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Soloha48 [4]
3 years ago
13

Molar mass of acetone(CH3COCH3)​

Chemistry
2 answers:
ladessa [460]3 years ago
6 0
58.08 g/mol

Formula: C3H6O
Melting point: -139°F (-95°C)
Density: 784 kg/m³
g100num [7]3 years ago
4 0

Answer:

58.09 g/mol

Explanation:

To find the molar mass, add together the atomic masses of all the elements in the compound.

C - 3 × 12.01 = 36.03

H - 6 × 1.01 = 6.06

O - 16.00

36.03 + 6.06 + 16.00 = 58.09 g/mol

The molar mass of acetone is 58.09 g/mol.

Hope that helps.

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5 0
3 years ago
Which of the following is NOT true regarding Rutherford's Gold Foil experiment?
erastova [34]

Answer:

The area around the nucleus must be of low mass.

Explanation:

Rutherford`s experiment showed that there are some positive charges in the center of the atoms, and because they are all together, they will give a great mass to the atom.

It was quite different from Thomson`s experiment, in which it was thought that the negative charges were mixed with the positive charges, around the atom (like a Pudding Model). In Rutherford`s experiment, because the direction of beta particles, it was the prediction of the positive nucleus.

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8 0
3 years ago
Which of the following reactions is a synthesis reaction?
Vedmedyk [2.9K]
<h3>Answer:</h3>

B) 4H₂(g) + O₂(g) ⟶ 2H₂O(l)

<h3>Explanation:</h3>
  • Chemical reactions occur when compounds or elements combine to form new compounds or other elements.
  • Chemical reactions may be classified into various types which include synthesis reactions, replacement reaction, decomposition reactions, and precipitation reactions among others.
  • In our case, we were supposed to identify a synthesis reaction.
  • Thus, we need to know what is a synthesis reaction.
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5 0
2 years ago
Identify the variables in the investigation: An investigation was done with an electromagnetic system made from a battery and wi
kondaur [170]

Answer:

Independent: sizes of nails

Dependent: number of paper clips

Controlled: Battery, wire and type of nails

Explanation:

An independent variable is a variable which when changes does not the effect the results of the experiment. It does not depends upon the dependent variable.

A dependent variable is defined as a variable which is affected when the independent variable is changed by the researcher or the experimenter. It depends greatly upon the independent variable.

While a controlled variable is that variable whose value is not changed in an experiment. It contains all the constants.

In the context,

the independent variable are : sizes of nails

the dependent variables are : number of paper clips

the Controlled variables are: Battery, wire and type of nails

8 0
2 years ago
Balance the following equation in acidic conditions. Phases are optional. Cu NO3,
Gwar [14]
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2- Cu- 2
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5 0
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