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
Alik [6]
3 years ago
6

1. Addition of which of the following will increase the solubility of CaCO3 in water? Consider the equilibrium process:

Chemistry
1 answer:
kolbaska11 [484]3 years ago
6 0

Answer: HCl

Explanation:

calcium carbonate dissolves in HCl acid producing CO 2 gas. It will not dissolve in pure water. The Ksp for calcium carbonate in water is 3.4 x 10-9 moldm-3 which is very low. What takes place here is actually a chemical reaction:

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + H 2CO 3(aq)

This reaction accounts for the solubility of the Calcium carbonate in HCl and not in pure water.

You might be interested in
What is the mass percent of oxygen in sodium bicarbonate (NaHCO3)?
Alenkasestr [34]
The answer is 57.14%.

First we need to calculate molar mass of <span>NaHCO3. Molar mass is mass of 1 mole of a substance. It is the sum of relative atomic masses, which are masses of atoms of the elements.

Relative atomic mass of Na is 22.99 g
</span><span>Relative atomic mass of H is 1 g
</span><span>Relative atomic mass of C is 12.01 g
</span><span>Relative atomic mass of O is 16 g.
</span>
Molar mass of <span>NaHCO3 is:
22.99 g + 1 g + 12.01 g + 3 </span>· <span>16 g = 84 g

Now, mass of oxygen in </span><span>NaHCO3 is:
3 </span>· 16 g = 48 g

mass percent of oxygen in <span>NaHCO3:
48 g </span>÷ 84 g · 100% = 57.14%

Therefore, <span>the mass percent of oxygen in sodium bicarbonate is 57.14%.</span>
8 0
3 years ago
FIST ONE TO AWNSER GETS BRAINLYIST AND 50 POINTS IF CORRECT HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
grin007 [14]

Answer:

B

Explanation:

Shows actual sacrifice in order to train and be the best.

7 0
3 years ago
Read 2 more answers
Calculate the lattice energy for NaF (s) given the following
san4es73 [151]

Answer: E

Explanation:

The lattice energy is the energy change when one mole of a crystal is formed from its components ions in its gaseous sate

Therefore lattice energy = heat of Sublimation+ ionization energy +electron affinity-(heat of formation)

Therefore lattice Energy =     109 +495 -328 +570.

Lattice energy = --923kjmol-1

3 0
3 years ago
What are hydrogen bonds?
Rom4ik [11]
A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in another
3 0
2 years ago
Read 2 more answers
4. A compact disc has a diameter of 11.8 cm. What is the surface area of the disc in square centimeters? In square meters? [Area
d1i1m1o1n [39]
<span>The surface area is 109.3 square centimeters or 0.01093 square meters. The area formula requires that we use the radius of the disc. We can find the radius by diving the diameter by 2, so radius = 11.8/2 or 5.9 cm. We can use 3.14 as an approximation for π. The surface area is 3.14 * (5.9*5.9). Since the diameter is given in cm, the surface area units are in square centimeters. To convert to meters, divide any measurement in centimeters by 100, but we need to convert to "square" meters, so we need to divide our square centimeters by 100 * 100, or by 10,000. Dividing 109.3 by 10,000 results in 0.01093 square "meters".</span>
8 0
3 years ago
Other questions:
  • What contribution did Niels Bohr make to atomic theory?
    8·1 answer
  • Which equation was used by Albert Einstein to explain the photoelectric effect? [E = energy, h = Planck’s constant, and v = freq
    9·1 answer
  • List the qualities of the atmosphere that makes it safe to live on this planet
    8·1 answer
  • What properties of matter are intensive independent of their size
    6·1 answer
  • Given the reaction: Ca + 2H2O → Ca(OH)2 + H2 What is the total number of moles of Ca needed to react completely with 4.0 moles o
    15·2 answers
  • Bonus question #2: Unknown element, Element X, exists in nature as two isotopes:
    8·1 answer
  • How many total "elements" are in the chemical equation?
    13·1 answer
  • What two factors most affect the pitch of the sounds made by a person's vocal cords? A. the volume and health of the person's lu
    11·1 answer
  • A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and th
    13·1 answer
  • Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. if the system contains platinum, then le
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!