Final answer:
The nurse should give the client 4 tablets of ascorbic acid daily.
Step-by-step explanation:
According to the label on the medication container, the tablets contain 250 mg of ascorbic acid each. The client needs to take 1 g (1000 mg) of ascorbic acid daily. To determine how many tablets the nurse should give, divide the required dosage (1000 mg) by the dosage per tablet (250 mg):
1000 mg / 250 mg = 4 tablets
Therefore, the nurse should give the client 4 tablets of ascorbic acid daily.