2 years ago

What element am I?

Chemistry

1 answer:

Serga [27]2 years ago

4 0

Answer:

H- hydrogen

Explanation: Hydrogen is in the first group meaning that it only has 1 valence electron and 1 energy level

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2 years ago

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What is the ph of a buffer prepared by adding 0.607 mol of the weak acid ha to 0.609 mol of naa in 2.00 l of solution? the disso

Paraphin [41]

Given:

0.607 mol of the weak acid

0.609 naa

2.00 liters of solution

The solution for finding the ph of a buffer:

[HA] = 0.607 / 2.00 = 0.3035 M
[A-]= 0.609/ 2.00 = 0.3045 M
pKa = 6.25

pH = 6.25 + log 0.3045/ 0.3035 = 6.25 is the ph buffer prepared.

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2 years ago

each year, one person in north america uses resources equal to how much land? A. 12 miles B. 12 acres C. 120 acres

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B. 12 acres

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2 years ago

The following chemical equation is not balanced: I2 + Na2S2O3 NaI + Na2S4O6 When this chemical equation is correctly balanced, w

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3 years ago

An aqueous solution of methanol (MM = 32.04 g/mol) has a molality of 8.83 m and a density of 1.15 g/mL. What is the molarity of

hodyreva [135]

We have that the the molarity of methanol in the solution is mathematically given as

Morality=7.91mol/l

<h3>Chemical Reaction</h3>

Question Parameters:

An <u>aqueous </u><em>solution </em>of methanol (MM = 32.04 g/mol)

A molality of 8.83 m and a density of 1.15 g/mL.

Generally the equation for the is mathematically given as

$Morality=\frac{moles of solute }{mass of the solvent}$

where

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Mass of solution=1289.9

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Volume=1.115L

Therefore

$Morality=\frac{moles of solute }{mass of the solvent}$

Morality=8.83/1.115

Morality=7.91mol/l

For more information on Chemical Reactionvisit

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2 years ago