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3 years ago

Calculate the molar solubility of pbi2 in the presence of 0.10 m nai.

Chemistry

1 answer:

lys-0071 [83]3 years ago

5 0

The equation representing the solubility of $PbI_{2}$ :

$PbI_{2}(aq)Pb^{2+}(aq) + 2 I^{-}(aq)$

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Adding an oxygen atom to a carbon atom in an organic molecule causes the carbon atom to become more?

Marat540 [252]

Answer:

diluted or stronger

Explanation:this is caused by the addition of oxygen and it is normally overbearing of ends up changing the whole molecule

3 0

3 years ago

What is the ratio between the mass of nitrogen and oxygen in N2O3?

Ket [755]

Answer:

12:7

Explanation:

To Determine: To calculate the formula of the unknown binary compound of oxygen and nitrogen and to ratio in the next compound of the series using given data.Answer:The formula of the unknown compound .The ratio for atoms of oxygen to nitrogen inis .The mass ratio of oxygen to nitrogen in next member of the series of compounds is .Explanation:The mass ratio of toinis .The mass ratio of toin theunknown compound is .The atomic mass of the oxygen is .The atomic mass of the nitrogen is .The mass ratio of to in a molecule can be represented as: …… (1)Here,is the number of atoms of the oxygen in the molecule.is the mass of an atom of oxygen.is the number of atoms of the nitrogen in the molecule.is the mass of an atom of nitrogen.For unknown compound, substitutefor , for and for mass ratio in equation (1).The ratio of atoms of oxygen to nitrogen is , therefore, the expected formulas of the unknown compound is and . If the unknown compound is in a series with then the formula of the unknown compound and the formula for the next member of the series is .The ratio for atoms of oxygen to nitrogen inis .For , substitute 5 for , for , 2 for and for in equation (1).The mass ratio of oxygen to nitrogen in next member of the series of the compounds is .

6 0

3 years ago

Perform the following operation and express the answer in scientific notation. 7.0x10^3x1.1x10^7

dimulka [17.4K]

Answer:

The answer is: $7.7\times10^{10}$

Explanation:

Scientific notation is of the kind: $a.bc\times10^{x}$

The given calculation:

$7.0\times10^{3}\times1.1\times10^{7}=(7\times1.1)\times10^{(3+7)}$

$=7.7\times10^{10}$

Therefore, the answer in scientific notation is: $7.7\times10^{10}$

4 0

2 years ago

Which elements in the periodic table are metalloids or have semimetallic properties

Marysya12 [62]

Hi There! :)

Which elements in the periodic table are metalloids or have semimetallic properties?

Boron, Silicon, Germanium, Arsenic, Antimony, and Polonium are all metalloids. Some people consider Astatine a metalloid

8 0

3 years ago

A neutral atom possesses an atomic number of 15 and an atomic mass of 31. Three electrons are gained. What is the result of this

Katyanochek1 [597]

Answer: an anion will form with -3 charge.

Explanation;

The atomic number of the given atom = 15

Atomic number = number of protons

The number of protons of the given atom = 15

The atomic mass of the given atom = 31

Atomic mass = number of protons + number of neutrons

Hence,

number of neutrons = atomic mass - number of protons

= 31 - 15

= 16

Since, the atomic number is 15, the given atom is P which has the atomic number as 15.

In the neutral compound,

number of protons = number of electrons

Hence,

the number of electrons of the neutral atom = 15

But, the atom has gained 3 electrons.

Gaining of electrons will form anions.

Hence, the atom will be converted into anion which has -3 charge on it.

But the atomic mass, atomic number, number of protons and number of electrons will not be changed

6 0

3 years ago

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