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Alekssandra [29.7K]
3 years ago
6

To calculate the freezing point depression ___ solution's freezing point and the freezing point of it's pure solvent.

Chemistry
1 answer:
murzikaleks [220]3 years ago
8 0
I'm sure that to calculate the freezing point depression <span>subtract</span> solution's freezing point and the freezing point of it's pure solvent. According to the formula.
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12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water
Natali [406]

Answer:

12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water

The equation for this exothermic reaction is shown.

CH 30, - 200, 2H,0

The table shows the bond energies involved in the reaction

bond

bond energy

(kJ/moly

614

413

C-C

CHH

0 0

СО

495

799

O-H

467

What is the total energy change in this reaction?

A-954 kJ/mol

B-1010 kJ/mol

C-1313 kJ/mol

D-1359 kJ/mol

Explanation:

thats all you said

5 0
3 years ago
Determine the resulting pH when 12mL if 0.16M HCl are reacted with 32 mL if 0.24M KOH.
TEA [102]

Answer:

pH = 13.1

Explanation:

Hello there!

In this case, according to the given information, we can set up the following equation:

HCl+KOH\rightarrow KCl+H_2O

Thus, since there is 1:1 mole ratio of HCl to KOH, we can find the reacting moles as follows:

n_{HCl}=0.012L*0.16mol/L=0.00192mol\\\\n_{KOH}=0.032L*0.24mol/L=0.00768mol

Thus, since there are less moles of HCl, we calculate the remaining moles of KOH as follows:

n_{KOH}=0.00768mol-0.00192mol=0.00576mol

And the resulting concentration of KOH and OH ions as this is a strong base:

[KOH]=[OH^-]=\frac{0.00576mol}{0.012L+0.032L}=0.131M

And the resulting pH is:

pH=14+log(0.131)\\\\pH=13.1

Regards!

3 0
3 years ago
Someone answer? You don’t have to answer both if you don’t know.
natima [27]
I’m not sure what the 6 means, but for the first one, the process being shown is photosynthesis that occurs in a plant. The first two compounds are the reactants. The CO2 is carbon dioxide, and the H2O is water. When these two reactants are put together with some sunlight, they create the products. The C6H12O6 is glucose, and the O2 is oxygen.
4 0
3 years ago
Identify the geometry of the complex ion if the hybridization is d2sp3. linear square planar octahedral trigonal planar tetrahed
Leona [35]
Octahedral   is  the  geometry  of the   complex   ion   which   has  d2sp3   hybridization.

 The  octahedral   has  eight   faces   hence  the  prefix  octa.    Octahedral  molecular   geometry   describe  the  shape  of  compound  with  six  atom   or  groups  of atoms  or  ligands  symmetrically  arranged  around  a  central  atom.The  octahedron   is one   of the  platonic  solids.
7 0
4 years ago
When magnesium combines with oxygen, the reaction involves
nikdorinn [45]

Answer:

The correct answer is option c. transfer of electrons from Mg to O.

Explanation:

Hello!

Let's solve this!

When Magnesium (Mg) reacts with oxygen (O), magnesium oxide is formed.

This reaction is spontaneous and occurs with oxidation number +2 of magnesium and oxidation number -2 of oxygen. It is an ionic union, so magnesium transfers its electrons to oxygen.

We conclude that the correct answer is option c. transfer of electrons from Mg to O.

7 0
4 years ago
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