alcohol, ethanol (ethyl alcohol), or n-propanol. Hand sanitizer that contains at least 60% alcohol should
be used. The molecular formula of ethyl alcohol is CH3CH2OH
Answer the following questions, based on the above paragraph,
1. When using an alcohol-based hand sanitizer, which one of the following should not be followed?
(01 mark)
(a) Apply product to the palm of one hand.
(b) Rub hands together.
(c) Rub the product over all surfaces of hands and fingers until hands are dry.
(d) Going near to gas burner or any burning object during or after applying hand sanitizer.
2. The number of molecules of ethanol present in 92 g of ethanol is (01 mark)
(a) 6.022 x 1023
(b) 12.044 x 1023
(c) 18.066 x 1023
(d) 24.088 x 1023
Answers
Answer:
he best way to prevent the spread of infections and decrease the risk of getting sick is by washing your hands with plain soap and water, advises the Centers for Disease Control and Prevention (CDC). Washing hands often with soap and water for at least 20 seconds is essential, especially after going to the bathroom; before eating; and after coughing, sneezing, or blowing one’s nose. If soap and water are not available, CDC recommends consumers use an alcohol-based hand sanitizer that contains at least 60% alcohol.
Q. Should I be using antibacterial soap to wash my hands?
A. The best way to prevent the spread of infections and decrease the risk of getting sick is by washing your hands with plain soap and water, advises the Centers for Disease Control and Prevention (CDC). Washing hands often with soap and water for at least 20 seconds is essential, especially after going to the bathroom; before eating; and after coughing, sneezing, or blowing one’s nose. There is currently no evidence that consumer antiseptic wash products (also known as antibacterial soaps) are any more effective at preventing illness than washing with plain soap and water. In fact, some data suggests that antibacterial ingredients could do more harm than good in the long-term and more research is needed.
For additional information, see Topical Antiseptic Products: Hand Sanitizers and Antibacterial Soaps.
Q. Where can I buy hand sanitizer? If I can’t find it in the store, can I make my own?
A. Many retail stores and pharmacies sell hand sanitizers. However, we understand that many stores have run out of hand sanitizers and they may be difficult to find. To help increase the availability of hand sanitizers, FDA has issued guidance for the temporary preparation of alcohol-based hand sanitizers by some companies and pharmacies during the public health emergency posed by COVID-19. See Temporary Policy for Preparation of Certain Alcohol-Based Hand Sanitizer Products During the Public Health Emergency (COVID-19) Guidance for Industry1, the Policy for Temporary Compounding of Certain Alcohol-Based Hand Sanitizer Products During the Public Health Emergency2, and Temporary Policy for Manufacture of Alcohol for Incorporation Into Alcohol-Based Hand Sanitizer Products During the Public Health Emergency (COVID-19)3.
- FDA recommends that consumers do not make their own hand sanitizer. If made incorrectly, hand sanitizer can be ineffective, and there have been reports of skin burns from homemade hand sanitizer. The agency lacks verifiable information on the methods being used to prepare hand sanitizer at home and whether they are safe for use on human skin.
Answer:
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