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Varvara68 [4.7K]
3 years ago
11

How many seconds elapsed in 2.0 hours

Chemistry
1 answer:
maxonik [38]3 years ago
8 0
60 seconds times 60 minutes is 3,600 seconds, or one hour. 3,600 times 2 is 7,200 seconds.
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A sealed 10.0 L flask at 400 K contains equimolar amounts of ethane and propanol in gaseous form. Which of the following stateme
Phoenix [80]

Answer:

(C) The average molecular speed of ethane is equal to the average molecular speed of propanol.

Explanation:

When dealing with gases, you know that the temperature and speed are related. When held at a constant temperature, the speed is also held constant. We also know that ideal gases behave the same despite their identities.

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3 years ago
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In Balancing Equations, why do I put a 3 before reactant H?
Katena32 [7]
You have 3 (h2(so4)) on the reactants side so you need to have 6 total hydrogen’s on the products side. Therefore 3(h2) is required.
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3 years ago
Which of these properties is the best one to use for identification of an element?
katovenus [111]
the number of protons in the atomic nucleus
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3 years ago
C.<br> Calculate the number of moles in 62g of CO2
worty [1.4K]

Answer:

32÷5

I'm just tryna get points I'm sorry

goodluck tho❤

4 0
3 years ago
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A 4.00L flask containing Ne at 25 C and 6.00 atm is joined by a valve to an 8.00 L flask Ar at 25 C and 2.00 atm.
timama [110]

Answer:

P=3.33atm

Explanation:

Hello!

In this case, since know the volume, temperature and pressure of the initial containers, we can compute the moles of each gas prior to the opening of the valve as shown below:

n_{Ne}=\frac{6atm*4L}{0.08206\frac{atm*L}{mol*K}*298.15K} =0.981molNe\\\\n_{Ar}=\frac{2atm*8L}{0.08206\frac{atm*L}{mol*K}*298.15K} =0.654molAr

Next, we add them up to obtain the total moles:

n_T=0.981mol+0.654mol=1.635mol

Now, the total volume:

V_T=4.00L+8.00L=12.00L

Finally, the total pressure is computed by using the ideal gas equation:

P=\frac{1.635mol*0.08206\frac{atm*L}{mol*K}*298.15K}{12.00L}\\\\P=3.33atm

Best regards!

6 0
3 years ago
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