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gizmo_the_mogwai [7]
3 years ago
13

Advantages and disadvantages of Law of Triad :

Chemistry
1 answer:
il63 [147K]3 years ago
7 0

Answer:

Dobereiner could identify only three triads. He was not able to prepare triads of all the known elements. All the known elements could not be arranged in the form of triads. For very low mass or for very high mass elements, the law was not holding good.

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Calculate the percent error in calculating the pH of a 0.040 M HCl solution that is also 0.010 M in HNO3 using ionic strength an
ankoles [38]

Answer:

O2+ e-→O2-εo’= -0.040 V+ 0.046 V= -0.925 Vb. Q = 1/0.02 = 50,the number of electrons transferred νe= 1, ε’=εo’-(0.0591V/νe)*logQ = -0.971V –0.0591V*log50 = -1.071 V

Explanation:

7 0
3 years ago
How much energy is required to heat 40g of water from -7 degrees Celsius to 108 degrees Celsius (Lf= 335,000J/Kg for ice)
solniwko [45]
The   energy  required  to heat  40g  of water  from -7 c  to 108 c is
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     calculation

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6 0
3 years ago
The correct formula for sodium oxide is?
kifflom [539]
Its Na20
the formula for sodium oxide
4 0
3 years ago
Butane, ch3-ch2-ch2-ch3, is a hydrocarbon fuel used in lighters. how many moles of molecules are there in a 350. gram sample of
Galina-37 [17]
<span>6.03 moles.



1 molecule of butane contains 4 carbon atoms and ten hydrogen atoms.

The molar mass is 4 times the atomic mass of carbon, 12 g/mol, plus 10 times the atomic weight of hydrogen, 1 g/mol.

Molar mass = 4 * 12 g/mol + 10 * 1 g/mol = 58 g/mol.

This means that 1 mole of butane has a mass of 58 g.

To figure out how many moles are in a sample of butane, divide the mass of sample in grams by 58 grams

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3 0
3 years ago
Help, 8th grade Science
valentinak56 [21]

Answer:

Control container

Explanation:

5 0
3 years ago
Read 2 more answers
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