1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alla [95]
3 years ago
15

A 150 mL sample of hydrochloric acid (HCl) completely reacted with 60.0 mL of a 0.100 M NaOH solution. The equation for the reac

tion is given below.
HCl + NaOH mc011-1.jpg NaCl + H2O

What was the original concentration of the HCl solution?
Chemistry
2 answers:
Marizza181 [45]3 years ago
7 0
The balanced chemical reaction is expressed as:
HCl + NaOH ---> NaCl + H2O
We are given the amount and the concentration of the sodium hydroxide reactant. This will be the starting point for the calculations. 
0.100 mol NaOH/L solution (0.06 L solution) ( 1 mol HCl / 1 mol NaOH) = 0.006 mol HCl
Molarity = amount in moles / Volume of solution = 0.006 mol HCl/ 0.150 LMolarity = 0.04 M
IceJOKER [234]3 years ago
6 0

Answer : The original concentration of HCl is 0.04 M

Explanation:

HCl+NaOH\rightarrow NaCl+H_2O

According to the neutralization law,

M_1V_1=M_2V_2

where,

M_1 = molarity of NaOH solution = 0.100 M

V_1 = volume of NaOH solution = 60.0 ml

M_2 = molarity of HCl solution = ?

V_2 = volume of HCl solution = 150 ml

Now put all the given values in the above law, we get the molarity of HCl solution.

(0.100M)\times 60ml=(M_2)\times (150ml)

M_2=0.04M

Therefore, the original concentration of HCl is 0.04 M

You might be interested in
__Zn(s)+__CuSO4(aq)--->_______+________
stiks02 [169]

Answer:

Zn + CuSO4 —> ZnSO4 + Cu

Explanation:

Zn is higher than Cu in electrochemical series and so will displaces Cu in solution according to the equation:

Zn + CuSO4 —> ZnSO4 + Cu

5 0
3 years ago
Which statement explains how the periodic table is arranged?. . A.. The periodic table is arranged by the radioactivity levels i
vova2212 [387]
The periodic table is arranged by the outermost electrons of the elements and this is the statement among the given statements that explains how the periodic table is arranged. The correct option among all the options that are given in the question is the second option or option "B".
7 0
3 years ago
Read 2 more answers
Which of the following elements will lose electrons to form an
photoshop1234 [79]
B and c...will lose electron(s) in forming an Ion.

P is an Anion
b..Fe. and c...Pb form Cations (+) by losing electrons.
d. Se is an Anion.
4 0
3 years ago
Plz help this was due yesterday butttttt i didn’t want to do it...
sergejj [24]
So what am I suppose to answer here?
8 0
3 years ago
Read 2 more answers
What is the net ionic equation for the reaction<br> ofFeCl3 and KOH in water?
Levart [38]

Answer:

Fe³⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s)

Explanation:

First, we will write the molecular equation because it is the easiest to balance.

FeCl₃(aq) + 3 KOH(aq) → Fe(OH)₃(s) + 3 KCl(aq)

The full ionic equation includes all the ions and the molecular species.

Fe³⁺(aq) + 3 Cl⁻(aq) + 3 K⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s) + 3 K⁺(aq) + 3 Cl⁻(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

Fe³⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s)

8 0
3 years ago
Other questions:
  • For the following reaction, it is found that doubling the amount of A causes the reaction rate to quadruple. Doubling the amount
    15·1 answer
  • If the temperature of a piece of steel decreases, what happens to its density? a. The density decreases. b. The density increase
    5·2 answers
  • How much Sr(OH)2 • 8 H2O (M = 265.76) is needed to prepare 250.0 ML of solution in which [OH]= 0.100M?
    8·2 answers
  • Coal, like graphite is composed of carbon. Unlike graphite, coal is formed from decayed,once-living matter. Is it a mineral? Ple
    13·2 answers
  • Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. draw
    6·1 answer
  • Acetone, a common solvent, has density 0.79g/cm3 at 20 degrees celcius. What is the volume of 85.1g of acetone at 20 degrees cel
    8·2 answers
  • On a ceiling, there were tiny droplets of blood less than 1 mm in diameter. the victim was lying in a pool of blood. no other ma
    7·1 answer
  • 08 03 M
    9·1 answer
  • HELP ASAP!!! Which two energy transformations are shown in the photo? A. Chemical energy → electromagnetic energy B. Chemical en
    8·2 answers
  • the two stages that take place during distillation are. a.evaporation is folloeed by condensation. b.condensation followed by ev
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!