<h2>
Which source would be most reliable for gathering experimental results related to a new compound’s molecular mass : A textbook that lists molecular masses of similar compounds</h2>
Explanation:
Atom:
It is a smallest particle of an element which may as may not have independent existence.
The are very small in size.
Their size is measured in unit nm (nanometer)
1nm – 10⁻⁹ m.
hydrogen atom is smallest of all size is only 10⁻¹⁰ nm
Atoms are represented by symbols (given by berzelius )
Atomic mass of element-
Active atomic mass of atom can’t be measured but relative atomic mass can be known.
I.e. relative atomic mass of an atom of element is defined as average relative mass of atom as compared with atom of 612c taken as 12u.
Atomic mass – no. Of times one atom of he element is heavier then 1/12th of c atom.
Molecule
It is smallest particle of an element or compound which is able to exist independently.
Some element exist as
Diatomic molecuel eq:- O₂
Triatomic molecule eq:- O₃
¬
So,
Atomicity – is no. of atoms in a molecule of an element.
Some more examples:- phosphorous P4 (tetra atomic)
sulphur S8 (poly-atomic)
nitrogen N2 (diatomic)
Molecular mass
It is the mass of molecule that is obtained by adding masses of atoms multiplied with number of atoms of each type .
Answer:
13,2 %.
Explanation:
Overall yield = 0.55 * 0.24
= 0.132
= 13,2 %.
Answer:
Explanation:
Hello there!
In this case, since the percent by mass of a solute in a solution is computed via the following division:
Next, given the mass of HCl and that of water, we plug them in to obtain:
Best regards!
The false statement is that the reaction of 17 g of NH3 will produce 27 g of water. (Option D)
<h3>What is a balanced reaction equation?</h3>
A balanced reaction equation is one in which the number of atoms of each element on the right hand side of the equation is equal to the number of atoms of the same element on the left and side of the reaction equation.
The equation of the reaction is 4 NH3 + 5 O2 → 4 NO + 6 H₂O. The number of atoms of each element on both sides are equal.
Hence, the statement that is false from the reaction equation is; "the reaction of 17 g of NH3 will produce 27 g of water".
Learn more about balanced reaction equation:brainly.com/question/22064431?
#SPJ1