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DiKsa [7]
3 years ago
8

How much HCI (hydrochloric acid) is in a 60-milliliter bottle that is marked 75% HCI?

Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0

Answer:

There is 45 ml HCI in the bottle.

Step-by-step explanation:

Given,

Total volume of the bottle = 60 ml,

Also, the bottle is marked 75% HCI,

Hence, the volume of the HCl in the bottle

= 75% of the volume of the bottle

= 75% of 60

=\frac{75\times 60}{100}

=\frac{4500}{100}

= 45 \text{ ml}

ArbitrLikvidat [17]3 years ago
3 0
Yeah I’m sorry I don’t know the answer
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Biologists tagged 139 fish in a lake on January 1, On February 1, they returned and collected a random sample
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4 0
3 years ago
A mystery number is multiplied by 11 then 10 is subtracted from it to give you a result of 34. What is the mystery number?
klemol [59]

Answer:

4

Step-by-step explanation:

And let the missing number be x

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2 years ago
Volume of prisms just 3 problems
Vladimir79 [104]

Answer:

2.  18 cubic cm.

3. 27 cubic cm

5. 90 cubic m

Step-by-step explanation:

2. Triangular prism

So, we have a triangular prism with a width of 3 cm, a height of 1.5 cm and a length of 4.  We'll take the triangle shape as the base.

Like for any prism, the volume is the base multiplied by the height.

So, the area of the base is found with the regular formula: base x height:

so, 3 x 1.5 = 4.5 sq cm for the base.

Then we multiply the base by the length to get the volume: 4.5 x 4 = 18 cubic cm.

3. Trapezoidal prism

Again, first step is to calculate the area of the trapezoid shape, then multiply by its depth.

The area of a trapezoid is calculated with the formula:

A = h/2 * (a + b) where a and b represent the short and long sides respectively.

So, for our given trapezoid:

A = 1.5/2 * (2+4) = 0.75 * 6 = 4.5 sq cm.

Then we multiply the base area by the height to get the volume:

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5. Triangular prism 2

The best way to approach this one is to consider it's a triangle prism with a height of 3 cm, and use the triangle shape (with sides of 13 and 5) as the base.

But to calculate the area of that triangle we need to find out the missing length. Using Pythagore's theorem, we can easily find the length of the other side with the hypotenuse formula:

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13² = x² + 5²

169 = x² + 25

x² = 144

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Now we can calculate the area of the triangle easily:

A = (b x h)/2 = (5 x 12)/2 = 30 sq m

Then multiply by the thickness of the prism....

V = 30 x 3 = 90 cubic m

4 0
3 years ago
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