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goblinko [34]
3 years ago
6

If 72^x=26, what is the value of x?

Chemistry
1 answer:
stepan [7]3 years ago
7 0
X equals <span>2.76923076923</span>
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3. Methane (CH4) behaves as an ideal gas under standard temperature and pressure conditions. What volume is occupied by 1 kg of
AlekseyPX

Answer:

1711.11L

Explanation:

Given parameters:

Mass of methane = 1kg = 1000

Temperature of gas = 35°C

Pressure of the gas = 0.9atm

Converting to the temperature to kelvin, we have:

               35+ 273 = 308k

Solution

From the given parameters, we can solve this problem using the ideal gas equation which is combination of the gas laws. It is expressed below:

                                         PV = nRT              .......................(i)

Where P is the pressure of the gas

             V is the volume of the gas

             n is the number of moles

             R is the gas constant

             T is the temperature

Now, from the above parameters, we have two unknowns which are n and V.

To find the number of moles n, we use the expression below:

         number of moles = \frac{mass}{molar mass}

        molar mass of methane = 12 + (4x1) = 16g/mol

       Number of moels of methane =  \frac{1000}{16} = 62.5mole

Now that we know the number of moles, we can make the unknown Volume the subject of the formula:

                     V = \frac{nRT}{P}

                     V =  \frac{62.5 x 0.082 x 308}{0.9} = 1711.11L

7 0
3 years ago
1. Three quantum numbers are derived from Schrodinger’s equation that describe the probability of finding an electron around a n
Alenkasestr [34]

Answer:

Tenant farming is an agricultural production system in which landowners contribute their land and often a measure of operating capital and management, while tenant farmers contribute their labor along with at times varying amounts of capital and management.

Explanation:

4 0
3 years ago
Which best describes the total mass of a sample of water when it condenses
lubasha [3.4K]

Answer:

Its C I hopefully help you

4 0
3 years ago
Read 2 more answers
the radius of magnesium atom is 0.160nm. the radius of a magnesium ion is 7.2x 10^-11m. explain the difference in size between t
Allushta [10]

Answer:

during reaction magnesium lises ions.

Explanation:

magnesium reacts by losing two ions which makes it smaller in size.

8 0
3 years ago
Uranium-232 has a half-life of 68.8 years. After 344.0 years, how much uranium-232 will remain from a 100.0-g sample?
amm1812

Answer:  3.13 g

Explanation:

Radioactive decay follows first order kinetics.

Half-life of uranium-232 = 68.8 years

\lambda =\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{68.8}= 0.010072674 year^{-1}

N=N_o\times e^{-\lambda t}

N = amount left after time t

N_0 = initial amount

\lambda = rate constant

t= time

N_0 = 100 g, t= 344 years, \lambda=0.010072674 years^{-1}

N=100\times e^{- 0.010072674 years^{-1}\times 344 years}

N=3.13g


8 0
3 years ago
Read 2 more answers
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