Based on Table G, determine the total mass of NH3 that must be dissolved in 200. grams of water to produce a saturated solution at 20.°C.
Answers
Its 112
Explanation:
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Gas-to-liquid synfuel production can produce diesel, naptha and paraffin. The formation of these products usually involves _____. the Fischer-Tropsch Process the removal of carbon atoms from the fuel adding highly acidic substances such as hydrochloric acid the production of radioactive waste that must be stored in protective barrels
Answers
The oxidation number is determined by the respective electronegativity of the atoms involved. A more electronegative element will always have a negative oxidation number. In the compound, all the oxidation numbers must add up to 0. Oxidation numbers of elements can vary between compunds.
A few rules to follow about oxidation numbers
Fluorine will always be -1
Oxygen will be -2 unless in a compound with fluorine
Hydrogen is usually +1
A few examples
HF (Hydrogen flouride) Oxy number of H= +1 and F = -1
H2O Oxy number of H = +1 and O= -2
NH3 Oxy of H= +1 and since there are 3 Hydrogens each with an oxidation number of +1 N must have an oxy number of -3 for the overall oxidation number of the compound to be 0.
H2SO4 Oxy number of H= +1 O=-2 When adding up the hydrogen and oxygen oxidation numbers ( 1 + 1 -2 - 2 -2 -2) we are left with -6 thus S must have an oxidation number of +6 for the overall number to be 0.
NO2 Oxidation number of O= -2 there are 2 oxygens leaving us with -4 thus N must have an Oxy number of +4 for the overall number to be 0.
Answers
I hope this helps and if anything is unclear feel free to ask about it in the comments.
Answers
Answer: (2) structural formula
Explanation:-
The compounds having similar molecular formula but different arrangement of atoms or groups in space are called isomers and the phenomenon is called as isomerism.
1-bromopropane and 2-bromopropane are position isomers which have same molecular formula but different position of the functional groups attached.
The chemical formula for both the compounds 1-bromopropane and 2-bromopropane is . Thus both have same molecular formula , 3 carbon atoms per molecule and 1 bromine atom per molecule.
B) 40.00
C) 160.0
D) 6,400
Answers
160.0 g NaOh ( 1 mol NaOH / 40.0 g NaOH ) = 4.000 mol NaOH
atom?
A.
Electrons are in the nucleus and have a
negative charge
B. Electrons are in the nucleus and have a
positive charge
C. Electrons are outside the nucleus and
have a negative charge
D. Electrons are outside the nucleus and
have a positive charge
Answers
Option C - Electrons are outside the nucleus and and have a negative charge is the correct alternative.
We have electrons.
We have to determine their role inside the atom.
What are Electrons ?
An electron is one of the subatomic particles within an atom. It is negatively charged particle whose magnitude is 1.6 x 10⁻¹⁹ C.
According to the question -
The role of electrons inside the atom is as follows -
- Electrons revolve around the nucleus.
- They carry a negative - charge of -1.6 x 10⁻¹⁹ C.
Hence, Option C is the correct alternative.
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b. the energy required to remove an electron from the element in its gaseous state
c. the energy released by the element in forming an ionic bond
d. the energy released by the element upon receiving an additional electron
e. none of the above
Answers
The ionization energy is energy required to remove an electron from element in it's gaseous state.
What is ionization energy?
Ionization energy is defined as the minimum energy required to remove an electron from its valence shell of an isolated gaseous atom,positive ion or molecule.Ionization energy is positive for neutral atoms from which it can be concluded that ionization is an endothermic process.
Closer are the valence electrons to nucleus ,higher is the ionization energy.It is usually expressed in electron volts or joules.Ionization energy increases from left to right in a period as more energy is required to remove electrons with small atomic size.
Ionization energy decreases down the group as atomic size increases due to which electrons are easily lost from the valence shell.
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