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3 years ago

Therefore, the independent variable was and the dependent variable was

Chemistry

2 answers:

viva [34]3 years ago

8 0

Answer:

1. Temperature

2. Solubility

Explanation:

den301095 [7]3 years ago

5 0

Answer:

The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.

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At what temperature do kno3 and nacl have the same molar solubility

Veseljchak [2.6K]

We are asked to solve the temperature do Potassium Nitrate KNO3 and Sodium Chloride NaCl has the same molar solubility. The answer is 44.5 degrees Celsius. As per the definition of solubility temperature, the solubility increases when the temperature increases where molecules are allowed to move faster at a higher temperature.

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3 years ago

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4 years ago

You need 65.0 g of aluminum for an experiment. How many atoms of aluminum is that?

nikdorinn [45]

Answer:

Explanation:

To convert the mass of Aluminum to atoms, we must first convert to moles by using the formula;

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3 years ago

Substance A is a nonpolar liquid and has only dispersion forces amongits constituent particles. Substance B is also a nonpolar l

alekssr [168]

Answer:

(a) when both the liquid are mixed, they become completely miscible as the intermolecular forces between them are equal to the intra molecular forces

(b) since the magnitude of intermolecular force = intra molecular forces, Delta H solution=0

Delta H solvent = positive

Delta H mix = negative

Explanation:

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3 years ago

Rank the following compounds from least acidic(rank 1) to most.A. AcetaldehydeB. Methyl acetate.C. N,N-dimethylacetamide1. least

Phoenix [80]

Answer:

N,N-dimethylacetamide < Methyl acetate < Acetaldehyde

Acetaldehyde - least acidic

Methyl acetate - acidic

N,N-dimethylacetamide - most acidic

Explanation:

The order of acidity of the organic compound under study is primarily influenced by their resonance effect. The resonance effect explains how polar a particular molecule is from the interaction between pi -bonds or a lone electron pair and a pi-bond in a molecule.

In acetaldehyde popularly known as ethanal, the CH₃CHO functional group -CHO is attached to an adjacent end of the compound, which has a lesser resonance effect than methyl acetate.

Methyl acetate, also known as methyl ethanoate, is an ester family with the formula CH₃COOCH₃ is also lesser in its acidity compared to N,N-dimethylacetamide.

Therefore, the order of acidity from the least acidic to the most is:

N,N-dimethylacetamide < Methyl acetate < Acetaldehyde

Acetaldehyde - least acidic

Methyl acetate - acidic

N,N-dimethylacetamide - most acidic

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3 years ago