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What is the concentration of a solution of iron(II) sulfate if its absorbance at a wavelength of 495 nm is 0.456 in a 1 cm cuvette with a path length of 1 cm? The molar absorptivity of iron(II) sulfate at 495 nm is 8100 L/mol·cm. The molecular weight of iron(II) sulfate is 151.91 g/mol.
asked
Jan 30
in
Analytical Chemistry
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47
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According to the cognitive approach, why do people behave the way they do?
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Jan 17
in
Psychology
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1
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133
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According to William James, what is consciousness like?
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Jan 17
in
Psychology
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214
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When evaluating situated learning theory, what is a major strength of this perspective?
asked
Jan 16
in
Psychology
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1
answer
57
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What are some common treatments for sexual dysfunction?
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Jan 14
in
Psychology
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1
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63
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What is the difference between a one-tailed and a two-tailed hypothesis?
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Jan 14
in
Psychology
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1
answer
118
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What is a dependent variable?
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Jan 14
in
Psychology
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1
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106
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What three primary colors of light can be distinguished by the human eye?
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Jan 8
in
Science
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108
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What is the term for liquid waste formed by kidneys?
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Jan 7
in
Science
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1
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113
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What basic cell structure is made up of a phospholipid bilayer and two layers of phospholipid molecules?
asked
Jan 6
in
Science
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1
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67
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What are protons and neutrons that make up the nucleus of an atom called?
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Jan 3
in
Science
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1
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139
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The stem of a horsetail is characterized by the presence of joints, or nodes: hence the name arthrophyta, which means this?
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Jan 2
in
Science
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113
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The pulmonary artery carries deoxygenated blood into the lungs from this?
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Jan 2
in
Science
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answer
77
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Light energy is absorbed by which kind of molecule?
asked
Dec 31, 2024
in
Science
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1
answer
91
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Is sweat an exocrine or endocrine substance?
asked
Dec 31, 2024
in
Science
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1
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174
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In a food chain, what group of organisms breaks down animal remains and wastes to get energy?
asked
Dec 30, 2024
in
Science
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103
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Cancer involves what changes that modify cell-cycle control and alter the growth rate or progression of the cell through the cell cycle?
asked
Dec 27, 2024
in
Science
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