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katrin2010 [14]
2 years ago
14

What are the relative numbers of h3o+ and oh- ions in an acidic and alkaline and a neutral solution?

Chemistry
2 answers:
Kryger [21]2 years ago
7 0

Explanation:

  • When a solution is acidic in nature then it means its pH range is from 1 to 6.9. And, in an acidic solution there are more number of hydrogen (H^{+}) or hydronium (H_{3}O^{+}) ions as compared to hydroxide ions (OH^{-}).

    For acidic solutions,    [H^{+}] or [H_{3}O^{+}] > [OH^{-}]

  • Whereas if a solution is neutral in nature then its pH will be equal to 7. This means that concentration of hydrogen ions will be equal to concentration of hydroxide ions.

    For neutral solutions,    [H^{+}] or [H_{3}O^{+}] = [OH^{-}]

  • If a solution is basic in nature then its pH will be greater than 7. This means that in a basic solution concentration of hydroxide ions is more than the concentration of hydrogen ions.

    For basic solutions,   [H^{+}] or [H_{3}O^{+}]  < [OH^{-}]

lana [24]2 years ago
3 0
Acid more H3O+ than OH-
Base less H3O+ than OH-
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A car traveling at a constant speed travels 175 miles in four hours. How many minutes will it take for the car to travel 1000 fe
elena-14-01-66 [18.8K]

It takes 0.26 minutes to travel 1000 feet

<u>Solution:</u>

Given that car traveling at a constant speed travels 175 miles in four hours

Distance = 175 miles

Time taken = 4 hours

Convert the units to feet and minute

Given that,

1 mile = 5280 feet

175 miles = 5280 x 175 feet = 918720 feet

Also we know that,

1 hour = 60 minutes

4 hours = 60 x 4 minutes = 240 minutes

Thus, we got,

Distance = 918720 feet

Time taken = 240 minutes

<em><u>Find the speed of car</u></em>

<em><u>Speed is given by formula:</u></em>

speed = \frac{distance}{time}

speed = \frac{918720}{240} = 3828

Thus speed of car is 3828 feet per minute

<em><u>How many minutes will it take for the car to travel 1000 feet?</u></em>

Let "x" be the minutes needed for 1000 feet

speed of car is 3828 feet per minute

1 minute = 3828 feet

x minute = 1000 feet

This forms a proportion. We can solve by cross multiplying

x \times 3828 = 1000 \times 1\\\\x = \frac{1000}{3828}\\\\x = 0.26

Thus it takes 0.26 minutes to travel 1000 feet

7 0
2 years ago
A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the
vekshin1

Answer:

A - Is the material malleable or ductile?

Explanation:

3 0
2 years ago
What is the empirical formula of a compound which contains 84.4% c and 15.6% h by mass?
podryga [215]

Answer: The empirical formula for the given compound is CH_2

Explanation : Given,

Percentage of C = 84.4 %

Percentage of H = 15.6 %

Let the mass of compound be 100 g. So, percentages given are taken as mass.

Mass of C = 84.4 g

Mass of H = 15.6 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Carbon =\frac{\text{Given mass of Carbon}}{\text{Molar mass of Carbon}}=\frac{84.4g}{12g/mole}=7.03moles

Moles of Hydrogen = \frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{15.6g}{1g/mole}=15.6moles

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 7.03 moles.

For Carbon = \frac{7.03}{7.03}=1

For Hydrogen  = \frac{15.6}{7.03}=2.22\approx 2

Step 3: Taking the mole ratio as their subscripts.

The ratio of C : H = 1 : 2

Hence, the empirical formula for the given compound is C_1H_2=CH_2

7 0
2 years ago
Suggest why sodium and hydrogen ions do not diffuse at the same rate
Troyanec [42]

Answer:

sodium has got ionic bonds that are weak

compared to hydrogen covalent bonds that are strong

8 0
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When elemental sodium is added to water, the sodium atoms ionize spontaneously. uncharged na becomes na+. this means that the na
Temka [501]
Ionized, become charged, become a cation

hopefully that helps
5 0
2 years ago
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