3 years ago

What is the number of protons for 2^1H?

Chemistry

1 answer:

rusak2 [61]3 years ago

7 0

The answer would be 14

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A water treatment tablet contains 20.0 mg of tetraglycine hydroperiodide, 40.0% of which is available as soluble iodine. If two

Galina-37 [17]

Answer:

$16\ \text{ppm}$

Explanation:

Mass of one tablet = 20 mg

Mass of two tablets = $2\times 20=40\ \text{mg}$

Percent that is soluble in water = 40%

Mass of tablet that is soluble in water = $0.4\times 40=16\ \text{mg}$

So, mass of solute is $16\ \text{mg}$

Density of water = 1 kg/L

Volume of water = 1 L

So, mass of 1 L of water is $1\times 1=1\ \text{kg}=1000\ \text{g}$

PPM is given by

$\dfrac{\text{Mass of solute}}{\text{Mass of solvent}}\times 10^6=\dfrac{16\times 10^{-3}}{1000}\times 10^6\\ =16\ \text{ppm}$

Hence, the concentration of iodine in the treated water $16\ \text{ppm}$ .

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3 years ago

What is the total number of neutrons in an atom of 0-18?

AVprozaik [17]

A = mass number, A = protons + neutrons
Z = atomic number, Z = protons
neutrons = A - Z
neutrons = 18 - 8 = 10

3 0

2 years ago

Read 2 more answers

If you rip a dollar bill in half is it qualified as 50 cents

omeli [17]

Yes, 50 pennies plus 50 pennies equals 100 pennies minus 50pennies equals 50 pennies.

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3 years ago

The molar mass of aniline is 93 g/mol. what is its molecular formula

Mashutka [201]

Answer:

Molecular formula of aniline is C6H5NH2.

Explanation:

As we know, molecular mass can be calculated as

Molar mass = C6H5NH2

Molar mass = (6*12)+(1*7)+(28)

Molar mass = 93 g/mol

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3 years ago

A parent who is convinced that children have rights that ought not to be interfered with by adults is most likely:

DedPeter [7]

(does this belong in chemistry?)

anyways, the parent was most likely a kid who wanted privacy. they wanted something so they are giving it to their kids.

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3 years ago