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3 years ago

Identify those elements that can be isolated by electrolysis of their aqueous salts. (Select all that apply.)

Chemistry

1 answer:

vovangra [49]3 years ago

3 0

Chlorine and strontium are all over here too though so I’m not gonna go yet but I’m not going back

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A squirrel weighs 3,750 grams, how much does the squirrel weigh in hectograms?

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4 years ago

A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a

weeeeeb [17]

A. o. I know gamma can I Hope this helps

A now i remember yeah gamma only

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3 years ago

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The ammonia solution that is purchased for a stockroom has a molarity of 15 M. Determine the volume of 15 M NH3(aq) that must be

lys-0071 [83]

Answer: The volume of stock solution of ammonia that is needed is 48.67 mL

Explanation:

To calculate the volume of stock solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the stock ammonia solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted ammonia solution

We are given:

$M_1=15M\\V_1=?mL\\M_2=1.46M\\V_2=500mL$

Putting values in above equation, we get:

$15\times V_1=1.46\times 500\\\\V_1=\frac{1.46\times 500}{15}=48.67mL$

Hence, the volume of stock solution of ammonia that is needed is 48.67 mL

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4 years ago

A student titrated a 25.00-mL sample of a solution containing an unknown weak, diprotic acid (H2A) with N2OH. If the titration r

lakkis [162]

Answer: The concentration of weak acid is $3.674\times 10^{-2}M$

Explanation:

To calculate the concentration of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_2A$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=2\\M_1=?M\\V_1=25.00mL\\n_2=1\\M_2=0.1036M\\V_2=17.73mL$

Putting values in above equation, we get:

$2\times M_1\times 25.00=1\times 0.1036\times 17.73\\\\M_1=\frac{1\times 0.1036\times 17.73}{2\times 25.00}=3.674\times 10^{-2}M$

Hence, the concentration of weak acid is $3.674\times 10^{-2}M$

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3 years ago

E. H2CrO4 + Sr(OH)2 →

katrin2010 [14]

Answer:

The answer to your question is SrCrO₄ + H₂O

Explanation:

Data

H₂CrO₄ + Sr(OH)₂ ⇒

We can notice that this is a Redox reaction or neutralization reaction because the reactants are an acid (H₂CrO₄) and a base (Sr(OH)₂). These reactions are also called double displacement reactions.

In these kind of reactions the products are always a binary or ternary salt and water.

Then, for this reaction,

H₂CrO₄ + Sr(OH)₂ ⇒ SrCrO₄ + H₂O

6 0

3 years ago

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