The number of grams present in 0.54 moles of calcium is; 22 g
We are given;
Number of moles; n = 0.54 moles
Now, Molar mass of calcium is;
M = 40.1 g
Formula for number of moles is;
n = m/M
Where;
n is number of moles
m is mass in grams
M is molar mass
Thus;
0.54 = m/40.1
m = 40.1 × 0.54
m = 21.654 g
Approximately m = 22 g
Read more at; brainly.com/question/5397233
Answer:
-5 ,0,5
Step-by-step explanation:
x^2 ≤ 25
Take the square root of each side
sqrt(x^2) ≤ sqrt(25)
sqrt (25) is +5 and -5
x ≤ 5 and x ≥ -5
-5 ≤x ≤ 5
The choices are -5 ,0,5
Answer:
2, 1, 1, 0
Step-by-step explanation:
converse-2 inverse-1 bio-1 cont-0
Answer:
Step-by-step explanation:
Red marbles = 33
Blue marbles = 72
Probability of selecting red or blue marbles:
The correct answer is :False
