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
marissa [1.9K]
3 years ago
6

Calculate the moles of calcium chloride (CaCl2) needed to react in order to produce 85.00 grams of calcium carbonate (CaCO3). us

e the balanced equation!
Chemistry
2 answers:
BartSMP [9]3 years ago
5 0

Answer:

0.85 mole

Explanation:

Step 1:

The balanced equation for the reaction of CaCl2 to produce CaCO3. This is illustrated below:

When CaCl2 react with Na2CO3, CaCO3 is produced according to the balanced equation:

CaCl2 + Na2CO3 -> CaCO3 + 2NaCl

Step 2:

Conversion of 85g of CaCO3 to mole. This is illustrated below:

Molar Mass of CaCO3 = 40 + 12 + (16x3) = 40 + 12 + 48 = 100g/mol

Mass of CaCO3 = 85g

Moles of CaCO3 =?

Number of mole = Mass /Molar Mass

Mole of CaCO3 = 85/100

Mole of caco= 0.85 mole

Step 3:

Determination of the number of mole of CaCl2 needed to produce 85g (i.e 0. 85 mole) of CaCO3.

This is illustrated below :

From the balanced equation above,

1 mole of CaCl2 reacted to produced 1 mole of CaCO3.

Therefore, 0.85 mole of CaCl2 will also react to produce 0.85 mole of CaCO3.

From the calculations made above, 0.85 mole of CaCl2 is needed to produce 85g of CaCO3

zalisa [80]3 years ago
4 0

Answer:

We need 94.3 grams of CaCl2

Explanation:

Step 1: Data given

Mass of Calciumcarbonate ( CaCO3) = 85.00 gram

Molar mass CaCO3 = 100.09 g/mol

Molar mass of CaCl2 = 110.98 g/mol

Step 2: The balanced equation

CaCl2 + CO2 + H2O → CaCO3 + 2HCl

Step 3: Calculate moles CaCO3 produced

Moles CaCO3 = mass CaCO3 / molar mass CaCO3

Moles CaCO3 = 85.00 grams / 100.09 g/mol

Moles CaCO3 = 0.850 moles

Step 4: Calculate moles CaCl2

For 1 mol CaCl2 we need 1 mol CO2 and 1 mol H2O to produce 1 mol CaCO3 and 2 moles HCl

For 0.850 moles CaCO3 we need 0.850 moles CaCl2

Step 5: Calculate mass CaCl2

Mass CaCl2 = moles CaCl2 * molar mass CaCl2

Mass CaCl2 = 0.850 moles * 110.98 g/mol

Mass CaCl2 = 94.3 grams

We need 94.3 grams of CaCl2

You might be interested in
Why might calcium also be called the calcium of citric acid
Stella [2.4K]
Calcium citrate malate contains the calcium salt of citric acid and malic acid
6 0
2 years ago
In a living organism, what is a tissue
Rus_ich [418]

Answer:

Tissue is a group of cells.

Explanation:

Human body tissue consists of groups of cells with a similar structure working together for a specific function.

Human body tissue is another way of describing how our cells are grouped together in a highly organized manner according to specific structure and function. These groupings of cells form tissues, which then make up organs and various parts of the body. For example, it's easy to see and feel muscle in the body. Muscle is one of the four types of human body tissue. In this lesson, learn more about the types of tissue and how each functions for a different purpose.

Please mark Brainliest! :)

3 0
3 years ago
Read 2 more answers
When balancing a chemical equation, the number of h atoms in 2 ch4 is eight?
Viktor [21]
Yes... that is correct.

CH4 is methane so the coefficent in front of it would double the number of atoms of each element
6 0
3 years ago
What is true of a basic solution at room temperature? it has a ph value below 7. it has a greater concentration of hydroxide com
slega [8]
The true statement about basic solution at room temperature is that it has a greater concentration of hydroxide compared to hydronium ions.
Basic solutions have always pH greater than 7.
Basic solutions have bitter and caustic taste.
Basic solutions are not used as conductors in car batteries, acidic electrolytes are used in car batteries.
7 0
3 years ago
A path that an electric current followos is a
Fed [463]
The flow of electricity is an electric current. The path that an electric currents floes is a circuit.
7 0
2 years ago
Read 2 more answers
Other questions:
  • A compound contains 64.27% carbon, 7.19% hydrogen, and 28.54% oxygen. the molar mass is 168.19 g/mol. what is the molecular form
    8·1 answer
  • When is the small size of gas particles taken into account?
    9·1 answer
  • Which is the correct number of valence electrons in the element sulfur (s)?
    14·2 answers
  • 5. What would be the temperature change if 12.5 g of water absorbed 35 J of heat?
    15·1 answer
  • Drag each label to the correct location on the image.
    13·2 answers
  • Functions of weather​
    7·1 answer
  • In a group 1 analysis, a student obtained a precipitate containing both AgCl and PbCh. Which of the following reagents would ena
    12·1 answer
  • How much heat is absorbed by a 2000 g granite rock as energy from the sun causes its temperature to change from 10°C to 29°C?
    11·1 answer
  • What is the percent enantiomeric excess (ee) of a mixture that has 86% of one enantiomer and 14% of the other
    11·1 answer
  • 1. Calculate the average atomic mass of rubidium. Rubidium has two isotopes, 85Rb and 87Rb. 85Rb has an atomic mass of 84.912 am
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!