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
anzhelika [568]
3 years ago
9

How many moles of calcium carbonate-CaCO3 = 4.15 g​

Chemistry
1 answer:
marin [14]3 years ago
3 0

Answer:

Number of moles = 0.042 mol

Explanation:

Given data:

Number of moles = ?

Mass of calcium carbonate = ?

Solution:

Formula:

Number of moles = mass/ molar mass

now we will calculate the molar mass of calcium carbonate.

atomic mass of Ca = 40 amu

atomic mass of C = 12 amu

atomic mass of O = 16 amu

CaCO₃ = 40 + 12+ 3×16

CaCO₃ = 40 + 12+48

CaCO₃ = 100 g/mol

Now we will calculate the number of moles.

Number of moles = 4.15 g / 100 g/mol

Number of moles = 0.042 mol

You might be interested in
Convert 52.09 km/h into m/s.
Fudgin [204]

Answer:

52.09×5/18

14.44 m/s

I hope it's helps you

5 0
3 years ago
Read 2 more answers
What is the role of meteorites in the formation of life?
CaHeK987 [17]

Answer:

Meteorites are consensually considered to be involved in the origin of life on this Planet for several functions and at different levels: (i) as providers of impact energy during their passage through the atmosphere; (ii) as agents of geodynamics, intended both as starters of the Earth’s tectonics and as activators of local hydrothermal systems upon their fall; (iii) as sources of organic materials, at varying levels of limited complexity; and (iv) as catalysts.

Explanation:

4 0
2 years ago
What mass of Ca(NO3)2 is equal to 0.75 moles of this substance?
sattari [20]

Answer:

Ca - 63.546 g

2N - 28.014 g

2O3 - 96 g

Ca(NO3)2 = 187.56 g

187.56 g x 0.75 mol = 140.67 g

Explanation:

Hope this helps

5 0
2 years ago
Has earth always had the same land masses and oceans that it has today? What will happen in the future, will they stay in the sa
icang [17]

Answer: The look of the Earth has changed over time but continents have always been part of the picture. They didn't always look the way they do today, but yes, there have always been continents on Earth. Earth's continents are constantly in motion, and by running the tape ... against southern Europe, while the Atlantic will be a far wider ocean than it is today. ... During the war, Hess had used sonar to map some areas of the ocean floor in detail. ... away from both sides of the mid-ocean ridge at the same rate.

7 0
2 years ago
Read 2 more answers
Energy starts with the steam coming from the tea kettle. This is an example of thermal energy because there is heat. When the st
inn [45]

Answer:

A. Convection B. Conduction

Explanation:

I got it right

8 0
3 years ago
Other questions:
  • Which formulas represent two polar molecules?
    12·1 answer
  • Iodine-131, t1/2 = 8.0 days, is used in the diagnosis and treatment of thyroid gland diseases. If a laboratory sample of iodine-
    8·1 answer
  • When the equation kclo3(s) → kcl(s) + o2(g) is balanced, the coefficient of kclo3 is _____?
    7·1 answer
  • At what temperature (in
    13·2 answers
  • What is true of chlorine?
    8·1 answer
  • A _______ is formed when tectonic plates collide.
    8·1 answer
  • The double covalent bond within unsaturated hydrocarbons_____. are very strong are easily broken are saturated contain oxygen
    7·2 answers
  • What is an example of reactivity?
    15·1 answer
  • Compound A has a partition coefficient (K) of 7 when comparing its solubility in CH2Cl2 to water ( K=11, [solubility of A in g/m
    10·1 answer
  • What is the noble gas electron configuration of bismuth (Bİ)?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!