3 years ago

Someone please help me i’m stuck

1 answer:

5 0

I thought about writing it for you but then i found this and thought i will give help but at the sometime allow you write the response you self

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Andrews [41]

Answer:

0.978 M

Explanation:

Given data

We can find the molarity of the stock solution of luminol using the following expression.

M = mass of solute / molar mass of solute × liters of solution

M = 13.0 g / 177.16 g/mol × 0.0750 L

M = 0.978 M

3 0

2 years ago

statuscvo [17]

Answer:

$149 depending where you live.

Explanation:

4 0

2 years ago

netineya [11]

<span>D. frequency is the answer</span>

4 0

2 years ago

olganol [36]

density = mass/volume

volume= mass/density

Yes, you're correct.

5 0

2 years ago

3241004551 [841]

Density ρ= $\frac{m}{v}$

= $\frac{2.56 kg}{0.820 L} \\=3.121kg/L$

8 0

2 years ago