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Pie
3 years ago
13

Jose's lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error tha

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
4 0

Explanation:

Can you please make the question more precise..

Thanks..

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Which of the following statements about states of matter are not true
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ABOUT IT
MaRussiya [10]

Answer:

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5 0
3 years ago
Which gas will effuse at the rate closest At a particular pressure and temperature, nitrogen gas effuses at the rate of 79mLs. U
Contact [7]

Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.

Solution :

According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.

R\propto \sqrt{\frac{1}{M}}

or,

(\frac{R_1}{R_2})=\sqrt{\frac{M_2}{M_1}}       ..........(1)

where,

R_1 = rate of effusion of nitrogen gas = 79mL/s

R_2 = rate of effusion of sulfur dioxide gas = ?

M_1 = molar mass of nitrogen gas  = 28 g/mole

M_2 = molar mass of sulfur dioxide gas = 64 g/mole

Now put all the given values in the above formula 1, we get:

(\frac{79mL/s}{R_2})=\sqrt{\frac{64g/mole}{28g/mole}}

R_2=52mL/s

Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.

4 0
3 years ago
What feature of a chemical equation is used to balance the equation and make sure it obeys the law of conservation of mass?
taurus [48]

Answer:

b) coefficient

Explanation:

Refer to this example:

CH4  +2  O2  →  CO2+  2  H2O

2 is used as a coefficient in this chemical equation.

5 0
3 years ago
Read 2 more answers
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