Convert 50g of calcium carbonate, CaCO3, into moles

Answers

Answer 1

Answer: Answer:
Moles = 0.5 mol

Solution:

Moles is related to mass as follow,

Moles = Mass / M.mass ----- (1)

Where;
Mass = 50 g

M.mass = Ca (40) + C (12) + O₃ (16)₃ = 100 g/mol

Putting values in equation 1,

Moles = 50 g ÷ 100 g.mol⁻¹

Moles = 0.5 mol

Related Questions

Abigail obtained 36.6 grams of calcium carbonate after performing a reaction. From her calculations, she knew she should have obtained 44.1 grams. What was her percent yield
Complete and balance the equation for the following acid-base neutralization reaction. If water is used as a solvent, write the reactants and products as aqueous ions. In some cases, there may be more than one correct answer, depending on the amount of reactants used.(a)Mg(OH)2 + HClO4?(b)SO3 + H2O? (Assume an excess of water and that the product dissolves)(c) SrO + H2SO4?
How much time would it take for 9000 atoms of nobellium-253 (half-life is 97 s) to decay to 2250 atoms?Please help ASAP!!! :(
50.00 mL of 0.10 M HNO 2 (nitrous acid, K a = 4.5 × 10 −4) is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH solution is added, the pH in the titration flask will be a. 2.17 b. 3.35 c. 2.41 d. 1.48 e. 7.00
Which of the following statements best explains why the atomic radius increases from top to bottom of the periodic table? A. The electronegativity decreases from top to bottom of the periodic table, so the atoms near the bottom have an increased capacity for electrons. B. For the atoms lower in the periodic table, there is more difference in charge between the electrons and the protons, which allows electrons to orbit farther from nucleus. C. The ionization energy decreases from top to bottom of the periodic table, so the atoms near the bottom have an increased capacity for electrons. D. For the atoms lower in the periodic table, the valence electrons are in higher energy levels and farther from the nucleus.

Could someone pls help me :)

Answers

liquid 1 and 2 have the same color and mass so the answer would be liquid 1 and 2

Explanation:

hope this is helpful

What factors govern the position of an IR absorption peak? Select one or more correct answers.(A) strength of the bond
(B) effect of a magnetic field on nucleus spin
(C) masses of the atoms involved in the bond
(D) the type of vibration being observed

Answers

Answer:

The factors that govern the position of an IR absorption peak are:

(A) strength of the bond

(C) masses of the atoms involved in the bond

(D) the type of vibration being observed

Explanation:

In infrared spectroscopy the molecules absorb the frequencies that are characteristic of their structure. These absorptions occur at resonance frequencies, that is, the frequency of the absorbed radiation coincides with the frequency of vibration. The energies are affected by the shape of molecular potential energy surfaces, the masses of atoms and the associated vibronic coupling. The resonance frequencies are also related to the strength of the bond and the mass of the atoms at each end of it. Therefore, the frequency of vibrations is associated with a particular normal movement mode and a particular type of link.

Write a balanced chemical equation for the standard formation reaction of gaseous dinitrogen tetroxide

Answers

Answer:

$N_2(g)+2O_2(g)\rightarrow N_2O_4(g)$

Explanation:

Hello,

In this case, considering the required product which is dinitrogen tetroxide whose molecular formula is N₂O₄, by considering its formation reaction which is starting by both gaseous nitrogen and oxygen as shown below:

$N_2(g)+O_2(g)\rightarrow N_2O_4(g)$

Nevertheless, it should be balance since four oxygen atoms are present at the right side, thus, we obtain:

$N_2(g)+2O_2(g)\rightarrow N_2O_4(g)$

Best regards.

Which statement is true about the cell membrane? It allows an unlimited amount of water to enter. It stops waste substances from passing through. It is not selective about which gases enter or leave the cell. It is selective about which substances enter or leave the cell.

Answers

Answer:

It is selective about which substances enter or leave the cell.

Explanation:

Also srry for spamming u all the time.

UwU hope this helps tho

Answer:

It is selective about which substances enter or leave the cell

Explanation:

I have learned this already

What is the correct noble gas configuration for oxygen?

Answers

Oxygen (O) is a chemical element which you're surely familiar with since you breathe it every second of your life. The noble gas configuration is [He] 2s2 2p4. This shows that there is a total of 8 electrons (two in the 1s orbital, another 2 in the 2s orbital and the rest in the 2p orbital)

Let me know if you need anything else.

- Dotz :)

Find the density of an object that has a volume of 2.3 x 10^2 and a mass of
3.5 x 10^3. *

Answers

Answer:

$(250)/(23)$

Step-by-step explanation:

$10^(2) = 100$
2.3 × 100 = 230
$10^(3) = 1000$
3.5 × 1000 = 3500
$D = (m)/(v)$
$D = (3500)/(230)$
3500 ÷ 230 = $(250)/(23)$

I hope this helps!

Other Questions

What is an acronym for the rainbow colors?I just want to know if anybody else knows this.

What data should be plotted to show that experimental concentration data fits a first-order reaction? A) 1/[reactant] vs. time B) [reactant) vs. time C) In[reactant] vs. time D) In(k) vs. 1/1

Balance the following half reaction in basic conditions. Then, indicate the coefficients for H2O and OH– for the balanced half reaction, and which side they appear on. Si (s) + Mg(OH)2 (s) → Mg (s) + SiO32- (aq)

Nickel (II) ions form a complex ion in the presence of ammonia with a formation constant (Kf) of 2.0×10^8:Ni2+ + 6NH3 ⇌ [Ni(NH3)6]2+ Calculate the molar solubility of NiS in 3.1 M NH3. g