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2 years ago

What volume (in mL) of 0.250 M HCI would be

Chemistry

1 answer:

Nitella [24]2 years ago

4 0

Answer: 1820 mL (to 3 sf)

Explanation:

The atomic mass of aluminum is 26.9815385 g/mol, so 4.10 g of aluminum is equal to 4.10/26.9815385 = 0.15195575300497 moles of Al.

From the coefficients of the equation, we know that for every 2 moles of aluminum consumed, 6 moles of HCl are consumed.

So, this means we need 0.15195575300497(6/2) = 0.45586725901491 moles of HCl.

Substituting into the molarity formula,

0.250 = 0.45586725901491/(liters of HCl)
liters of HCl = 0.45586725901491/0.250
liters of HCl = 1.8234690360596 L = 1820 mL (to 3 sf)

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6 moles of oxygen, or 3O2.

Explanation:

I would build a proportion for this:

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3 years ago

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the answer is magnetic separation, not sedimentation separation

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A 6.1-kg solid sphere, made of metal whose density is 2600 kg/m3, is suspended by a cord. When the sphere is immersed in a liqui

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Answer:

Density of the liquid = 1470.43 kg/m³

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Mass of solid sphere(m) = 6.1 kg

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Buoyant force = $\rho\times gV$

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The free body diagram of the sphere is shown in image.

According to image:

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Applying in the equation to find the density of the liquid as:

$6.1\times 9.81=\rho\times 9.81\times 0.002346+26$

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3 years ago

For a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k, calculate the inner diameter if you are designing for

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The inner diameter for a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k is 1.45 m

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Stack height means the distance from the ground-level elevation at the base of the stack to the crown of the stack.

If a stack arises from a building or other structure, the ground-level elevation of that building or structure will be used as the base elevation of the stack.

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2 years ago

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Answer:

1.B

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