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Inga [223]
3 years ago
12

An aqueous solution at 25.0°C contains [H+] = 0.075 M. What is the pH of the solution?

Chemistry
1 answer:
olasank [31]3 years ago
7 0

Answer:

1.131

Explanation:

pH=-logH^+

H^+=0.074

pH=-log 0.074

pH=1.131

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Can alpha radiation affect electronics
Tom [10]

Answer:

Radiation effects on electrical equipment depend on the equipment and on the type of ionizing radiation to which it is exposed.

 

First, beta radiation has little, if any, effect on electrical equipment because this type of ionizing radiation is easily shielded. The equipment housing and the construction of the parts within the housing will protect the equipment from beta-radiation (high-energy electrons) exposure.

 

Gamma radiation is penetrating and can affect most electrical equipment. Simple equipment (like motors, switches, incandescent lights, wiring, and solenoids) is very radiation resistant and may never show any radiation effects, even after a very large radiation exposure. Diodes and computer chips (electronics) are much more sensitive to gamma radiation. To give you a comparison of effects, it takes a radiation dose of about 5 Sv to cause death to most people. Diodes and computer chips will show very little functional detriment up to about 50 to 100 Sv. Also, some electronics can be "hardened" (made to be not affected as much by larger gamma radiation doses) by providing shielding or by selecting radiation-resistant materials.

 

Some electronics do exhibit a recovery after being exposed to gamma radiation, after the radiation is stopped. But the recovery is hardly ever back to 100% functionality. Also, if the electronics are exposed to gamma radiation while unpowered, the gamma radiation effects are less.

 

Ionizing radiation breaks down the materials within the electrical equipment. For example, when wiring is exposed to gamma rays, no change is noticed until the wiring is flexed or bent. The wire's insulation becomes brittle and will break and may cause shorts in the equipment. The effect on diodes and computer chips is a bit more complex. The gamma rays disrupt the crystalline nature of the inside of the electronic component. Its function is degraded and then fails as more gamma radiation exposure is received by the electronic component.

 

Gamma rays do not affect the signals within the device or the signals received by the device. Nonionizing radiation (like radio signals, microwaves, and electromagnetic pulses) DO mess with the signals within and received by the device. I put a cheap electronic game in my microwave oven at home. It arced and sparked and was totally ruined. I didn’t waste any more of my time playing that game.

Hope this helps.

Explanation:

MARK ME AS BARINIEST PLS

5 0
3 years ago
Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 5 to n = 3
tankabanditka [31]
<span>ΔE = -RH [(1/nf2) - (1/ni2)]ΔE = -2.18 x10-18 J [(1/32) - (1/52)]ΔE = -1.55 x10-19 JE = hc/λλ = hc/Eλ = [(6.63 x10-34 J.s.) x (3.00 x1017 nm/s)] /(1.55 x10-19 J)λ = 1280nm</span>
5 0
3 years ago
Which of the following is a salt? <br> C6H12O6<br><br> O2<br><br> C2H2<br> K C l
irina [24]

Answer:

it's kcl

Explanation:

the kcl should be salt

5 0
2 years ago
TRUE/FALSE. the profit-maximizing rule leaves room for cases where it is both possible and reasonable for a firm to operate at a
SCORPION-xisa [38]

The statement was false as it mentioned, the profit-maximizing rule leaves room for cases where it is both possible and reasonable for a firm to operate at a loss over the long run

What is profit-maximizing rule ?

According to the Profit Maximization Rule, if a corporation want to maximise its profits, it must select the level of output where Marginal Cost (MC) equals Marginal Revenue (MR) and the Marginal Cost curve is increasing. To put it another way, it must generate at a level where MC = MR.

The profit maximization rule formula is as follows:

MC = MR

The marginal cost is the cost increase caused by manufacturing one extra unit of an item.

The difference in total revenue as a result of altering the rate of sales by one unit is referred to as marginal revenue. The slope of Total Revenue is also known as Marginal Revenue.

Total Revenue - Total Costs = Profit

Profit maximisation happens when there is a considerable gap or disparity between total revenue and total cost.

so the given statement the profit-maximizing rule leaves room for cases where it is both possible and reasonable for a firm to operate at a loss over the long run. was a false statement.

To learn more about profit-maximizing rule  follow the given link: brainly.com/question/7586794

#SPJ4

5 0
1 year ago
Name 4 invasive species and describe their effect on ecosystem.
Grace [21]

Spotted Lantern: Destroying our trees

Fishers: Brought to lower numbers of certain species, but have dramatically lowered other species.

Zebra Mussels: Clog pipes

Emerald Ash Borer: Ruins ash trees that provide us with durable wood.

6 0
3 years ago
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