H₂SO4:
m=10g
M=98g/mol
n = m / M
n = 10g / 98g/mol = 0,102mol
V=0,1L
Cm = n / V = 0,102mol / 0,1L = 1,02M
Answer:
4.85 x 10⁻¹⁹J
Explanation:
Given parameters:
Wavelength = 410.1nm
Unknown:
The energy of the violet light = ?
Solution:
The energy of a wave can be derived using the expression below;
E =
h is the planck's constant
c is the speed of light
Insert the parameters and solve;
E =
= 4.85 x 10⁻¹⁹J
Answer: Jethro Tull is the father of tillage and he wrote a book horse hoeing husbandry and coined the term weed and zero tillage.
Explanation:
Answer:
See attached picture.
Explanation:
Hello!
In this case, since C2H3Cl is an organic compound we need a central C-C parent chain to which the three hydrogen atoms and one chlorine atom provides the electrons to get all the octets except for H as given on the statement.
In such a way, on the attached picture you can find the required Lewis dot structure without formal charges and with all the unshared electron pairs, considering there is a double bond binding the central carbon atoms in order to compete their octets.
Best regards!
Answer:
72.6 grams
Explanation:
I got this answer through stoichiometry. For every 1 mole of Mg, 2 moles of CuBr are consumed. Because of this, multiply the moles of Mg by 2. Then, convert moles to grams.