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MAVERICK [17]
2 years ago
6

The two electrodes cr(s)/cr3+(aq) and fe(s)/fe2+(aq) are combined to afford a spontaneous electrochemical reaction. the standard

reduction potentials in v for cr3+(aq) and fe2+(aq) are −0.74 and −0.44, respectively. e° for the cell (in v) is
Chemistry
1 answer:
11Alexandr11 [23.1K]2 years ago
3 0

E = Ecathod- Eanode = -0.44 +0.74 =

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How many neutrons are in titanium
strojnjashka [21]

Titanium has an atomic number of 22, which means it has 22 protons and 22 electrons. About 73.8 percent of natural titanium exists as the isotope Ti-48, which contains 26 neutrons.

4 0
3 years ago
* The cost of table salt and table sugar is Rs 15 per kg.
Vilka [71]

Cost per mole

Table salt : Rs 0.878

Table sugar : Rs 23.63

<h3>Further explanation</h3>

Given

Cost table salt (NaCl) = 15/kg

Cost table sugar(sucrose-C12H22O11) = 69/kg

Required

cost per mole

Solution

mol of 1 kg Table salt(NaCl ,MW= 58.5 g/mol) :

\tt mol=\dfrac{1000~g}{58.5}=17.09~mol=Rs~15\rightarrow 1~mol=Rs~0.878

mol of 1 kg Table sugar(C12H22O11 ,MW= 342 g/mol) :

\tt mol=\dfrac{1000}{342}=2.92~mol=Rs~69\rightarrow 1~mol=Rs~23.63

6 0
2 years ago
The graph shows the changes in the phase of ice when it is heated.
Lesechka [4]

Answer:

100 °C, because it is the boiling point of water.

Explanation:

3 0
2 years ago
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq). Solubility Rules are found here.
wel
<span>In ionic equations, the chemicals are written as the ions which are dissolved in water.
 
AgNO</span>₃<span>(aq) reacts with K</span>₂<span>SO</span>₄<span>(aq) and produces Ag</span>₂<span>SO</span>₄<span>(s) and KNO</span>₃<span>(aq). The balanced complete ionic reaction is
2Ag</span>⁺<span>(aq) + NO</span>₃⁻<span>(aq) +2K</span>⁺<span>(aq) + SO</span>₄²⁻<span>(aq) → Ag</span>₂<span>SO</span>₄<span>(s) +2K</span>⁺<span>(aq) + NO</span>₃⁻<span>(aq)
 
K</span>⁺<span>(aq) and NO</span>₃⁻<span>(aq) present in both sides. Hence, we can cut off them to find net ionic equation. So, net ionic equation is
2Ag⁺(aq) + SO₄</span>²⁻<span>(aq) → Ag₂SO₄(s)</span>
4 0
3 years ago
Homogenous vs heterogenous
Kruka [31]

well yah .... homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions.

while on the other hand ...A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

there are many differences between these two .... but fr a basic info .... i guess what i said would help .....

7 0
3 years ago
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