All categories

4 years ago

A solution with a pH of 13 is

1 answer:

Natasha2012 [34]4 years ago

8 0

Anything greater that 7 is a base....so 13 would be a very strong base for example a drain cleaner. Hopefully this is what you are looking for.

You might be interested in

Element X consist of two isotopes with masses of 62.9 and 64.9. The relative atomic mass of the element is 63.6. What is th

koban [17]

Answer:

it is 50%

Explanation:

62.9x50=3145

64.9x50=3245

3245+3145=6390

6390/100=63.9

4 0

3 years ago

For water to become a mechanical weathering agent through ice wedging, it needs to go through a cycle of freezing and thawing.

Elina [12.6K]

The statement "<span>For water to become a mechanical weathering agent through ice wedging, it needs to go through a cycle of freezing and thawing." is true</span>

4 0

3 years ago

Some of the energy from the sun is reflected or absorbed as it passes through the atmosphere. Middle school science question

kondor19780726 [428]

Answer:

A. true

Explanation:

i.hope it helps u

3 0

3 years ago

The normal range of the pH of blood is between 7.35 and 7.45; variations beyond this range have significant health implications.

patriot [66]

Answer:

The hydrogen ion concentrations associated with these pH value 7.35 is $4.5\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.45 is $3.6\times 10^{-8} M$ .

Explanation:

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

1) pH = 7.35

Putting values in above equation, we get:

$7.35=-\log[H^+]$

$[H^+]=4.467\times 10^{-8} M\approx 4.5\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.35 is $4.5\times 10^{-8} M$

2) pH = 7.45

Putting values in above equation, we get:

$7.45=-\log[H^+]$

$[H^+]=3.548\times 10^{-8}M \approx 3.6\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.45 is $3.6\times 10^{-8} M$ .

8 0

3 years ago

A source of zinc metal can be zinc ore containing zinc(II) sulfide. The ore is roasted in pure oxygen to produce the oxide and t

morpeh [17]

Answer:

32.7 grams of Zn will remained in the crucible after cooling.

Explanation:

$2ZnS+3O_2 \rightarrow 2ZnO + 2SO_2$ ..[1]

$ZnO+C\rightarrow Zn+CO$ ..[2]

Adding [1] + 2 × [2] we get:

$2ZnS+3O_2+2C \rightarrow 2Zn + 2CO+2SO_2$ ..[3]

Moles of ZnS in crucible = 0.50 mol

According to reaction [3]. 2 moles of ZnS gives 2 moles of Zn.

Then 0.50 moles of ZnS will give:

$\frac{2}{2}\times 0.50 mol=0.50 mol$ of Zn.

Mass of 0.50 moles of Zn =

= 0.50 mol × 65.4 g/mol =32.7 g

32.7 grams of Zn will remained in the crucible after cooling.

5 0

4 years ago