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Vedmedyk [2.9K]
3 years ago
15

A student has to design a titration experiment to determine the concentration of an unknown acid. Answer questions a–f.

Chemistry
1 answer:
Paraphin [41]3 years ago
3 0
29101929228/92992929292
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What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3.
Y_Kistochka [10]
Mass will be 172.8 gram only
7 0
3 years ago
In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the follow
maw [93]

Answer:

22.73s

Explanation:

The reaction is a second order reaction, we know this by observing the unit of the slope.

rate constant = k = 0.056 M-1s-1

the initial concentration of BrO- [A]o = 0.80 M

time = ?

Final concentration [A]t= one-half of 0.80 M = 0.40M

1 / [A]t = kt + 1 / [A]o

1 / 0.40 = 0.056 * t + 1 / 0.80

t = (2.5 - 1.25) / 0.056

t = 22.73s

5 0
3 years ago
Just take this to get points! We are all going through a hard time so I am giving back to make people happy!
Afina-wow [57]

Answer:

thank you

Explanation:

have a blessed day and stay safe :>

4 0
4 years ago
Read 2 more answers
Which phenomenon best explains the miscibility of heptane (CH3CH2CH2CH2CH2CH2CH3) in pentane (CH3CH2CH2CH2CH3)
Nuetrik [128]

The phenomenon that best explains the miscibility of heptane in pentane is that both are non-polar compounds.

<h3>Solubility of compounds</h3>

Solubility is defined as the ability of a solute or substance to dissolve in a given solvent and at a particular temperature.

Heptane is a straight-chain alkane hydrocarbon that contains 7 carbon atoms. It is a non polar solvent.

Pentane is also a straight-chain alkane hydrocarbon that contains 5 carbon atoms. It is also a non- polar solvent.

Both pentane and heptane are non-polar because the atoms in their molecules share electrons equally. They are able to dissolve each other because they are alike.

Learn more about solubility here:

brainly.com/question/23946616

6 0
2 years ago
two objects each have a mass of 5.0 g. one had a density of 2.7 g. and the other has a density of 8.4 g. which object has a larg
gulaghasi [49]

Answer:

The body with 2.7 \frac{g}{(cm^3)} has a larger volume

Explanation:

There is a missespelling in the question. The units of density cannot be g, they usually are \frac{g}{(cm^3)}

In order to answer this question, we need to use the formula of the density of a body:

Density = \frac{Mass}{Volume} = \frac{M}{V}

For body A:

Mass (M) = 5.0 g

Density (D) = 2.7 \frac{g}{(cm^3)}

2.7 \frac{g}{(cm^3)} = 5g * 1/V

V1 = 5g / (2.7 \frac{g}{(cm^3)})

V1 = 1.85 1.85 cm^3

For Body B:

Mass (M) = 5.0 g

Density (D) = 8.4 \frac{g}{(cm^3)}

8.4 \frac{g}{(cm^3)} = 5g * 1/V

V2 = 5g / (8.4 \frac{g}{(cm^3)})

V2 = 0.59 1.85 cm^3

So V1 is bigger than V2

5 0
4 years ago
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