All categories

3 years ago

FIRST TO ANSWER CORRECTLY GETS BRAINELSIT! pls asap :)

Chemistry

2 answers:

wlad13 [49]3 years ago

5 0

Answer:

I'm prettty sure its the protons

Explanation:

zmey [24]3 years ago

4 0

The protons! Is it the answer

You might be interested in

Write the balanced equation for the reaction of aqueous Pb ( ClO 3 ) 2 Pb(ClO3)2 with aqueous NaI . NaI. Include phases. chemica

FinnZ [79.3K]

<u>Answer:</u> The mass of precipitate (lead (II) iodide) that will form is 119.89 grams

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

Molarity of NaI solution = 0.130 M

Volume of solution = 0.400 L

Putting values in above equation, we get:

$0.130M=\frac{\text{Moles of NaI}}{0.400L}\\\\\text{Moles of NaI}=(0.130mol/L\times 0.400L)=0.52mol$

The balanced chemical equation for the reaction of lead chlorate and sodium iodide follows:

$Pb(ClO_3)_2(aq.)+2NaI(aq.)\rightarrow PbI_2(s)+2NaClO_3(aq.)$

The precipitate (insoluble salt) formed is lead (II) iodide

By Stoichiometry of the reaction:

2 moles of NaI produces 1 mole of lead (II) iodide

So, 0.52 moles of NaI will produce = $\frac{1}{2}\times 0.52=0.26mol$ of lead (II) iodide

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of lead (II) iodide = 0.26 moles

Molar mass of lead (II) iodide = 461.1 g/mol

Putting values in above equation, we get:

$0.26mol=\frac{\text{Mass of lead (II) iodide}}{461.1g/mol}\\\\\text{Mass of lead (II) iodide}=(0.26mol\times 461.1g/mol)=119.89g$

Hence, the mass of precipitate (lead (II) iodide) that will form is 119.89 grams

4 0

3 years ago

The chemical name of copper ii tetra sulphate pentahydrate

Anastasy [175]

hope it's helpful ❤❤❤

THANK YOU.

3 0

2 years ago

In a chemical reaction, what is defined as the difference between the potential energy of the products and the potential energy

zlopas [31]

I Believe That The Answer Is A
Hope This Helps !

6 0

3 years ago

Read 2 more answers

What is the displacement of the particle in the time interval 7 seconds to 8 seconds?

3241004551 [841]

Answer:

28 is great.......... it should be snSwer

8 0

3 years ago

To satisfy the octet rule in an ionic reaction, selenium must:

4vir4ik [10]

Answer:

Answer A

Explanation:

because it had 6 electrons in the last shell so it needs two electrons to reach 8

7 0

2 years ago

Read 2 more answers