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Komok [63]
3 years ago
12

A metallurgist reacts 260.0 grams of 80.0% by mass silver nitrate solution with an excess of copper metal.

Chemistry
1 answer:
wariber [46]3 years ago
7 0

Answer:

132 g

Explanation:

Given data:

Mass of silver nitrate react = 260 g/100×80 = 208 g

Mass of silver metal produced = ?

Solution:

Chemical equation:

Cu + 2AgNO₃  →  2Ag + Cu(NO₃)₂

Number of moles of AgNO₃:

Number of moles = mass/molar mass

Number of moles = 208 g/ 169.87 g/mol

Number of moles = 1.22 mol

Now we will compare the moles of silver with solver nitrate from balance chemical equation.

            AgNO₃       :            Ag

                 2           :              2

                1.22        ;         1.22

Mass of Ag:

Mass = number of moles × molar mass

Mass = 1.22 mol × 107.8682 g/mol

Mass = 132 g

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if you take 2.0mL of a 7.0 ppm NaOH solution and dilute it to 250.0mL, calculate the final concentration in ppm.
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Answer:

C₂ = 0.056 ppm

Explanation:

Given data:

Initial volume = 2.0 mL

Initial concentration = 7.0 ppm

Final volume = 250.0 mL

Final concentration = ?

Solution:

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C₁V₁ = C₂V₂

C₁ = Initial concentration

V₁ = Initial volume

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V₂ = Final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

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4 0
3 years ago
What is a general representation of a secondary amine?
Makovka662 [10]

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4 0
3 years ago
Read 2 more answers
Consider the reaction NOBr(g) => NO(g) + 1/2 Br2(g). A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M-1
timama [110]

Answer:

Thus, the order of the reaction is 2.

The rate constant of the graph which is :- 2.00 M⁻¹s⁻¹

Explanation:

The kinetics of a reaction can be known graphically by plotting the concentration vs time experimental data on a sheet of graph.

The concentration vs time graph of zero order reactions is linear with negative slope.

The concentration vs time graph for a first order reactions is a exponential curve.  For first order kinetics the graph between the natural logarithm of the concentration vs time comes out to be a straight graph with negative slope.

The concentration vs time graph for a second order reaction is a hyberbolic curve. Also, for second order kinetics the graph between the reciprocal of the concentration vs time comes out to be a straight graph with positive slope.

Considering the question,

A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M⁻¹s⁻¹.

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How many Significant Figures does 105.60 have? *
nevsk [136]

Answer:

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5 0
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