Answer:Martina has 9 pitchers of milk. Each pitcher holds 3 liters. How many liters of milk does Martina have in all?
Explanation:
Martina has 9 pitchers of milk. Each pitcher holds 3 liters. How many liters of milk does Martina have in all?
Answer:
0.11645 moles
Explanation:
moles=n
M is molar mass of substance
m is in grams
n=m/M
So, 7.40/63.546 = 0.11645
0.116(rounded to sig figs)
Answer: A basic solution is defined as a solution which has more hydroxide (OH-) ions than hydronium ions (H+)
Also called axis of abscissas. (in a plane Cartesian coordinate system) the axis, usually horizontal, along which the abscissa is measured and from which the ordinate is measured. (in a three-dimensional Cartesian coordinate system) the axis along which values of x are measured and at which both y and z equal zero.
Answer
20.18
Explanation:
The atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.
We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its percent of the total).
Set up a table for easy calculation
0.9048 × 19.99 u = 18.087 u
0.0027 × 20.99 u = 0.0567 u
0.0925 × 21.99 u = <u>2.0341 u
</u>
TOTAL = 20.18 u