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Tju [1.3M]
2 years ago
9

Identify the element that has 23 protons

Chemistry
2 answers:
barxatty [35]2 years ago
3 0

Answer:

Vanadium

Explanation:

Brums [2.3K]2 years ago
3 0

Answer:

Vanadium

Explanation:

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Antibodies are produced by a type of white blood cell called a plasma cell.
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Convert 771.8 g to kg
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The amount of kilograms is 0.7718
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Combustion of a 0.9827-g sample of a compound containing only carbon, hydrogen, and oxygen produced 1.900 g of CO2 and 1.070 g o
ankoles [38]

Answer:

The answer to your question is   C₂H₆O

Explanation:

Data

Compound   CxHyOz

mass of the sample = 0.9827

mass of CO₂ = 1.90 g

mass of H₂O = 1.070 g

Process

1.- Find the moles and grams of Carbon

                    44g of CO₂ ------------------ 12 g of C

                     1.9 g of CO₂ ---------------  x

                     x = (1.9 x 12) / 44

                     x = 0.52 g

                    12 g of C --------------------- 1 mol

                    0.52 g     -------------------- x

                    x = (0.52 x 1) / 12

                    x = 0.043 moles

2.- Find the moles and grams of Hydrogen

                   18 g of H₂O ----------------- 2 g of H

                   1.07 g of H₂O --------------  x

                   x = (1.07 x 2)/18

                   x = 0.12 g of H

                   1 g of H -------------------- 1 mol of H

                   0.12 g   --------------------- x

                   x = (0.12 x 1)/1

                   x = 0.12 moles of H

3.- Calculate the moles and grams of Oxygen

Mass of Oxygen = 0.9827 - 0.12 - 0.52

                            = 0.3427 g

                    16 g of O ----------------- 1 mol

                     0.3427 g ---------------- x

                     x = (0.3427 x 1) / 16

                     x = 0.021 moles

4.- Divide by the lowest number of moles

Carbon       0.043 / 0.021 = 2

Hydrogen   0.12 / 0.021 = 5.7 ≈ 6

Oxygen       0.021 / 0.021 = 1

5.- Write the empirical formula

                    C₂H₆O

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