3 years ago

The track along which electricity flows is called a: fuse circuit switch

Chemistry

1 answer:

Pavel [41]3 years ago

4 0

It is called a circuit.

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A certain gas is present in a 15.0 L cylinder at 2.0 atm pressure. If the pressure is increased to 4.0 atm the volume of the gas

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Answer:

Ki = 30atmL

Kf = 30atmL

Explanation:

The following data were obtained from the question:

V1 (initial volume) = 15.0L

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0.32 L of HNO3 is titrated to equivalence using 0.12 L of 0.2 M NqOH. What is the concentration of the HNO3

fenix001 [56]

Answer:

$M_{acid}=0.075M$

Explanation:

Hello!

In this case, since the reaction between NaOH and HNO3 is:

$NaOH+HNO_3\rightarrow NaNO_3+H_2O$

Whereas there is a 1:1 mole ratio between the acid and base, thus, we can write:

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In such a way, solving for the concentration of the acid, HNO3, we obtain:

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$M_{acid}=\frac{0.12L*0.2M}{0.32L}\\\\ M_{acid}=0.075M$

Best regards!

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