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Gnesinka [82]
3 years ago
13

Silver chloride, often used in silver plating, contains 75.27%Ag. Calculate the mass of silver chloride required to plate 195 mg

mg of pure silver.
Chemistry
1 answer:
kenny6666 [7]3 years ago
6 0

Answer:

259 mg is the mass of silver chloride required to plate 195 mg of pure silver.

Explanation:

Silver chloride contains 75.27 percent silver. It can be concluded that:-

For every 100 mg of silver chloride, 75.27 mg of silver we can get.

So, to produce 195 mg of silver, the amount of silver chloride required can be calculated as:-

Mass=\frac{100\times 195}{75.27}\ mg=259\ mg

<u>259 mg is the mass of silver chloride required to plate 195 mg of pure silver.</u>

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weeeeeb [17]

Answer:

1s*2 2s*2 2p*6

Explanation:

atomic number of neon is 10 so the s-shell contains 2 electron and p-shell contains 6

3 0
3 years ago
What types of chemical<br> reactions can change a toxic<br> chemical into one that is less<br> toxic
Masteriza [31]

Answer:

Very toxic materials are substances that may cause significant harm or even death to an individual if even very small amounts enter the body.There are a number of very toxic materials that may be used in workplaces. Some examples include carbon monoxide, hydrogen sulfide, chlorine and sodium cyanide

Explanation:

here are generally four types of toxic entities; chemical, biological, physical and radiation: Chemical toxicants include inorganic substances such as, lead, mercury, hydrofluoric acid, and chlorine gas, and organic compounds such as methyl alcohol, most medications, and toxins.

8 0
2 years ago
1-propanol (P1° = 20.9 Torr at 25 °C) and 2-propanol (P2° = 45.2 Torr at 25 °C) form ideal solutions in all proportions. Let x1
jekas [21]

Answer:

y1 = 0.3162

y2 = 0.6838

Explanation:

ok let us begin,

first we would be defining the parameters;

at 25°C;

1-propanol P1° = 20.90 Torr

2-propanol P2° = 45.2 Torr

From Raoults law:

P(1-propanol) = P⁰ × X(1-propanol)

P(1-propanol) = 20.9 torr × 0.45 = 9.405

P(1-propanol) = 9.405 torr

Also P(2-propanol) = P⁰ × X(2-propanol)

P(2-propanol) = 45.2 torr × 0.45

P(2-propanol) = 20.34 torr

but the total pressure = sum of individual pressures

total pressure = 9.405 + 20.34

total pressure = 29.745 torr

given that y1 and y2 represent the mole fraction of each in the vapor phase

y1 = P1 / total pressure

y1 = 9.405/29.745

y1 = 0.3162

Since y1 + y2 = 1

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∴ y2 = 1 -  0.3162

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cheers, i hope this helps.

7 0
3 years ago
A sample has a pH of -0.248 (yes, it really is possible to have a negative pH). Find
dalvyx [7]

Answer:

pOH= 14.248

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Explanation:

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[OH-]=10^-pOH= 10^-14.248=5.65 x10^-15M

5 0
3 years ago
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AfilCa [17]
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