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Kitty [74]
3 years ago
9

If a person takes 30 ml of vinegar a day and the molarity of the vinegar is 0. 84 m then how many grams of acetic acid (hc2h3o2

) will be consumed?
SAT
1 answer:
babunello [35]3 years ago
8 0

The mass of the acetic acid is 1.512 g.

<h3 /><h3>What is Molarity?</h3>

molarity is the concentration of a substance in mol per dm³

From the question,

The number of moles contained in the 30 mL vinegar is

  • n = (0.84×30)/1000
  • n = 0.0252 mol.

the molar mass of vinegar is calculated below.

  • m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
  • m.m = (1+24+3+32]
  • m.m = 60 g/mol.

To calculate the mass of acetic acid, we use the formula below.

  • R.m = n×m.m............. Equation 1

Where

  • R.m = mass of acetic acid.

Substitute these values into equation 1

  • R.m = (0.0252×60)
  • R.m = 1.512 g.

Hence, The mass of the acetic acid is 1.512 g.

Learn more about molarity here: brainly.com/question/20383725

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or 5 lengths of 234 feet to be cut from a board, the board must have a length of at least 1170 feet.

Let x represent the total length of the board so as to allow for the cutting of 5 lengths.

Since each length needed to be cut is 234 feet, hence:

x = number of lengths × feet per board

x = 5 lengths × 234 feet

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Hence for 5 lengths of 234 feet to be cut from a board, the board must have a length of at least 1170 feet.

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<h3>What is Heat stoke?</h3>

This is known to be a kind of a life-threatening condition that is said to often occurs if a person ignore the warning signs of heat exhaustion or do when a person do not act quickly enough to get care.

Hence, The option that are indicators of heatstroke are:

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A polynomial function has a root of –5 with multiplicity 3, a root of 1 with multiplicity 2, and a root of 3 with multiplicity 7
svetoff [14.1K]

Answer:

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Explanation:

I got it outta the book

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The length of x to the nearest tenth is; D: 38.6 m

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The image of the triangle is missing and so i have attached it.

From the image attached, we can find the value of x by using trigonometry ratio.

We see that;

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