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3 years ago

Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq). Solubility Rules are found here.

1 answer:

5 0

Write out the equation:
AgNO3(aq)+K2SO4(aq) --> Ag2SO4(s)+K2(NO3)...

Balance the equation:
2 AgNO3(aq)+K2SO4(aq) --> Ag2SO4(s)+K2(NO3)2...

Remember to keep molecules intact when you write out the ions.
(2Ag+)+(2NO3-)+(2K+)+(SO42-) --> (Ag2SO42
Cancel out all the spectator ions. These are ions that watch the reaction that didn't change. For this problem 2K+ & 2NO3- are the spectator ions.

You are left with your net ionic equation of
2Ag+(aq)+SO42-(aq)-->Ag2SO4(s)

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2 years ago

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3 years ago

If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution, what is the concentration of sodium chloride in the dilute

Naddik [55]

Answer:

D) 0.450 M

Explanation:

Given data

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Volume of water (VH₂O): 4.00 mL

Final volume (V₂): V₁ + VH₂O = 6.00 mL + 4.00 mL = 10.0 mL

Final concentration (C₂): ?

We can determine the final concentration using the dilution rule.

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4 years ago

The density of copper metal is 8.9 g/mL. What is the volume of 2.5 kg of this metal?

AlekseyPX

Answer:- The volume of copper is 280 mL.

Solution:- Density and mass of copper metal are given and it asks to calculate the volume of it.

Density is directly proportional to mass and inversely proportional to the volume. The density formula is:

$D=\frac{M}{V}$

where D stands for density, M stands for mass and V stands for volume.

Since, the problem asks to calculate the volume, let's rearrange the formula for volume.

$V=\frac{M}{D}$

The given density is 8.9 grams per mL and the mass is 2.5 kg. We need to convert the mass unit from kg to g so that the g unit could be canceled while calculating volume.

The conversion factor is, 1kg = 1000g

$2.5kg(\frac{1000g}{1kg})$

= 2500g

Let's plug in the values in the density formula to calculate the volume.

$\frac{2500g}{\frac{8.9g}{mL}}$

= 280.89 mL

If the sig figs are considered then the answer needs to be round to two sig figs and hence the volume becomes 280 mL.

8 0

4 years ago