The molarity of KCl solution made by diluting 75.0 ml of a 0.200M solution to a final volume of 100ml is calculated using the below formula
M1V1=M2V2
M1=0.200 M
V1= 75.0 Ml
V2= 100 ml
M2=?
by making M2 the formula of the subject M2 =M1V1/V2
=75.0 ml x0.200 M/100 Ml = 0.15 M
Answer:
NH3 and HCl
Explanation:
NH3 and HCl are acids because of their hydrogen ions. NHO3 and NaOH are bases (you can tell because they have an OH). I don't believe SCl2 is an acid or a base
False, a physical change means that the property of matter will change size, shape, color, or density. These are all examples of physical change.
A phospholipid has a charged head and an uncharged tail.
Answer:
4 × 10⁶ sec
Explanation:
The distance between the earth and the moon = 384,400 km
The speed of the peregrine falcon = 350 km/hr
Considering,
Distance = Speed × Time
So,
Time = Distance / Speed = 384,400 km / 350 km/hr = 1098.28571 hrs
Also,
1 hr = 3600 sec
So,
1098.28571 hrs = 3600 × 1098.28571 s ≅ 4 × 10⁶ sec
<u>Thus time taken by peregrine falcon if falcon fly to the moon = 4 × 10⁶ sec </u>
