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3 years ago

15

During an experiment, a chemistry student finds the concentration of a solid in a liquid by dividing 3.024 g by 0.07 mL. Using s

ignificant digits, what amount should the student record in the lab report

1 answer:

spin [16.1K]3 years ago

4 0

Answer:

40 g/mL

Explanation: i did it and got it right

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3 years ago

Identify the precipitate(s) formed when solutions of na2so4(aq), ba(no3)2(aq), and nh4clo4(aq) are mixed.

Lostsunrise [7]

Answer : BaS $O_{4}$ will be the precipitate which will be formed.

Explanation : When all the three solutions namely; $NaSO_{4} + Ba(NO_{3})_{2} + NH_{4} ClO_{4}$ are mixed together a white precipitate of BaS $O_{4}$ is formed as a product in the solution along with the soluble by product of Ammonium nitrate which is $NH_{4} NO_{3}$

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Direction: To compare and differentiate the animal and plant cell base on the presence and absence of certain organelles.Fill in

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2 years ago

Consider a solution that is 0.05 M HCl. Your goal is to neutralize 1 L of this solution (i.e. bring the pH to 7). You also have

Ilia_Sergeevich [38]

Answer:

The volume of NaOH required is - 0.01 L

Explanation:

At equivalence point ,

Moles of $HCl$ = Moles of NaOH

Considering :-

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

Given that:

$Molarity_{NaOH}=5\ M$

$Volume_{NaOH}=?\ L$

$Volume_{HCl}=1\ L$

$Molarity_{HCl}=0.05\ M$

So,

$Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}$

$0.05\times 1=5\times Volume_{NaOH}$

$Volume_{NaOH}=\frac{0.05\times 1}{5}=0.01\ L$

<u>The volume of NaOH required is - 0.01 L</u>

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4 years ago

What happens when a student/ classmate gets Sulphuric in there eyes?

agasfer [191]

Answer:

don't try this in lab

Explanation:

it can irritate eyes and cause burning
swelling and tearing of eyes
blurred vision and may cause blindness

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2 years ago

Read 2 more answers