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
ELEN [110]
4 years ago
7

Calcium hydroxide, Ca(OH)2, is neutralized by hydrochloric acid, HCl, and the products are calcium chloride and water. You have

a sample of calcium hydroxide that you know contains 2.6x1024 hydroxide ions, based on an analysis of the sample. How many grams of HCl are required to react with the available calcium hydroxide?
Chemistry
1 answer:
padilas [110]4 years ago
7 0

n = m/Mr   (n= number of moles of a compound; m= mass of a compound; Mr = formula mass of a compound)

Rearranged: m = nxMr

Using the balanced equation for the reaction; <em>Ca(OH)2 + 2HCl ---> CaCl2 + 2H2O   </em>we can see that there are 2 moles of OH- ions for every 2 moles of HCl and therefore we need to react the same number of moles of HCl as moles of OH- ions:

n, OH- ions = 2.6x10^24 mol

therefore:

n, HCl = 2.6x10^24 mol

Mr, HCl = 36.5 (use periodic table and the molecular masses of each element in the compound to find)

To calculate the mass of HCl needed, we multiply the number of moles of HCl and the Mr of HCl:

(2.6x10^24) x 36.5 = 9.49x10^25 g of HCl is required


You might be interested in
According to avagados law the volume of gas will
notka56 [123]

Answer: This law is sometimes referred to as the 'Avogadro's Hypothesis' or 'Avogadro's Principle'. This is an experimnetal gas law that is relating to the volume of gas to the amount of substance of gas that is present to the state. This law also states that ''Equal volumes of all gases, at the same temp. and pressure, have the equal amount of molecules.''.

I hope this helps you and good luck! ☺

4 0
4 years ago
Read 2 more answers
How many moles of O are present in 2.9 mol of Al2(SO4)3 ?
ad-work [718]

Answer:

34.8 moles of O

Explanation:

First we break down Al2(SO4)3 and look at SO4 only. In this compound, there are already 4 moles of O. Then you see that there are 3 moles of (SO4), meaning there are 3*4 moles of O = 12 moles in the entire compound. Then you look at the question, where it's asking for 2.9 moles of the entire Al2(SO4)3 compound, so you multiply 2.9*12 = 34.8 total moles of O.

6 0
4 years ago
What is the boiling point of kerosene
dexar [7]

Answer: The boiling point of kerosene ranges from around 150 to 300 degrees Celsius normally being closer to 300 degrees Celsius.

Explanation:

6 0
3 years ago
What is the name of the binary molecule H2O2
skad [1K]

Explanation:

H2O2: hydrogen peroxide.

hope it will help u ✌️

3 0
4 years ago
If electricity cannot be destroyed or created then why do we got to pay for electricity?
icang [17]

Energy cannot be destroyed or created. Electricity is a form of energy which has to be created from other forms of energy. We have to pay for the creation of electricity because it requires certain resources to transform other energies into electricity.

5 0
3 years ago
Other questions:
  • The term biodiversity means the variety of organism (true or false)
    13·1 answer
  • Why does the pink color, which forms at the point where NaOH comes into contact with the solution (HCl) in the flask, disappear
    14·1 answer
  • Which of these pairs of elements have the same number of valence electrons?
    14·2 answers
  • Plasma spray-coating processes are often used to provide surface protection for materials exposed to hostile environments, which
    12·1 answer
  • How does saliva maintain the pH of the mouth after bacteria produce acid from the carbohydrates we’ve consumed?
    7·1 answer
  • How many atoms of Ca are in 1.65 mol of Ca?
    6·2 answers
  • A student pours 2.5 ounces of juice into a mold and places it in the freezer.
    15·2 answers
  • Name the process by which the ammonia and hydrogen Chlorade<br> gass<br> nove in the tube-
    8·1 answer
  • If you have a room that is 14 feet wide, 20.5 feet long, with 10 foot ceilings. What is the total
    13·2 answers
  • Which of these attacking reagent is an electrophile 1:HNO3 2:Nh3 3:Br- 4: H+​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!