Answer: True the dilution formula is a balanced of mole of the solute..
Explanation:
M1V1 = M2V2
When M1= 1.2M, M2= 0.25M V2= 1.4L and V1= ?
Then V1= 0.25*1.4/1.2
= 0.29
This indicate that 0.29L of the 1.2M NH4Cl will be dilluted to 0.25M in 1.4L of the solution....
The mole number of the solute remain constant
Answer:
0.675
Explanation:
im not compleeatly sure if this is right jope it helps
6. aa and cc ; two lower-case letters indicate the expression of a recessive trait because there is no dominant trait to mask it. (Dominant alleles are capitalized).
7. 1 pp (lower case = recessive)
7.2 Pp, PP; because the white flower is pp, the flower's recessive trait is white. White will only be expressed in the absence of a P, the dominant gene. If a P is in the genotype, it will mask the p allele' causing the flower to be purple.
Moles of K = 32.4/39 = 0.83 mole. According to stoichiometry, 2 moles of K produces 1mole of H2. Therefore, 0.83 mole of K produces = 0.83/2 = 0.415 moles of H2. Therefore number molecules of H2 = moles of H2 x 6.02 x 10^23 = 2.4983 x 10^23 molecules. Hope this helps!