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3 years ago

How does a buffer work

1 answer:

8 0

A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.

Hope this helps

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What is the nuclear equation for decay of Am - 241

adelina 88 [10]

Americium is a radioactive element .

It goes through alpha decay during nuclear reactions .

The nuclear reaction.is given by

$\rm {}^{241}_{95}Am\longrightarrow {}^{237}_{93}Np+{}^4_2\alpha$

Np stands for Nuptunium

Here alpha can be written as He too

3 0

2 years ago

In a double-blind test, the non-control group receives a

Aleksandr [31]

Answer:

Hi There! I'm new so I hope I get This Right! ^^

Explanation:

double blind test. the control group receives a placebo. Why is a placebo used in a double-blind test? so that the effects on people in two different groups can be compared.

happy To Help! ^^

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3 years ago

Where in the lungs does gas exchange occur

Lina20 [59]

Answer: Between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

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3 years ago

Ello! lovely jewels ~ please help me with these questions ฅ^•ﻌ•^ฅ Thanks in advance

QveST [7]

Answer:

<h2>#1</h2><h3>Which process is used for preparation of Sodium Carbonate? </h3>

<h2>Solvey process</h2><h3>is used for the preparation of Sodium Carbonate.</h3>

<h2>#2</h2><h3>How many water of crystallisation are there in Washing Soda?</h3>

<h2>Ten Molecules.</h2><h3>As Washing Soda has formula NaCO3.10H2O . So it has ten molecules of water crystallisation.</h3>

6 0

2 years ago

A 500-ml glass beaker is filled to the brim with ethyl alcohol at a temperature of 5. 00ºc. how much will overflow when its temp

Setler [38]

The volume of ethyl alcohol overflow will be 9.265mL.

To calculate the volume of ethyl alcohol overflow, we will use

∆V=V(á∆T)

Where,

∆V=volume expand

á=volumetric expansion Coefficients =0.00109/°C

V=initial volume =500ml

T'=final temp. =22°C

T=initial temp=5°C

Now,

∆V=500×(0.00109/°C) ×(22-5)

=500×(0.00109) (17)

=9.265ml

Thus, we find that the volume of ethyl alcohol overflow will be 9.265 mL.

learn more about ethyl alcohol:

brainly.com/question/11237501

#SPJ4

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2 years ago