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2 years ago

The maximum safe operating pressure for acetylene is ___ psi.group of answer choices

Chemistry

1 answer:

BabaBlast [244]2 years ago

6 0

The operating pressure for acetylene should never exceed 15 psi.

<h3><u>What is pressure ?</u></h3>

According to the kinetic theory of gases, gas particles are constantly moving and interacting with other particles as well as the container walls.

Even while collisions with container walls are elastic (i.e., they don't result in any net energy gain or loss), a gas particle nonetheless applies force to the wall as a result of the impact.

Pressure is the result of the sum of all these forces spread over the container's walls. The force of all gas particle/wall collisions divided by the surface area of the wall is the definition of pressure (P):

Pressure = force/ area

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3 years ago

How does wavelength differ in high and low frequency waves?

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4 years ago

Read 2 more answers

tetraphosphorous hexaoxide is formed by the reaction of phosphorous (p4) with oxygen gas. if the reaction of 75.3 g of p4 with 3

True [87]

the Percentage yield for the reaction = 48.8%

What is Percentage yield ?

The % ratio of the theoretical yield to the actual yield is known as the percent yield. It is calculated as the theoretical yield multiplied by 100% divided by the experimental yield. The percent yield is 100% if the theoretical and actual yields are equal. Because the real yield is frequently lower than the theoretical value, percent yield is typically lower than 100%. This may be due to incomplete or conflicting reactions or sample loss during recovery. If the percent yield is more than 100%, more sample than expected was retrieved from the reaction.

4 P + 3 O2 = P4O6

moles P = 75.3 g / 30.9738 g/mol= 2.43

moles O2 required = 2.43 x 3 / 4=1.82

actual moles O2 = 38.7 g /32 g/mol=1.21 so O2 is the limiting reactant

theoretical moles P4O6 = 1.21 / 3=0.403

theoretical mass P4O6 = 0.403 mol x 219.895 g/mol=88.6 g

% yield = 43.3 x 100/ 88.6 = 48.8 %

the Percentage yield for the reaction = 48.8%

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4 0

1 year ago

A piece of silver metal weighting 194.3g placed in graduated cylinder containing 242.0ml of water the volume of water now reads

Sav [38]

Explanation:

Volume of metal = 260.5ml - 242.0ml = 18.5ml

Density = Mass / Volume = 194.3 / 18.5 = 10.5g/cm³.

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3 years ago

2.998x10^8 m/s is how many kilometers per hour

Alex

1.079 x 10⁹ km/h

<h3>Further explanation</h3>

2.998 x 10⁸ m/s has been known as the speed of light.

Let us convert the unit m/s to km/hour.

Change in unit length:

If 1 km = 1,000 cm, then $\boxed{ \ 1 \ cm = 0.001 \ km \ } \rightarrow \boxed{ \ 1 \ cm = 10^{-3} \ km \ }$

Change in unit time:

If $\boxed{ \ 1 \ hour = 60 \ minutes = 3,600 \ seconds \ }$ , then $\boxed{ \ 1 \ second = \frac{1}{3,600} \ hours \ }$

The Process:

$\boxed{ \ 2.998 \times 10^8 \ \frac{m}{s} \times \frac{10^{-3} \ km}{1 \ m} \times \frac{1 \ s}{\frac{1}{3,600} \ hours} \ }$

$\boxed{ \ 2.998 \times 10^8 \times 10^{-3} \ km \times \frac{3,600}{hours} \ }$

$\boxed{ \ 10,792.8 \10 \times 10^5 \ \frac{km}{hour} \ }$

Remember, we must write the results in scientific notation, i.e.,

$\boxed{\ a \times 10^b \ } \rightarrow \boxed{ \ 1 \leq a < 10 \ } \rightarrow \boxed{ \ b \ must \ be \ an \ integer \ }$

Thus the result of unit conversion is

$\boxed{ \ \boxed{ \ 2.998 \times 10^8 \ m/s \ } \rightarrow \boxed{ \ 1.079 \times 10^9 \ km/h} \ }$

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Keywords: speed of light, convert, m/s to km/h, unit length, time, hours, minutes, second, scientific notation

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4 years ago

Read 2 more answers