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Sophie [7]
4 years ago
13

What is the empirical formula for Hg2(NO3)2

Chemistry
1 answer:
den301095 [7]4 years ago
8 0
<span>Answer: HgNO₃
</span><span />

<span>Explanation:
</span>
<span /><span /><span>
The empirical formula is the formula that shows the ratio of the atoms in its simplest form, this is using the smallest whole numbers.
</span><span />

<span>The empirical formula may or may not be the same molecular formula.
</span><span />

<span>In this case you are given the molecular formula Hg₂(NO₃)₂. Since, the ratio of the atoms of Hg, N, and O is 2: 2: 6, respectively, the same ratio is expressed if you divide by the greatest common factor (GCF).
</span><span>
</span><span>
</span><span>The GCF of 2, 2, and 6 is 2. So, the ratios can be simplified to 1:1:3, meaning 1 mol of Hg, 1 mol of N, and 3 mol of O or HgNO₃.</span>
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Answer:

In the unfolded polypeptide, there are ordered solvation shells of water around the protein

groups. The number of water molecules involved in such ordered shells is reduced when the protein

folds, resulting in higher entropy. Hence, the lower free energy of the native conformation.

Explanation:

4 0
3 years ago
Concentration data is commonly monitored during a reaction to determine the order with respect to a reactant. Consider the types
kirill115 [55]

Answer:

1) first order

2) second order

3) zero order

Explanation:

The curve of a first order reaction shows it to be exponential. In fact for a first order reaction, the concentration at a time t is an exponential function;

[A]t= [Ao] e^-kt

Where

[A]t = concentration at time =t

[Ao]= initial concentration

k= rate constant

t= time

For a second order reaction, the rate of reaction is directly proportional to the concentration of reactants.

For zero order reactions, rate of reaction is independent of concentration hence rate = k(rate constant)

3 0
3 years ago
An atom's central region which is made up of protons and neutrons
fredd [130]
The central cluster of protons and neutrons in an atom is called the atom's nucleus. Because the only other part of an atom to be concerned about is the electron (which has a very small mass compared to protons and neutrons), the nucleus is also comparatively dense, and holds most of the atom's mass.
5 0
3 years ago
How many milliliters of a 0.15--M solution of KOH will be reuired to titrate 40.00mL of a 0.656-M solution of H3PO4?
pychu [463]

<u>Answer:</u> The volume of HBr solution required is 542.8 mL

<u>Explanation:</u>

To calculate the concentration of base, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_3PO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH

We are given:

n_1=3\\M_1=0.656M\\V_1=40mL\\n_2=1\\M_2=0.15M\\V_2=?mL

Putting values in above equation, we get:

3\times 0.656\times 40=1\times 0.15\times V_2\\\\V_2=542.8mL

Hence, the volume of KOH solution required is 542.8 mL

6 0
3 years ago
What is the net ionic equation of the reaction of fecl2 with naoh?
seraphim [82]
<h3><u>Answer;</u></h3>

Fe2+(aq) + 2OH(aq) ----> Fe(OH)2(s)

<h3><u>Explanation;</u></h3>

We first write down the balanced equation for this reaction:

FeCl₂(aq) + 2NaOH(aq) → 2 NaCl(aq) + Fe(OH)₂(s)

This is a precipitation reaction, where two soluble salts are mixed together in solution forms to make a precipitate.

Then,we can now write the ionic equation for this reaction, that is:

Fe²⁺(aq) + 2Cl⁻(aq) + 2 Na⁺(aq) + 2OH⁻ (aq) → 2 Na⁺(aq) + 2Cl⁻(aq) + Fe(OH)₂(s)

Now, we need to cancel the spectator ions, which are ions that are present on both sides in the equation.

So, the equation becomes;

Fe2+(aq) + 2OH(aq) ----> Fe(OH)2(s)

3 0
4 years ago
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