Explanation:
Working in laboratory is very dangerous when working with chemicals. It can burn the skin if it falls or if someone comes in contact with it. We should always be alert and be careful while handling chemicals in the laboratory. Safety measure should always be followed like wearing gloves and aprons. While mixing chemicals, always hold the flasks straight right in front of you with the help of a crucible tong or a test tube holder and move straight.
Answer:
Mass = 28.59g
Explanation:
Q = 952J
Change in temperature = 37.0°C
Specific heat capacity = 0.90J/g°C
Mass = ?
Heat Energy (Q) = mc∇T
Q = heat energy
M = mass of substance
C = specific heat capacity of substance
∇T = change in temperature of substance
Q = mc∇T
952 = m × 0.90 × 37
952 = 33.3m
Solve for m
M = 952 / 33.3
M = 28.59g
The mass of aluminium required to use a heat energy of 952J is 28.59g
Explanation:
The number of electron density regions that encircle an atom is calculated by the steric number, which also defines the hybridisation of the central atom. In that scenario, there are six hybridised orbitals in the central atom, leading to a hybridization.
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The correct answer is Charle's law. This law law states that the pressure and absolute temperature of a fixed quantity of gas ate directly proportional under constant volume conditions. It is expressed as V/T = C where is some constant that is constant for all conditions given that pressure is constant.
Answer:
A drug administered at a rate of 13.5 cL/hour has a rate in μL/s of 37.5 μL/s
Explanation:
The given rate at which the blood is administered = 13.5 cL/hour
The rate at which the question asked to be administered = μL/s
The conversion factor between cL and μL is given as follows;
1 cL = 10,000 μL
Which gives;
13.5 cL/hour × 10,000 μL/cL × 1 hour/(60 × 60 seconds) = 37.5 μL/s
Therefore, a drug administered at a rate of 13.5 cL/hour has an administration rate of 37.5 μL/s.