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3 years ago

11

initially 10cm^3 of nitrogen and 24cm^3 of hydrogen are mixed in a container. The temperature and pressure remain constant. Calc

ulate the volume of gas that will remain in the container after the reaction is complete

1 answer:

juin [17]3 years ago

6 0

I will upload a file for the explanation

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A buffering solution consists of both strong acids and bases. <br> a. True<br> b. False

artcher [175]

False. A buffering solution consists of a WEAK acid such as CH3COOH, C5H5N, or ammonia. <span>A buffering solution resists pH change upon the addition of an acidic or basic components. It can neutralize little amounts of added acid or base, thus maintaining the pH of the solution relatively stable. The correct answer is letter "B. false"</span>

4 0

4 years ago

Using a spectrophotometer, and a cuvette with a path length of 1 cm you measure the absorbance (A275) of Guanosine to be 0.70. C

Anton [14]

Answer : The concentration of guanosine in your sample is, $8.33\times 10^{-5}M$

Explanation :

Using Beer-Lambert's law :

$A=\epsilon \times C\times l$

where,

A = absorbance of solution = 0.70

C = concentration of solution = ?

l = path length = 1.00 cm

$\epsilon$ = molar absorptivity coefficient guanosine = $8400M^{-1}cm^{-1}$

Now put all the given values in the above formula, we get:

$0.70=8400M^{-1}cm^{-1}\times C\times 1.00cm$

$C=8.33\times 10^{-5}M$

Thus, the concentration of guanosine in your sample is, $8.33\times 10^{-5}M$

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3 years ago

An acid solution contains more... ions than... ions.

spayn [35]

Answer: An acid contains more hydrogen ions than hydroxide ions.

Explanation:

An acid is defined as the chemical compound which has a high concentration of hydrogen ions. They are considered as proton donors and they act as proton $(H^+)$ donors when they have high concentration of hydrogen ions.

A base is defined as a chemical substance which has high concentration of hydroxide ions. They are considered as proton acceptors and they act as proton $(H^+)$ acceptors when they have low concentration of hydrogen ions.

Hence, an acid is contains more hydrogen ions than hydroxide ions.

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3 years ago

Joanna is performing a reaction that generates a moderate amount of hydroxide. To mimic biological conditions (most bodily fluid

Nady [450]

Answer:

As for your question, I know to forget to put the options, specifically that your question is incomplete.

Explanation:

Although it could help you by telling you that always a reaction that seeks to balance the pH, and achieve neutrality ... It is necessary to achieve a concentration of OH equal to that of H +, in this way the hydroxyl and the protons.

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4 years ago

If an atom has 56 protons and 58 neutrons, how many electrons<br> would this atom have?

andrew11 [14]

Because the protons = the electrons so the atom will have 56 electrons.

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3 years ago