Q: What is the percentage by mass of ethylene glycol in a solution containing 120 g of ethylene glycol in 450 g of liquid?

$$\frac{120}{450} \times 100 = 26.7\%$$

Q: If the toxic quantity of ethylene glycol is 1.5 g per 1000 g of body mass, what percentage of ethylene glycol is fatal?

$$\frac{1.5}{1000} \times 100 = 0.15\%$$

Q: A 50-kg person ingests 75 g of ethylene glycol. Does this meet or exceed the toxic threshold? Show your calculation.

$$1.5 \text{ g/kg} \times 50 \text{ kg} = 75 \text{ g}$$; Yes, it meets the toxic threshold.

Q: If a solution contains 120 g of ethylene glycol and 330 g of water, what is the percentage by mass of ethylene glycol in the solution?

$$\frac{120}{120+330} \times 100 = \frac{120}{450} \times 100 = 26.7\%$$

Q: A patient weighing 80 kg has ingested 100 g of ethylene glycol. Has the patient exceeded the toxic threshold? Show your calculation.

$$1.5 \text{ g/kg} \times 80 \text{ kg} = 120 \text{ g}$$; No, the patient has not exceeded the threshold.

Q: If a beverage contains 30 g of ethylene glycol in 120 g of solution, what is the percentage by mass of ethylene glycol?

$$\frac{30}{120} \times 100 = 25\%$$

Question 1

Ethylene glycol is commonly used in which of the following products, making it easy to obtain for potential poisoning cases?

Accepted Answer

Antifreeze and brake fluid

Question 2

Which initial symptoms of ethylene glycol poisoning can make it difficult to detect in victims?

Accepted Answer

Symptoms similar to intoxication

Question 3

A victim ingested 125 g of ethylene glycol. If the toxic amount is 1.5 g/kg of body mass, what is the minimum body mass (in kg) that could survive this dose without reaching the toxic threshold?

Accepted Answer

$$\frac{125}{1.5} = 83.3 kg$$

Question 4

What is the percentage by mass of ethylene glycol in a solution containing 120 g of ethylene glycol in 450 g of liquid?

Accepted Answer

$$\frac{120}{450} 	imes 100 = 26.7\%$$

Question 5

If the toxic quantity of ethylene glycol is 1.5 g per 1000 g of body mass, what percentage of ethylene glycol is fatal?

Accepted Answer

$$\frac{1.5}{1000} 	imes 100 = 0.15\%$$

Question 6

Which organ is most at risk of failure due to ethylene glycol poisoning?

Accepted Answer

Kidneys

Question 7

What medical procedure can be used to remove ethylene glycol from the blood if poisoning is discovered quickly?

Accepted Answer

Hemodialysis

Question 8

A 50-kg person ingests 75 g of ethylene glycol. Does this meet or exceed the toxic threshold? Show your calculation.

Accepted Answer

$$1.5 	ext{ g/kg} 	imes 50 	ext{ kg} = 75 	ext{ g}$$; Yes, it meets the toxic threshold.

Question 9

Which of the following best explains why ethylene glycol poisoning may go unnoticed by the victim?

Accepted Answer

Its symptoms mimic alcohol intoxication

Question 10

In a forensic investigation, which evidence was crucial in convicting the husband for poisoning his wife with ethylene glycol?

Accepted Answer

Fingerprints on the glass and antifreeze container

Question 11

If a solution contains 120 g of ethylene glycol and 330 g of water, what is the percentage by mass of ethylene glycol in the solution?

Accepted Answer

$$\frac{120}{120+330} 	imes 100 = \frac{120}{450} 	imes 100 = 26.7\%$$

Question 12

Which of the following is NOT a property of ethylene glycol as described in the case?

Accepted Answer

It is insoluble in water

Question 13

A patient weighing 80 kg has ingested 100 g of ethylene glycol. Has the patient exceeded the toxic threshold? Show your calculation.

Accepted Answer

$$1.5 	ext{ g/kg} 	imes 80 	ext{ kg} = 120 	ext{ g}$$; No, the patient has not exceeded the threshold.

Question 14

Which of the following best describes the role of hemodialysis in ethylene glycol poisoning?

Accepted Answer

It removes ethylene glycol from the blood

Question 15

If a beverage contains 30 g of ethylene glycol in 120 g of solution, what is the percentage by mass of ethylene glycol?

Accepted Answer

$$\frac{30}{120} 	imes 100 = 25\%$$

Question 16

Which system is NOT directly affected by ethylene glycol poisoning according to the case study?

Accepted Answer

Digestive system

Question 17

A forensic chemist finds a solution with 15 g of ethylene glycol in 100 g of solution. Is this concentration above the fatal percentage threshold? Use the fatal percentage from the case study.

Accepted Answer

$$\frac{15}{100} 	imes 100 = 15\%$$; Yes, it is above the fatal threshold of 0.15\%.

Question 18

Which of the following is a plausible reason why ethylene glycol is sometimes added to alcoholic beverages in poisoning cases?

Accepted Answer

It is clear, sweet-tasting, and odorless, making it difficult to detect

Question 19

If a person weighing 60 kg ingests 90 g of ethylene glycol, has the person reached the toxic threshold? Show your calculation.

Accepted Answer

$$1.5 	ext{ g/kg} 	imes 60 	ext{ kg} = 90 	ext{ g}$$; Yes, the person has reached the toxic threshold.

Ethylene Glycol: Properties, Toxicity, and Clinical Applications

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