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2 years ago

15

Calculate the density of a substance with a mass of 0.0500g and volume of 6.40mL, round to the correct number of significant num

bers.

1 answer:

lozanna [386]2 years ago

5 0

Density=mass/volume
Mass = 0.0500g
Volume = 6.40mL

0.0500g/6.40mL = 0.0078g/mL

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2 years ago

A gas occupies 2.50 L at 1.5 atm. What will be the volume of this gas if the

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2 What is the gram-formula mass of Ca(OH)2?

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3 years ago

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2 years ago

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puteri [66]

The given question is incomplete. The complete question is :

What volume of 0.160 M solution of KOH must be added to 550.0 mL of the acidic solution to completely neutralize all of the 0.150 M hydrochloric acid?

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Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $HCl$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is KOH

We are given:

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3 years ago