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2 years ago

A 50.0 ml sample of 0.108 m h2so4 is diluted to 250.0 ml. what is its new molarity?

Chemistry

1 answer:

Aleksandr [31]2 years ago

3 0

A 50.0 ml sample of 0.108 m h2so4 is diluted to 250.0 ml. Its new molarity will be 0.0216 m.

Dilution would be the process of lowering a solute's concentration in a solution. It usually just includes combining the solution with much more solvent, such as water. A solution is diluted when more solvent is added without increasing solute.

Molarity can be calculated by using the formula:

$M_{1} V_{1} = M_{2} V_{2}$

where, M is molarity and V is volume.

Given data:

$M_{1}$ = 0.108 m

$V_{1}$ = 50 ml

$V_{2}$ = 250 ml

Put the value of given data in above equation.

0.108 m × 50 ml = M × 250ml

M = 0.0216 m

Therefore, the new molarity will be 0.0216 m.

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Temka [501]

Answer:

0.2598 M

Explanation:

Molarity is mol/L, so we have to convert the grams to moles and the mL to L. To convert between grams and moles you need the molar mass of the compound, which is 36.46g/mol.

$0.3297gHCl*\frac{1molHCl}{36.46gHCL} = 0.00904279 mol HCl$

$34.81 mLHCl * \frac{1L}{1000L} = 0.03481 L HCl$

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Round to the lowest number of significant figures = 0.2598 M

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3 years ago

A gold nugget has a density of 38.6g/cm3 and a mass of 270.2. what is its volume?

aivan3 [116]

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In this problem, we have density and we have mass so we can plug into the equation and solve for V.

38.6=270.2/V

<em>*Multiply both sides by V*</em>

38.6V=270.2

<em>*Divide both sides by 38.6*</em>

V=7

The volume of the gold nugget is 7cm3.

Hope this helps!!

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3 years ago

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dolphi86 [110]

Answer:

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Explanation:

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