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
Oksi-84 [34.3K]
3 years ago
6

Why we add PH10 When we determine the zn ion​

Chemistry
1 answer:
KIM [24]3 years ago
8 0

Answer:

to make it basic from acidic

You might be interested in
An atom with the same number of protons and electrons has charge of
xz_007 [3.2K]

Answer:

Explanation:

0

All the charges of the protons are cancelled out by all the charges on the electrons.

6 0
3 years ago
How can you distinguish between a solution, colloid, and suspension?
RSB [31]

Answer:

solution is clear solution while colloidal is between the solution and suspension. And in suspension particles are suspended.

Explanation:

In solution light can be passed without any scattering of light from solute particles while suspension is cloudy and having larger particle size than colloids, if suspension stands for a while particles will settle down easily.

In colloids light  will scattered and dispersed by reflecting with large particles.

3 0
3 years ago
Lactic acid results from which of the following?
vazorg [7]

Explanation:

Lactic acid is formed during the breakdown of glucose. This is sometimes called "blood sugar."

7 0
3 years ago
Read 2 more answers
Which of the following would remain a liquid longer as temperature continues to drop?
viktelen [127]

I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.

3 0
3 years ago
Read 2 more answers
When 16.0 g of an unknown compound (a nonelectrolyte) are dis solved in exactly 800. g of water, the solution has a freezing poi
dexar [7]

Answer:

A. 266g/mol

Explanation:

A colligative property of matter is freezing point depression. The formula is:

ΔT = i×Kf×m <em>(1)</em>

Where:

ΔT is change in temperature (0°C - -0,14°C = 0,14°C)i is Van't Hoff factor (1 for a nonelectrolyte dissolved in water), kf is freezing point molar constant of solvent (1,86°Cm⁻¹) and m is molality of the solution (moles of solute per kg of solution). The mass of the solution is 816,0g

Replacing in (1):

0,14°C = 1×1,86°Cm⁻¹× mol Solute / 0,816kg

<em>0,0614 = mol of solute</em>.

As molar mass is defined as grams per mole of substance and the compound weights 16,0g:

16,0g / 0,0614 mol = 261 g/mol ≈ <em>A. 266g/mol</em>

I hope it helps!

3 0
3 years ago
Other questions:
  • Here is the discharge reaction for an alkaline battery: zn(s) + 2mno2(s) + h2o(l)\longrightarrow⟶⟶zn(oh)2(s) + mn2o3(s) which sp
    7·2 answers
  • An undergraduate weighed out 20grams of sodium hydroxide pellets. If Na =23, O = 16 andH = 1, What is the mole of this sodium hy
    7·1 answer
  • What is the difference between speed, velocity, and acceleration
    14·2 answers
  • What is the total number of electron pairs shared between the two atoms in an 02 molecule
    13·1 answer
  • Sodium hydroxide (a base) reacts with hydrochloric acid. After the reaction is complete, a pH indicator is added to the solution
    15·1 answer
  • What is the empirical formula of a compound composed of 3.25% hydrogen ( H ), 19.36% carbon ( C ), and 77.39% oxygen ( O ) by ma
    6·1 answer
  • What is the pressure of 0.5 mol of nitrogen gas in a 5 L container at 203 K
    9·1 answer
  • Why is water important to cells
    5·2 answers
  • Why are 99.9% of metals (pure) way more expensive than 95% metals?
    15·2 answers
  • Can a combustion reaction have CO2 and H2O as reactants?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!