Answer:
NaCl=500m (1L/1000mL) (9.0 grams /L) (1/2)
Mass NaCl = 2.25 grams
Therefore, 500mL of 1/2 Na solution has 2g of NaCl.
This is a problem on a venn diagram in which the problem determines the number of subscribers that are mutually heeding for channel A and channel B. The equation to be followed is
U = U' + A + B + AandB
Substituting,
8500 = 5140 + 2450+1980- AandB
AandB = 1070 subscribers
Distribute the “-3” to both n&-3 —> -3n+9 then your left with -5 and subtract 9-5
-3n+4
Hope this helps:)
Answer:
2
Step-by-step explanation: