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3 years ago

What charge would an ion have if it had more electrons than protons?

Chemistry

2 answers:

gtnhenbr [62]3 years ago

6 0

That ion will have the charge of every extra electrons.

Natasha_Volkova [10]3 years ago

3 0

Answer:

A negative charge for each extra electron

Explanation:

Protons have a positive charge, while electrons have a negative charge. An ion is formed when in an atom the number of protons differs from the number of electrons.

If there are more electrons that protons, then the net sum of negative charges would be greater than the net sum of positive charges, thus the ion would have a negative charge.

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How many significant figures are in the mass 3.0047 g?

Rudik [331]

Answer:

5 significant figures

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4 years ago

g If 50.0 mL of a 0.75 M acetic acid solution is titrated with 1.0 M sodium hydroxide, what is the pH after 10.0 mL of NaOH have

V125BC [204]

Answer:

pH = 2.66

Explanation:

Acetic Acid + NaOH → Sodium Acetate + H₂O

First we calculate the number of moles of each reactant, using the given volumes and concentrations:

0.75 M Acetic acid * 50.0 mL = 37.5 mmol acetic acid

1.0 M NaOH * 10.0 mL = 10 mmol NaOH

We calculate how many acetic acid moles remain after the reaction:

37.5 mmol - 10 mmol = 27.5 mmol acetic acid

We now calculate the molar concentration of acetic acid after the reaction:

27.5 mmol / (50.0 mL + 10.0 mL) = 0.458 M

Then we calculate [H⁺], using the following formula for weak acid solutions:

[H⁺] = $\sqrt{C*Ka}=\sqrt{0.458M*1.76x10^{-5}}$

[H⁺] = 0.0028

Finally we calculate the pH:

pH = -log[H⁺]

pH = 2.66

8 0

3 years ago

Four people weigh a standard mass of 10.00g on the same balance. Which of the following sets of readings suggests measurements t

Svetach [21]

An example of accurate but not precise would be 3 people weigh a 10g sample. the weights are 0g, 10g, & 20 grams. the scale is way off but the weights average to the right thing.
precise but not accurate would weighing a 10g sample 3 times and getting 5.5, 5.4, & 5.5. they'e all incredibly similar therefore precise but its nowhere near 10, so not accurate.
neither precise nor accurate would be 3 weights being 10, 20, &30. It averages wrong and is imprecise.

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4 years ago

What change in energy occurs when you burn coal or petroleum??

expeople1 [14]

Chemical energy is converted to thermal energy.

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3 years ago

Read 2 more answers

Atoms of metallic elements tend to

melomori [17]

Answer:

Explanation:

One of the properties of metals is their abilities to form a stable compounds by losing electron(s). Metals form positive ions (cations) when they lose electron(s).

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3 years ago