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3 years ago

How much more acidic/more H+ concentration is a pH of 6 than pH of 8

Chemistry

1 answer:

DochEvi [55]3 years ago

7 0

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Answer: 1000x

Explanation:

I hope this helped!

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Calculate [H+] if [OH-] = 3.7 X 10-5 M

barxatty [35]

Answer:

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Explanation:

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4 years ago

Grams smallest to kilograms and milligrams

Anna007 [38]

Grams is smaller than kilograms but larger than milligrams

1g = 0.001 kg
1g = 1000 mg

Grams is an SI unit for mass.

International System of Units (SI Units) are organized body of measurements for physical quantity. They are set to be the norm or global norm scaling for every physical quantity which includes kilogram, meter, second, ampere, kelvin, candela and mole. These measurements then can increase or decrease by the power of ten, multiplied or divided. As said and explained, the SI is helpful in describing objects because
1. They give us the idea of how much matter is contained in that single substance or the current state the matter is in or how hot or cold. We measure and can quantify the quality of the specific matter. 
2. SI Units are a global set of measurement hence, we can communicate with ease from western to eastern countries with these measurements without having problems in terms of portraying or displaying a set of physical quantities.

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3 years ago

Which of the following best describe the particles present in a 2.0 M aqueous solution of Al(NO3)3?2 M Al3+(aq) and 18 M NO3-(aq

zvonat [6]

Answer:

The correct answer is: 2M Al3+(aq) and 6 M NO3-(aq)

Explanation:

Step 1: Data given

2.0 M Al(NO3)3

Step 2:

Al(NO3)3 in water will dissociate as following:

Al(NO3)3 → Al^3+ + 3NO3^-

For 1 mol of Al(NO3)3 we will have 1 mol of Al^3+ and 3 moles of NO3^-

We know that the molarity of Al(NO3)3 = 2.0 M, this means 2.0 mol/ L

The mol ratio Al(NO3)3 and Al^3+ is 1:1 so the molarity of Al^3+ is 2.0 M

The mol ratio Al(NO3)3 and NO3^- is 1:3 so the molarity of NO3^- is 6.0M

The correct answer is: 2M Al3+(aq) and 6 M NO3-(aq)

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3 years ago

Why is a cell membrane like a security guard because....... Why?????

White raven [17]

The cell membrane allows certain items into a cell and blocks others from entering, just like a security guard protects a real factory.

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3 years ago

What is the difference between an endothermic reaction and an endothermic process?

Gnoma [55]

Answer:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings

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3 years ago