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
Firdavs [7]
2 years ago
11

In standardizing a naoh solution a student found that 25.55cm of base neutralize exactly 21.35cm of 0.12M HCl find the molarity

of the NaoH
Chemistry
1 answer:
nalin [4]2 years ago
6 0

Answer:

O.1M

Explanation:

First let's generate a balanced equation for the reaction

NaOH + HCl —>NaCl + H2O

From the equation,

The ratio of the acid to base is 1:1.

From the question, we obtained the following:

Ma = Molarity of acid = 0.12M

Va = volume of acid = 21.35cm3

Vb = volume of base = 25.55cm3

Mb = Molarity of base =?

We obtained nA(mole of acid) and nB(mole of base) to be 1

The molarity of the base can be calculated for using:

MaVa/ MbVb = nA / nB

0.12x21.35 / Mb x 25.55 = 1

Cross multiply to express in linear form

Mb x 25.55 = 0.12x21.35

Divide both side by 25.55

Mb = (0.12x21.35) / 25.55

Mb = 0.1M

The molarity of the base is 0.1M

You might be interested in
A metal, M, forms an oxide compound with the
lapo4ka [179]

Answer:

Group 1

Explanation: because the compound has a formula of M2O , the number of valence electrons of M should be 1.

5 0
3 years ago
When aluminum is mixed with iron ii oxide iron metal and aluminum oxide?
Alexandra [31]
Are produced along with a large quantitu of heat
6 0
3 years ago
Write the following number using Scientific notation : 13,215,296.50 *​
ludmilkaskok [199]

Answer:

13.22x10^7

Explanation:

7 0
3 years ago
What is the total mass of solute in 1000. grams of a solution having a concentration of 5 parts per million?
Art [367]

50 grams or 50,000 mili grams  is the mass of solute in 1000 grams of a solution having a concentration of 5 parts per million.

Explanation:

Total mass of solution = 1000 grams or 1000 ml since 1 gram = 1 ml

concentration is 5 parts per million ( 5 mg in 1000 ml solution or 0.005 gram in 1000 ml)

the formula used for parts per million:

parts per million = \frac{mass of solute (mg)}{volume of solution}

putting the values in the equation:

parts per million = \frac{mass of solute}{volume of solvent}

0.005 x 1000 = mass of solute

50 grams= mass of solute

converting this into mg

50,000 mg. is the total mass of solute in 5ppm of 1000 ml solution.

4 0
3 years ago
Determine the number of protons, neutrons, and electrons in the following isotopes that are used in medical diagnoses: (a) atomi
il63 [147K]

Answer:

7-c=760

Explanation:

the answer is 7-c=7698

7 0
3 years ago
Other questions:
  • If you take energy away from oxygen, will it turn into water? If not, then what will turn into water if you take away energy fro
    6·1 answer
  • An atom is most stable when it has eight electrons in its outermost energy level.
    8·1 answer
  • What are the names of the products in the chemical equation shown below
    9·2 answers
  • What is the best description of the paths of S waves and P waves? S waves travel through solids or very dense, glassy liquids. P
    9·1 answer
  • The pattern of atoms and molecules give matter it’s ______<br><br> What is the blank?
    7·1 answer
  • 1. A sample of oxygen gas has a volume of 150 ml when its pressure is 440 mmHg. If the pressure is
    6·1 answer
  • Which molecule is butyne?
    5·1 answer
  • Ba(CN)2<br> What is the name of the compound?
    10·1 answer
  • What is a chemical reaction?
    7·2 answers
  • Makes up the core of the other planets<br> stars with an M and ends with E
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!