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3 years ago

Do gases have mass and weight?

Chemistry

1 answer:

slega [8]3 years ago

7 0

Answer:

yes

Explanation:

they di because they have mass and wait

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What Group is Zn (zinc) in?<br> O A. 4<br> O B. 2A<br> O C. 12<br> O D. 30

Oxana [17]

I believe it’s (C.12)

3 0

4 years ago

Suppose a liquid level from 5.5 to 8.6 m is linearly converted to pneumatic pressure from 3 to 15 psi. What pressure will result

wlad13 [49]

Answer:

a) P = 9.58 psi for h=7.2 m

b) P=4.7 psi for h=5.94 m

Explanation:

Since the pressure Pon a static liquid level h is

P= p₀ + ρ*g*h

where p₀= initial pressure , ρ=density , g = gravity

then he variation of the liquid level Δh will produce a variation of pressure of

ΔP= ρ*g*Δh → ΔP/Δh = ρ*g = ( 15 psi - 3 psi) /( 8.6 m - 5.5 m) = 12/3.1 psi/m

if the liquid level is converted linearly

P = P₁ + ΔP/Δh*(h -h₁)

therefore choosing P₁ = 3 psi and h₁= 5.5 m , for h=7.2 m

P = 3 psi + 12/3.1 psi/m *(7.2 m -5.5 m) = 9.58 psi

then P = 9.58 psi for h=7.2 m

for P=4.7 psi

4.7 psi = 3 psi + 12/3.1 psi/m *(h -5.5 m)

h = (4.7 psi - 3 psi)/ (12/3.1 psi/m) + 5.5 m = 5.94 m

then P=4.7 psi for h=5.94 m

5 0

4 years ago

Camphor is a ketone compound and is one of the active ingredients in vicks products. if camphor has m+ = 152 and contains 1 doub

nordsb [41]

Answer:

C₁₀H₁₆O

Explanation:

Molecular formula can be determined from parent peak by using rule of thirteen.

Rule of Thirteen:

First divide the parent peak value by 13 as,

= 152 ÷ 13

= 11.69

Now, multiply 13 by 11,

= 13 × 11 (here, 11 specifies number of carbon atoms)

= 143

Now subtract 143 from 152,

= 152 - 143

= 9

Add 9 into 11,

= 9 + 11

= 20 (hydrogen atoms)

So, the rough formula we have is,

C₁₁H₂₀

Now, add one Oxygen atom to above formula and subtract one Carbon and 4 Hydrogen atoms as these numbers are equal to atomic mass of Oxygen atom as,

C₁₁H₂₀ -------O--------> C₁₀H₁₆O

Calculate Hydrogen deficiency index as,

HDI = (2x + 2 - y) / 2

where,

x = C atoms

y = H atoms

HDI = [2(10) + 2 - 16] / 2

HDI = (20 + 2 - 16) / 2

HDI = (22-16) / 2

HDI = 6 / 2

HDI = 3

It means, Camphor contains 1 double bond and two rings. As, HDI of double bond is 1 and HDI of one ring is 1.

7 0

4 years ago

A gas at a constant temperature of 300. K, a pressure of 200. kPa, and a volume of 15.0L was decreased to a volume of 10.0 L. Wh

Vesnalui [34]

Answer:

300 kPa

Explanation:

P2=P1V1/V2

You can check this by knowing that P and V at constant T have an inverse relationship. Hence, this is correct.

3 0

3 years ago

Calculate the mass of aluminum bromide that can be produced from 4.4 mil of bromide

Aloiza [94]

Answer:

197 grams

Explanation:

Without taking into account the number of sig figs you have for your values, you can say that the answer will once again be

197 g of aluminium bromide.

(I hope this is right)

7 0

3 years ago

Do gases have mass and weight?​

Do gases have mass and weight?