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Sveta_85 [38]
3 years ago
14

How to find the charge of an element

Chemistry
1 answer:
katrin2010 [14]3 years ago
7 0

Answer:

the atomic number is how you find the charge

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What two colors make pink?
KiRa [710]
Red and white I think
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2 years ago
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How many grams of H3PO4 are in 175mL of a 2.50M solution of H3PO4?
solmaris [256]
<span>(0.1875 moles)(98.004 g/mole) = 18.37575 g </span>
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3 H2 (g) + N2 (g) 2 NH3 (g)
ale4655 [162]

Answer:

Mass = 0.697 g

Explanation:

Given data:

Volume of hydrogen = 1.36 L

Mass of ammonia produced = ?

Temperature = standard = 273.15 K

Pressure = standard = 1 atm

Solution:

Chemical equation:

3H₂ + N₂       →      2NH₃

First of all we will calculate the number of moles of hydrogen:

PV  = nRT

R = general gas constant = 0.0821 atm.L/mol.K

1atm ×1.36 L = n × 0.0821 atm.L/mol.K × 273.15 K

1.36 atm.L = n × 22.43 atm.L/mol

n = 1.36 atm.L / 22.43 atm.L/mol

n = 0.061 mol

Now we will compare the moles of hydrogen and ammonia:

                 H₂         :          NH₃

                  3          :            2

                0.061     :         2/3×0.061 = 0.041

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 0.041 mol × 17 g/mol

Mass = 0.697 g

4 0
3 years ago
Calculate the number of neutrons in potassium-40.
dsp73

Answer:

21 neutrons

Explanation:

There are 21 neutrons in Pottasium-40

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Butanoic acid + 2 propanol
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Answer:

Butanoic acid and 2-propanol reacts to form isopropyl butyrate.

Explanation:

brainliest plz

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2 years ago
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