<span>If there are 38 g of CFC, then there will be 120.9135 g of CFCl2 per mol. You will multiply this times the number of moles of Cl (2) for every mole of CFCl2, and then by the number of grams of Cl per mole, which is 35.4532: (38.0 g CF2Cl2) / (120.9135 g CF2Cl2/mol) x (2 mol Cl / 1 mol CF2Cl2) x (35.4532 g Cl/mol) =
22.3 g Cl in CF2Cl2
Next, if there are 38 g of CFC, there will be 137.3861 g of CFCl3 per mole. You will multiply this times the number of moles of Cl (3 this time) for every mole of CFCl3. You will then multiply this by 35.4532 again:
(38.0 g CFCl3) / (137.3681 g CFCl3/mol) x (3 mol Cl / 1 mol CFCl3) x (35.4532 g Cl/mol) =
29.4 g Cl in CFCl3
Continue following these steps until you are able to multiply 1 mole of Cl per 1 mol CF3Cl by 35.4532:
(38.0 g C2F3Cl3) / (187.3756 g C2F3Cl3/mol) x (3 mol Cl / 1 mol C2F3Cl3) x (35.4532 g Cl/mol) =
21.6 g Cl in C2F3Cl3
(38.0 g CF3Cl) / (104.4589 g CF3Cl/mol) x (1 mol Cl / 1 mol CF3Cl) x (35.4532 g Cl/mol) =
12.9 g Cl in CF3Cl</span>
answer: the variable part of an amino acid is the: SIDE CHAIN
Answer:
c) 40 (o), 35 (+), 34 (-)
Explanation:
Let us represent the element with P
Given information about the element:
Charge on P = +1
Mass number of P = 75
We can express the atom as ⁴⁵P¹⁺
The positive charge on the atom denotes that the atom has lost an electron. Electrons are negatively charge elementary particles in an atom. Therefore, the number of protons, positively charged particles are now more. This charge imbalance is what leaves atom P with a charge of +1. The difference between the proton number and number of electrons is just 1 and it represents a loss of an electron. Atoms that are not charged have their proton and electron number to be the same. Those that are negatively charge signifies that an electron has been gained and the number of electrons are greater than those of the protons.
The mass number 75 is the number of protons plus neutrons.
Option C gives the following information:
Neutron = 40
Protons = 35
Electrons = 34
Here Protons > Electrons with a difference of 1+.
Mass number = Protons + Neutrons =35 + 40 = 75
Answer:- 10.6 L.
Solution:- Temperature is not given in this problem so it must be constant and we know that at constant temperature, the volume of the gas is inversely proportional to it's pressure. It is Boyle's law.
The equation for this law is written as:
P stands for pressure and V stands for volume and the subscripts 1 and 2 are representing initial and final values.
Initial pressure is 845 mmHg, initial volume is 4.60 L. Final volume is 368 mmHg and it asks to calculate the final volume.
Let's plug in the values in the equation and solve it for final volume.
divide both sides by 368mmHg:
= 10.6 L
So, the gas is transferred to a container with a volume of 10.6 L.
Answer: C (Sugar's tendency to dissolve in water)