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2 years ago

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

Chemistry

1 answer:

Flura [38]2 years ago

7 0

Given information:

Mass of pure silver = 195 mg

To determine :

Mass of silver chloride required to plate 195 mg of pure silver

Calculation:

The silver chloride used for silver plating usually contains 75.27 % silver

i.e.

every 100 mg of silver chloride will contain 75.27 mg silver

therefore, amount of silver chloride corresponding to 195 mg of silver would be = 195 mg * 100 mg/75.27 mg

= 259.1 mg

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Basile [38]

Answer:

2nd option

Explanation:

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2 years ago

Balance chemical equation Fe3O4 = Fe + CO2

m_a_m_a [10]

equation Fe3O4=Fe+CO2 is an impossible reaction

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3 years ago

To make 2.00 L of 0.300 M sulfuric acid, how many mL of a 1.00 M stock solution should be used?

Tamiku [17]

We are given with
M1 = 1.00 M

M2 = 0.300 M
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2 years ago

A 1.24g sample of a hydrocarbon, when completely burned in an excess of O2 yields 4.04g Co2 and 1.24g H20. Draw plausible struct

arsen [322]

Answer:

Plausible structure has been given below

Explanation:

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Number of mole = (mass/molar mass)

4.04 g of $CO_{2}$ = $\frac{4.04}{44}moles$ $CO_{2}$ = 0.0918 moles of $CO_{2}$

1 mol of $CO_{2}$ contains 1 mol of C atom

So, 0.0918 moles of $CO_{2}$ contains 0.0918 moles of C atom

1.24 g of $H_{2}O$ = $\frac{1.24}{18}moles$ $H_{2}O$ = 0.0689 moles of $H_{2}O$

1 mol of $H_{2}O$ contain 2 moles of H atom

So, 0.0689 moles of $H_{2}O$ contain $(2\times 0.0689)moles$ of $H_{2}O$ or 0.138 moles of $H_{2}O$

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Empirical formula of hydrocarbon is $C_{2}H_{3}$

So, molecular formula of one of it's analog is $C_{4}H_{6}$

Plausible structure of $C_{4}H_{6}$ has been given below.

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2 years ago

21 Which process is used to determine the concentration of an acid?

Inessa05 [86]

Answer:

4) Titration

Explanation:

Titration is a common process used to determine the concentration of acids. It does this by adding a solution of base with a known concentration to the acid until it reaches neutralization.

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3 years ago