Trejo reacts 5.0 moles of hydrochloric acid (HCI) with 1.5 moles of barium hydroxide (Ba(OH)2). Which reagent is the limiting reagent and which is in excess?

Answers

Answer 1

Answer: the balanced equation for the above reaction is as follows
Ba(OH)₂ + 2HCl ----> BaCl₂ + 2H₂O
stoichiometry of Ba(OH)₂ to HCl is 1:2
number of Ba(OH)₂ moles - 1.5 mol
number of HCl moles - 5.0 mol
limiting reactant is fully consumed during the reaction and amount of product formed depends on amount of limiting reactant present
excess reactant only a fraction of the amount present is used up in the reaction
if Ba(OH)₂ is the limiting reactant
if 1 mol of Ba(OH)₂ reacts with 2 mol of HCl
then 1.5 mol of Ba(OH)₂ reacts with 2 x 1.5 = 3.0 mol of HCl
but 5.0 mol of HCl is present and only 3.0 mol is required
therefore excess reagent is HCl and limiting reactant is Ba(OH)₂

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If it takes 25 mL of 0.05 M HCl to neutralize 345 mL of NaOH solution, what is the concentration of the NaOH solution? (Round answer to 4 decimal places) *

Answers

Answer:

Concentration of NaOH= 0.0036 M

Explanation:

Given data:

Volume of HCl = 25 mL

Concentration of HCl = 0.05 M

Volume of NaOH = 345 mL

Concentration of NaOH = ?

Solution:

Formula:

C₁V₁ = C₂V₂

C₁ = Concentration of HCl

V₁ = Volume of HCl

C₂ = Concentration of NaOH

V₂ = Volume of NaOH

Now we will put the values in formula.

C₁V₁ = C₂V₂

0.05 M × 25 mL = C₂ × 345 mL

1.25 M.mL = C₂ × 345 mL

C₂ = 1.25 M.mL/345 mL

C₂ = 0.0036 M

Final answer:

To find the concentration of the NaOH solution, we can use the concept of titration. By using the equation Moles = Concentration * Volume, we can calculate the moles of HCl used and then use the ratio of moles between HCl and NaOH to find the concentration of the NaOH solution.

Explanation:

To find the concentration of the NaOH solution, we need to use the concept of titration. From the given information, it takes 25 mL of 0.05 M HCl to neutralize 345 mL of NaOH solution. We can use the equation Moles = Concentration * Volume to find the amount in moles of HCl used. Then, we can use this information to calculate the concentration of the NaOH solution.

First, let's calculate the moles of HCl used:

Moles of HCl = (0.05 M) x (0.025 L) = 0.00125 mol

Next, we can use the ratio of moles between HCl and NaOH, which is 1:1, to find the moles of NaOH in the solution:

Moles of NaOH = 0.00125 mol

Finally, we can calculate the concentration using the formula:

The concentration of NaOH = (0.00125 mol) / (0.345 L) = 0.00362 M

Learn more about Concentration of NaOH solution here:

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Answers

Water on earth can exist in all 3 states: solid, liquid, and gas.
Earth is just the right distance from the sun so that temperatures are ideal for living organisms.
Earth has a protective atmosphere shielding the planet from harmful UV and X rays.

A scientist finds an organism that cannot move. It has many cells and get food from its environment. In which Kingdom does it

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How many atoms are there in 5.7 mol of Li?

Answers

Answer:Answer:

5.8

, where

Avogadro's Number,

6.022

⋅

−

Explanation:

And

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⋅

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⋅

−

What is the mass of this quantity of lithium atoms? Hint, 1 mole has a mass of

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i hope this helps

Patience, a popular card game in Mendeleev's time, is also known asSolitaire.
O
A. True
O
B. False

Answers

True

Explanation:

The statement that patience, a popular card game in Mendeleev's time is also know as solitaire is very true. It was this card game that led to the discovery of the periodic table by Mendeleev in the 19th century.

In Europe, the game is called Patience. It is commonly called solitaire in in North America.
It involves the arrangement of a deck of cards.
The game inspired the invention of the periodic arrangement of elements by Russian Chemist, Dmitri Mendeleev.
Solitaire was popular card game around the time of this discovery.

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