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4 years ago

What is the normal ph of rain?

1 answer:

5 0

Since rain is water getting evaporated and condensed, it's equivalent to being distilled. Distilled water is pure water, so I'd guess the normal pH of rain is 7 - which is neutral (neither acidic nor alkaline)

However, when Sulfur Oxides and Nitrogen Oxides mix into the clouds, acid rain could be produced. This isn't "normal rain", though

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How many moles are in a sample of 9.47 x 1024 atoms of argon (Ar)? (Show your calculations for full credit. Correct answers will

Vitek1552 [10]

Answer:

<h2>15.73 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{9.47 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 15.730897...$

We have the final answer as

<h3>15.73 moles</h3>

Hope this helps you

5 0

3 years ago

Read 2 more answers

Ag + HCl --> ?<br> a) No reaction<br> b) AgCl + H2<br> c) AgCl + H2O<br> PLEASE HELP

Volgvan

Answer:

AgCl + H2 - Chemical Equation Balancer.

8 0

3 years ago

Read 2 more answers

The compound trimethylamine, (CH3)3N, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibr

GREYUIT [131]

Answer:

The $K_b$ expression for the weak base equilibrium is:

$K_b=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N]}$

Explanation:

$(CH_3)_3N(aq)+H_2O(l)\rightlefharpoons (CH_3)_3NH^++OH^-(aq)$

The expression of the equilibrium constant of base $K_c$ can be given as:

$K_c=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N][H_2O]}$

] $K_b=K_c\times [H_2O]=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N]}$

As we know, water is pure solvent, we can put $[H_2O]=1$

$K_b=K_c\times 1=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N]}$

So, the the $K_b$ expression for the weak base equilibrium is:

$K_b=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N]}$

6 0

3 years ago

Write the IUPAC substitutive name of the major product when 2-methylbut-1-ene reacts with: a) HCl b) HBr in the presence of pero

aleksandr82 [10.1K]

Answer and Explanation:

The IUPAC substitutive name of the major product when 2-methylbut-1-ene reacts are as follows

a) HCl = 2-chloro-2-methylbutane

b) HBr in the presence of peroxides = 1-bromo-2-methylbutane

c) H2O/ H2SO4 (dilute sulfuric acid) = 2-methylbutane-1,2-diol

d)BH3-THF followed by basic hydrogen peroxide = 2-methylbutan-1-ol

e) Chlorine in water = 2-chloro-2-methylbut -1 -ol

f) Bromine in carbon tetrachloride = 1,2- dibromo-2-methybutane

g) H2 in the presence of a metal catalys = isopentane or 2- methyl butane

8 0

3 years ago

How does distance affect the strength of the force of gravity

Otrada [13]

<span>The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases. you can look it up in Google</span>

3 0

3 years ago