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dem82 [27]
3 years ago
6

A biologist who is measuring the length of salmon as they travel upstream is collecting qualitative data. True or false ?

Chemistry
2 answers:
Xelga [282]3 years ago
7 0

Answer:

False

Explanation:

4vir4ik [10]3 years ago
5 0

False because the biologist is measuring the length of the salmon, which is quantitative data.

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what is an empirical formulaWhat is the percent composition by mass of nitrogen in (NH4)2CO3 (gram-formula mass = 96.0 g/mol)?
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Answer:

Percentage composition = 14.583%

Explanation:

In chemistry, the emprical formular of a compound is the simplest formular a compound can have. It shows the simplest ratio in which the elements are combined in the compound.

Percentage composition by mass of Nitrogen

Nitrogen = 14g/mol

In one mole of the compound;

Mass of Nitrogen = 1 mol * 14g/mol = 14g

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Percentage composition of Nitrogen = (Mass of Nitrogen /  Mass of compound) * 100

percentage composition = 14/96   * 100

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Percentage composition = 14.583%

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at standard pressure, what is the temperature at which a saturated solution of NH4Cl has a concentration of 60g NH4CL/100 g H2O
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