Given that,
Volume, d = 2 mL
Mass, m = 18 grams
We have to find the density. Density of an object is equal to mass per unit volume. It can be given by:
So, the density is 9 g/cm³.
The answer is going to be b. hope that helped
Answer: of unreacted oxygen is left.
Explanation:
To calculate the moles :
According to stoichiometry :
3 moles of = 5 moles of
Thus 0.161 moles of = of
moles of left unreacted = (0.324-0.268) = 0.056
Volume of left unreacted =
Thus of unreacted oxygen is left.
Answer:
1.0 M
Explanation:
Reaction equation;
KOH(aq) + HCl(aq) -----> KCl(aq) + H2O(l)
Concentration of acid CA = ?
Concentration of base CB = 1.0 M
Volume of base VB = 25.60 - 0.50 = 25.1 ml
Volume of acid VB = 25.0 ml
Number of moles of acid NA = 1
Number of moles of base NB =2
CAVA/CBVB =NA/NB
CAVANB = CBVBNA
CA = CBVBNA/VANB
CA = 1 * 25.1 * 1/25.0 *1
CA = 1.0 M
<u>Answer:</u> The correct answer is Option C.
<u>Explanation:</u>
Molar mass is defined as the sum of the atoms present in a compound each multiplied with the number of atoms present in it.
For a compound
The molar mass will be =
So, for the given compound ,
The molar mass will be =
Hence, the correct answer is Option C.