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stiv31 [10]
3 years ago
9

Jade(a green gemstone) has a density of 3.6g/ml. If a sample displaces 35.5mL of water, what is the jades's mass?

Chemistry
2 answers:
Sonja [21]3 years ago
7 0
Hey there!:

Mass =  ?

Volume = 35.5 mL

density = 3.6 g/mL 

By the definition of density :

D = m / V

3.6 = m / 35.5

m = 3.6 * 35.5

m = 127.8 g


hope this helps!
tatuchka [14]3 years ago
3 0

Answer is: mass of a green gemstone is 127.8 grams.

d(jade) = 3.6 g/mL; density of jade.

V(jade) = 35.5 mL; volume of jade.

m(jade) = d(jade) · V(jade).

m(jade) = 3.6 g/mL · 35.5 mL.

m(jade) = 127.8 g; mass.

Density is a measure of mass per unit of volume (in this example grams per milliliter).

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74.81 grams of calcium carbonate are produced from 79.3 g of sodium carbonate.

Explanation:

The balanced reaction is:

Na₂CO₃ + Ca(NO₃)₂ ⟶ CaCO₃ + 2 NaNO₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

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then by stoichiometry the following quantities of mass participate in the reaction:

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mass of CaCO_{3} =\frac{79.3 grams of Na_{2} CO_{3} *100 grams of of CaCO_{3}}{106 grams of Na_{2} CO_{3}}

mass of CaCO₃= 74.81 grams

<u><em>74.81 grams of calcium carbonate are produced from 79.3 g of sodium carbonate.</em></u>

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                   |

                   |

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