed with the help of senses. Examples of such properties are taste, sight, smell, touch and hear.
2. Quantitative observations: The observations that are made with the help of instruments like rulers, balances, graduated cylinders, beakers, thermometers. Examples of such observations are the length, temperature, weight.
(a)
Interpretation:
Whether the sun rises in the east is a quantitative or qualitative observation is to be determined.
Concept introduction:
Observation is the process to watch something or someone. It is the active acquisition of information from a primary source. It also involves the perception and record of data with the help of scientific instruments.
The two types of observations are as follows:
1. Qualitative observations: The observations that can only be observed with the help of senses. Examples of such properties are taste, sight, smell, touch and hear.
2. Quantitative observations: The observations that are made with the help of instruments like rulers, balances, graduated cylinders, beakers, thermometers. Examples of such observations are the length, temperature, weight.
(b)
Interpretation:
Whether a person weighs one-sixth as much on the moon as on earth is a qualitative or qualitative observation is to be determined.
Concept introduction:
Observation is the process to watch something or someone. It is the active acquisition of information from a primary source. It also involves the perception and record of data with the help of scientific instruments.
The two types of observations are as follows:
1. Qualitative observations: The observations that can only be observed with the help of senses. Examples of such properties are taste, sight, smell, touch and hear.
2. Quantitative observations: The observations that are made with the help of instruments like rulers, balances, graduated cylinders, beakers, thermometers. Examples of such observations are the length, temperature, weight.
(c)
Interpretation:
Whether ice floats on water is quantitative or qualitative observation is to be determined.
Concept introduction:
Observation is the process to watch something or someone. It is the active acquisition of information from a primary source. It also involves the perception and record of data with the help of scientific instruments.
The two types of observations are as follows:
1. Qualitative observations: The observations that can only be observed with the help of senses. Examples of such properties are taste, sight, smell, touch and hear.
2. Quantitative observations: The observations that are made with the help of instruments like rulers, balances, graduated cylinders, beakers, thermometers. Examples of such observations are the length, temperature, weight.
(d)
Interpretation:
Whether a handpump cannot draw water from a well more than
Concept introduction:
Observation is the process to watch something or someone. It is the active acquisition of information from a primary source. It also involves the perception and record of data with the help of scientific instruments.
The two types of observations are as follows:
1. Qualitative observations: The observations that can only be observed with the help of senses. Examples of such properties are taste, sight, smell, touch and hear.
2. Quantitative observations: The observations that are made with the help of instruments like rulers, balances, graduated cylinders, beakers, thermometers. Examples of such observations are the length, temperature, weight.

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Chapter 1 Solutions
CHEMISTRY:MOLECULAR NATURE...-ALEKS 360
- Question 1. Please predict the products for each of the following reactions. Clearly show the regiochemistry (Markovnikov vs anti-Markovnikov) and stereochemistry (syn- vs anti- or both). If a mixture of enantiomers is formed, please draw all the enantiomers.arrow_forwardElectrochemistry. Briefly describe the Donnan potential.arrow_forwardIndicate what the Luther equation is used for?arrow_forward
- Indicate one aspect that benefits and another that makes it difficult to use the hydroquinone electrode to measure pH.arrow_forwardAt an electrified interface according to the Gouy-Chapman model, what types of interactions do NOT occur between the ions and the solvent according to this theory?arrow_forwardPlease predict the products for each of the following reactions. Clearly show the regiochemistry (Markovnikov vs anti-Markovnikov) and stereochemistry (syn- vs anti- or both). If a mixture of enantiomers is formed, please draw all the enantiomers. Hint: In this case you must choose the best answer to demonstrate the stereochemistry of H2 addition. 1.03 2. (CH3)2S BIZ CH₂OH 2. DMS KMnO4, NaOH ΖΗ Pd or Pt (catalyst) HBr 20 1 HBr ROOR (peroxide) HO H-SO HC 12 11 10 BH, THE 2. H2O2, NaOH Brz cold HI 19 18 17 16 MCPBA 15 14 13 A Br H₂O BH3⚫THF Brz EtOH Pd or Ni (catalyst) D₂ (deuterium) 1. Os04 2. H2O2 CH3CO3H (peroxyacid) 1. MCPBA 2. H₂O* H B + H H H "H C H H Darrow_forward
- Explain how Beer’s Law can be used to determine the concentration in a selected food sample. Provide examples.arrow_forwardExplain the importance of having a sampling plan with respect to food analysis. Explain the importance of having a sampling plan with respect to food analysis. Provide examples.arrow_forwardPlease predict the products for each of the following reactions. Clearly show the regiochemistry (Markovnikov vs anti-Markovnikov) and stereochemistry (syn- vs anti- or both). If a mixture of enantiomers is formed, please draw all the enantiomers. cold KMnO4, NaOH 2. DMS 1. 03 CH3OH Br2 1. 03 2. (CH3)2S H₂ Pd or Pt (catalyst) HBr 18 19 20 1 HBr ROOR (peroxide) H₂O H₂SO4 HCI HI 17 16 6 15 MCPBA 1. BH3 THF 2. H₂O2, NaOH 1. OsO4 2. H₂O₂ 110 CH3CO₂H (peroxyacid) 1. MCPBA 2. H₂O* Br2 H₂O BH3 THF B12 EtOH Pd or Ni (catalyst) D₂ (deuterium) Bra A B C D H OH H OH OH H OH α α α OH H OH OH фон d H "Harrow_forward
- Briefly indicate the models that describe the structure of the interface: Helmholtz-Perrin, Gouy-Chapman, Stern and Grahame models.arrow_forwardElectrochemistry. Briefly describe the Gibbs model and the Gibbs absorption equation.arrow_forwardThermodynamic analysis of electrified interfaces.arrow_forward
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