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Fittoniya [83]
3 years ago
15

A reaction is performed in a lab whereby two solutions are mixed together. The products are a liquid and a solid precipitate. Wh

at procedures would facilitate measurement of actual yield of the solid
Chemistry
1 answer:
tigry1 [53]3 years ago
7 0

Answer:

filtration, drying, and weighing

Explanation:

<em>The procedures that would facilitate the measurement of the actual yield of the solid would be filtration of the precipitate, drying of the precipitate, and weighing of the precipitate respectively.</em>

The liquid/solid mixture resulting from the reaction can be separated by the process of filtration using a filter paper. The residue in the filter paper would be the solid while the filtrate would be the liquid portion of the reaction's product.

The residue can then be allowed to dry, and then weighed using a laboratory-grade weighing balance. The weight of the solid represents the actual yield of the solid.

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C. Line segment CD
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4 years ago
Metric conversion ( convert )
Nikitich [7]

Answer:

13. 2g

14. 5000mL

15. 104,000m

16. 160mm

17. 5600000mg

18. 10hs

19. 0.250km

20. 1daL

Explanation:

13. 1000milligram (mg) = 1gram (g)

Hence, 2000mg = 2000/1000

= 2g

14. 1 litre (L) = 1000millilitre (mL)

Hence, 5L = 5 × 1000

= 5000mL.

15. 1kilometre (km) = 1000metre (m)

Hence, 104km = 104 × 1000

= 104,000m

16. 1 centimetre (cm) = 10millimeters (mm)

Hence, 16cm = 16 × 10

= 160mm

17. 1kilogram (kg) = 1000000 milligram (mg)

Hence, 5.6kg = 5.6 × 1000000

= 5600000mg

18. 1 second (s) = 0.01 hectosecond (hs)

Hence, 1000s = 1000 × 0.01

= 10hs

19. 1000metre (m) = 1kilometre (km)

Hence, 250m = 250/1000

= 0.250km

20. 1 centiliter (cl) = 0.001 Decaliter (daL)

Hence, 1000cl = 1000 × 0.001

= 1daL

3 0
3 years ago
A substance made of two or more elements chemically combined in a set ratio or proportion is called what?
bearhunter [10]
A substance made of two or more elements chemically combined in a set ratio or proportion is called a  : compound

For example, water is an example of a compound that made by two elements, Hydrogen and oxygen

hope this helps
7 0
3 years ago
Read 2 more answers
How did the change of stress (adding or removing reactants or products) cause a shift in the equilibrium system of your solution
liubo4ka [24]

Answer:

One way is to add or remove a product or a reactant in a chemical reaction at equilibrium. When additional reactant is added, the equilibrium shifts to reduce this stress: it makes more product. When additional product is added, the equilibrium shifts to reactants to reduce the stress. :)

Explanation:I am not sure how to use data on here :(

7 0
4 years ago
Calculate the moles of calcium chloride (CaCl2) needed to react in order to produce 85.00 grams of calcium carbonate (CaCO3). us
BartSMP [9]

Answer:

0.85 mole

Explanation:

Step 1:

The balanced equation for the reaction of CaCl2 to produce CaCO3. This is illustrated below:

When CaCl2 react with Na2CO3, CaCO3 is produced according to the balanced equation:

CaCl2 + Na2CO3 -> CaCO3 + 2NaCl

Step 2:

Conversion of 85g of CaCO3 to mole. This is illustrated below:

Molar Mass of CaCO3 = 40 + 12 + (16x3) = 40 + 12 + 48 = 100g/mol

Mass of CaCO3 = 85g

Moles of CaCO3 =?

Number of mole = Mass /Molar Mass

Mole of CaCO3 = 85/100

Mole of caco= 0.85 mole

Step 3:

Determination of the number of mole of CaCl2 needed to produce 85g (i.e 0. 85 mole) of CaCO3.

This is illustrated below :

From the balanced equation above,

1 mole of CaCl2 reacted to produced 1 mole of CaCO3.

Therefore, 0.85 mole of CaCl2 will also react to produce 0.85 mole of CaCO3.

From the calculations made above, 0.85 mole of CaCl2 is needed to produce 85g of CaCO3

5 0
3 years ago
Read 2 more answers
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