Answer:
Prokaryotic cells don't have a nucleus, so its false.
Answer:
The empirical formula of compound is C₂H₆O.
Explanation:
Given data:
Mass of carbon = 12 g
Mass of hydrogen = 3 g
Mass of oxygen = 8 g
Empirical formula of compound = ?
Solution:
First of all we will calculate the gram atom of each elements.
no of gram atom of carbon = 12 g / 12 g/mol = 1 g atoms
no of gram atom of hydrogen = 3 g / 1 g/mol = 3 g atoms
no of gram atom of oxygen = 8 g / 16 g/mol = 0.5 g atoms
Now we will calculate the atomic ratio by dividing the gram atoms with the 0.5 because it is the smallest number among these three.
C:H:O = 1/0.5 : 3/0.5 : 0.5/0.5
C:H:O = 2 : 6 : 1
The empirical formula of compound will be C₂H₆O
Answer:
There are 26 valence electrons in SOF₂.
Explanation:
Valence electrons are calculated by adding the valence electrons present in valence shell of each element present in SOF₂. So,
# of Valence e⁻s in S = 6
# of Valence e⁻s in O = 6
# of Valence e⁻s in F = 7
# of Valence e⁻s in F = 7
Now, add all valence electrons,
= 6 + 6 + 7 + 7
= 26 Valence Electrons
Answer:
Explanation:
Relation of with is given by the formula:
where,
= equilibrium constant in terms of partial pressure
= equilibrium constant in terms of concentration
R = Gas constant
T = temperature
= change in number of moles of gas particles =
when = 0
a)
= change in number of moles of gas particles =
b)
= change in number of moles of gas particles =
c)
= change in number of moles of gas particles =
d)
= change in number of moles of gas particles =
Thus for reaction , , as = 0
Answer:
C. Sodium hydrogen carbonate
Explanation:
IUPAC : International Union of Pure and Applied Chemistry.
According to IUPAC rules:
Baking soda is a salt formed by a cation(Positive charge) and an anion(anion).
: Is made from cation and one anion
IUPAC naming starts from the cation name .(Here the cation name is : Sodium .) The cation is named same as the name of element.
Anion is named after the cation .Here is named as Hydrogen carbonate.(anion name ends with -ate ,-ite -ide etc).
So, name of the compound is Sodium hydrogen carbonate
Note: d.Sodium hydrogen monocarbon trioxide, can't be correct answer, because it show the existence of anions of oxygen()and not )