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Naya [18.7K]
3 years ago
5

This scientist focused his study on planetary motion. One of his laws is the planets orbit the Sun in elliptical patterns.

Physics
1 answer:
Savatey [412]3 years ago
8 0
I believe that since Kepler focused his studies the rotation of the planets, and the stars, that he is the one who developed the law, which is called the first law of planetary motion.
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Acetic acid (HC2H3O2) is an important ingredient of vinegar. A sample of 50.0 mL of a commercial vinegar is titrated against a 1
butalik [34]

Answer:

The concentration of acetic acid present in the vinegar is 0.113M

Explanation:

1. As the titration occurs between an acid and a base is called neutralization. The balanced chemical reaction between the acetic acid and the NaOH is:

NaOH+HC_{2}H_{3}O_{2}=NaC_{2}H_{3}O_{2}+H_{2}O

2. Calculate the moles of NaOH used, taking in account the concentration of NaOH 1.00M:

5.65mL*\frac{1.00molesNaOH}{1000mLNaOH}=0.00565molesNaOH

3. Calculate the number of moles of acetic acid neutralized using stoichiometry:

0.00565molesNaOH*\frac{1molHC_{2}H_{3}O_{2}}{1molNaOH}=0.00565molesHC_{2}H_{3}O_{2}

4. Calculate the concentration of acetic acid present in the vinegar:

\frac{0.00565molesHC_{2}H_{3}O_{2}}{50.0mLvinegar}*\frac{1000mLvinegar}{1Lvinegar}=0.113M

5 0
3 years ago
A car traveled 330 miles in 6 hours. What is the average speed?
shusha [124]

it is 55 mph that is ok


6 0
3 years ago
In both ionic and molecular bonds, the resulting compound is stabilized because
frosja888 [35]

Answer: In both ionic and molecular bonds, the resulting compound is stabilized because each atom's outer electronic orbital is full.

Explanation:

Molecular bonds are also called covalent bonds. A covalent bond is formed by sharing of electrons between two or more atoms.

For example, atomic number of hydrogen is 1 and atomic number of nitrogen is 7 (2, 5). In order to attain stability hydrogen atom needs to gain one electron whereas nitrogen needs to gain 3 electrons.

Hence, 3 atoms of hydrogen chemically combine with one atom of nitrogen by sharing electrons and thus it forms the compound NH_{3}.

Ionic bonds are the bonds formed by transfer of electrons from one atom to another.

For example, atomic number of sodium is 11 (2, 8, 1) and atomic number of chlorine is 17 (2, 8, 7). In order to attain stability sodium needs to lose one electron whereas chlorine needs to gain one electron.

Hence, when sodium combines chemically with chloride then sodium will transfer its 1 valence electron to the chlorine atom and thus it forms the compound NaCl.

Therefore, we can conclude that in both ionic and molecular bonds, the resulting compound is stabilized because each atom's outer electronic orbital is full.

7 0
3 years ago
What are the two factors that determine the density of water mass?
BigorU [14]
Temperature and salinity
5 0
3 years ago
a worker in a factory has discovered a material that is very confusing.it can be stored in a container but it can also flow from
tamaranim1 [39]

Answer:

liquid?

Explanation:

liquid: A substance that flows and keeps no definite shape because its molecules are loosely packed and constantly moving. It takes the shape of its container but maintains constant volume.

7 0
2 years ago
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