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3 years ago

A sample of a substance has a mass of 4.2 grams and a volume of 6 milliliters. The density of this substance is

Chemistry

2 answers:

Gnom [1K]3 years ago

8 0

Answer:

Density of the given substance is 0.7 grams/mL

Explanation:

Density is equal to $\frac{mass}{volume}$

Here mass of substance is 4.2 grams and volume of substance is 6 mL

So density = $\frac{4.2 g}{6 mL}=0.7 g/mL$

Here final answer should contain one significant figure.

Tanzania [10]3 years ago

4 0

Hello!

Mass =4.2 g

Volume =6 mL

Therefore:

Density = mass / volume

Density = 4.2 / 6

Density = 0.7 g/mL

Hope that helps!

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Write the balanced equation for the reaction of aqueous Pb ( ClO 3 ) 2 Pb(ClO3)2 with aqueous NaI . NaI. Include phases. chemica

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Moles of lead (II) iodide = 0.26 moles

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$0.26mol=\frac{\text{Mass of lead (II) iodide}}{461.1g/mol}\\\\\text{Mass of lead (II) iodide}=(0.26mol\times 461.1g/mol)=119.89g$

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