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3 years ago

Why does an "acid spill kit" often contain baking soda?

Chemistry

2 answers:

Bond [772]3 years ago

7 0

Baking soda neutralizes the acid so D

nordsb [41]3 years ago

7 0

Answer:

D) Baking soda is a weak base and will neutralize the acid.

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Help me with these questions.

Aloiza [94]

1) C
2) B
3) A/B not sure
4) C I think

5 0

3 years ago

A gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 24

Setler79 [48]

Answer:

For Part A: The partial pressure of Helium is 218 mmHg.

For Part B: The mass of helium gas is 0.504 g.

Explanation:

For Part A:

We are given:

$p_{CO_2}=245mmHg\\p_Ar}=119mmHg\\p_{O_2}=163mmHg\\P=745mmHg$

To calculate the partial pressure of helium, we use the formula:

$P=p_{CO_2}+p_{Ar}+p_{O_2}+p_{He}$

Putting values in above equation, we get:

$745=245+119+163+p_{He}\\p_{He}=218mmHg$

Hence, the partial pressure of Helium is 218 mmHg.

For Part B:

To calculate the mass of helium gas, we use the equation given by ideal gas:

PV = nRT

or,

$PV=\frac{m}{M}RT$

where,

P = Pressure of helium gas = 218 mmHg

V = Volume of the helium gas = 10.2 L

m = Mass of helium gas = ? g

M = Molar mass of helium gas = 4 g/mol

R = Gas constant = $62.3637\text{ L.mmHg }mol^{-1}K^{-1}$

T = Temperature of helium gas = 283 K

Putting values in above equation, we get:

$218mmHg\times 10.2L=\frac{m}{4g/mol}\times 62.3637\text{ L.mmHg }mol^{-1}K^{-1}\times 283K\\\\m=0.504g$

Hence, the mass of helium gas is 0.504 g.

6 0

3 years ago

Which three elements are combined in lithium sulfate ?

Helga [31]

Answer:

jsidndnxjxixdjdbsjsjdidnsjdjdidndjd

8 0

3 years ago

Valence electrons are important because these are the only electrons involved with an atom's

Salsk061 [2.6K]

Valence electrons are important because these are the only electrons involved with an atom's chemical reactivity.

3 0

3 years ago

What is the unit for IMA

Tatiana [17]

Answer:

Newton Joules

Explanation:

8 0

3 years ago