ahmedabudief

Dr. Ahmed Mohamed Abu-Dief

Professor - Professor of Physical and Inorganic Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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2021-02-08 01:20:36 | 117 | INSTRUMENTS & LAB SAFETY: SCI 101
Chemical spill
In the event a chemical spill (such as an acid or base gets into your eyes or on your skin), what should you do? a. Immediately rinse affected area in running water for 15 minutes and get a cold shower if needed b. Report to Public Safety c. Run to get health services Read more

2021-02-07 23:46:07 | 120 | INSTRUMENTS & LAB SAFETY: SCI 101
diluting an acid with water
When diluting an acid with water, always remember to: a. Pour water into acid b. Pour acid into water c. Add both at the same time Read more

2021-02-07 23:42:07 | 118 | INSTRUMENTS & LAB SAFETY: SCI 101
Personal protective equipment2
Is it permissible to have any drink or food in the laboratory? a. Yes b. Never! There is no eating, no drinking, and no smoking permitted in the labs. c. Water only Read more

2021-02-07 23:40:07 | 114 | INSTRUMENTS & LAB SAFETY: SCI 101
Personal protective equipment1
Can open-toed or open-heeled shoes be worn in the lab? a. Yes b. Never c. May be Read more

2021-02-07 23:37:25 | 121 | INSTRUMENTS & LAB SAFETY: SCI 101
Personal protective equipment
When working in the laboratory with chemicals, what personal protective equipment (PPE) should be worn at all time? a. Always wear goggles and lab coats. Gloves should also be worn when needed b. Goggles only c. None of the above Read more

Heat of reaction
There are several kinds of " Heat of reaction " , Write 2 examples of them Read more

Heterogeneous mixture
Hydrated salt ( CaSO4.2H2O ) is named by old methode as Calcium sulfate di hydrate Calcium sulfate di water Calcium sulfate -2- hydrate Calcium sulfate -2- water Read more

General Gas
Which one of the following equations is correct to calculate the moles PR = nVT RT = nPV nTR = PV VT = nRP Read more

Melting point
The melting point temperature range of Pure Urea will be 3oC - 9oC Less than 5oC Liquid under 170 oC Between 120 oC to 135 oC Read more

Expriment 7: molar mass of volatale liquid
Give brief account on determination of molar mass of volatale liquid. Read more