Starting with the unbalanced equation for the combustion of ethanol, C2H5OH(l)+O2(g)→CO2(g)+?H2O(l) what coefficient should be p
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Answer:
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Explanation:
Iodine-131
Iodine-131 is both a beta emitter and a gamma emitter.
About 90 % of the energy is β-radiation and 10 % is γ-radiation. Both forms are highly energetic.
The main danger is from ingestion. The iodine concentrates in thyroid gland, where the β-radiation destroys cells up to 2 mm from the tissues that absorbed it.
Both the β- and γ-radiation cause cell mutations that can later become cancerous. Small doses, such as those absorbed from the nuclear disasters in the Ukraine and Japan, can cause cancers years after the original iodine has disappeared.
Plutonium-239
Plutonium-239 is an alpha emitter.
Alpha particles cannot penetrate the skin, so external exposure isn't much of a health risk.
However, they are extremely dangerous when they are inhaled and get inside cells. They travel first to the blood or lymph system and later to the bone marrow and liver, where they cause up to 1000 times more chromosomal damage than beta or gamma rays.
It takes about 20 years for plutonium to be eliminated from the liver around 50 years for from the skeleton, so it has a long time to cause damage.
n = 0.100 moles
At STP (standard temperature pressure), where gas is collected, the temperature is 0°C and the pressure is 1 atm.
The ideal gas equation indicates that
Group of answer choices .The volume occupied by mole of a given gas at a given temperature and pressure is expressed as the gas's molar volume.
The most typical illustration is the molar volume of a gas at STP, which is equal to for
mole of any ideal gas at a temperature of
Kand a pressure of
atm.
Hence, the volume of the gas is .
A unit is stated to have a temperature of absolute zero and an atmospheric pressure of one atmosphere, or
atm, at standard temperature and pressure. Additionally, at STP, a mole of any gas takes up
of space. Keep in mind that this idea only applies to gases.
For experimental measurements to be established under standard conditions that allow for comparisons between various sets of data, standard temperature and pressure must be met.
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