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faltersainse [42]
3 years ago
5

Concentration of OH- for Ca(OH)

Chemistry
1 answer:
kiruha [24]3 years ago
5 0

Answer:

your missing something for the concentration

take a pic

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The following reaction is a _______ reaction.
jasenka [17]
Compound reaction :)
7 0
3 years ago
In the short a rainstorm might damage buildings and habitats by a river to flood. What positive effect might a rainstorm have in
ra1l [238]

Answer:

The rainstorm can dehydrate the plants

7 0
4 years ago
What mass of agno3 can be dissolved in 250g of water at 20°c?
Mice21 [21]
Hello there,

You should know the <span>solubility of AgNO3 in water at 20°C equals to 2220 g/L.

So we can say that in 1 L of water, 2220 g of AgNO3 can be dissolve.

Now you should know 1L = 1000g.

Which means 1000 g of water can dissolve 2220 g of AgNO3.

Therefore :

</span>250 g<span> --> x
1000 g --> 2220 g

So : </span>x = \frac{250*2220}{1000} =  \frac{555000}{1000}= 555g.

In short, 555g of AgNO3 can be dissolved in 250g of water at 20°C.

Hope this helps !

Photon
4 0
3 years ago
You are given a sample of several compounds to separate by paper chromatography. You draw a pencil line exactly 1.00 cm from the
Pavel [41]

Answer:

a) 6.3 cm

b) 8.0 cm

c) 0.7875

Explanation:

(a) The compound has moved above upto 7.3 cm from the bottom of the paper. Let us assume that line is drawn at 1.0 cm mark as the origin of spot. \

Distance traversed by compound= 7.3 - 1.0 cm = 6.3 cm

(b) Distance traversed by the solvent = 9.0 - 1.0 cm = 8.0 cm

(c) The Rf = Compound Migration distance / Solvent front migration distance

                      = 6.3/8.0 = 0.7875

7 0
3 years ago
QUESTION 24<br> Calculate [H 30+] of a solution with a pH of 2.14.
sleet_krkn [62]

Answer:

The hydronium ion concentration can be found from the pH by the reverse of the mathematical operation employed to find the pH. [H3O+] = 10-pH or [H3O+] = antilog (- pH).

I hope what I just explained is enough .

7 0
3 years ago
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