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3 years ago

If an unknow metal has the mass of 40g and volume of 75ml, what is the density of the metal?

Chemistry

1 answer:

Snowcat [4.5K]3 years ago

6 0

Answer:

d = 0.53 g/mL

Explanation:

Given that,

Mass of an unknown metal = 40 g

The volume of the metal = 75 mL

We need to find the density of the metal. We know that,

Density = mass/ volume

$d=\dfrac{40\ g}{75\ mL}\\\\d=0.53\ g/mL$

So, the density of the metal is 0.53 g/mL.

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tino4ka555 [31]

Answer:

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3 years ago

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svlad2 [7]

Answer:

Explanation:

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3 years ago

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lutik1710 [3]

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Explanation:

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3 years ago

How many grams of pure naoh must be used to prepare 10.0 l of a solution that has a ph of 13? __________g?

padilas [110]

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Step 1. Calculate the pOH of the solution

pOH = 14.00 – pH = 14.00 -13 = 1

Step 2. Calculate the concentration of NaOH

[NaOH] = [OH^(-)] = 10^(-pOH) mol/L = 10^(-1) mol/L = 0.1 mol/L

Step 3. Calculate the moles of NaOH

Moles of NaOH = 10.0 L solution × (0.1 mol NaOH/1 L solution) = 1 mol NaOH

Step 4. Calculate the mass of NaOH

Mass of NaOH = 1 mol NaOH × (40.00 g NaOH/1 mol NaOH) = 40 g NaOH

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4 years ago