Using your knowledge of m/v = g/mL, you can start by putting that in the equation as:
And you know that the volume is 25 mL. So you could put this into the equation as:
And you also know that the molar mass of KCl is 74.55g (K = 39.1 g/mol and Cl = 35.45 g/mol. Add them together to get 74.55g/mol).
We can then put this in the equation as:
Then, we can mulitply them all together:
And now we know that
there are 0.01 moles of KCl in the sample.
Answer:
PERIODS
Explanation:
As with any grid, the periodic table has rows running left to right, and columns running up and down. The rows are called PERIODS and the columns are called GROUPS.
<span>An infant weighs 7lb at birth should weight- 13 lbs by four months of age.
1.5 lb. x 4 (months) = 6 lbs. + 7 lbs (birthweight) = 13 lbs.</span>
Answer:
D.nose
Explanation:
Logic comes handy here you breathe by your nose
You inhale and outhale there
Hope I helped