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kolbaska11 [484]
3 years ago
14

What is the mass of 16.3 l of helium gas?

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
5 0
 4.003 is the mass of helium gas


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What are the four abbreviations that are used to show the states of substances in chemical reactions?
Reil [10]
Answer: s (solid), l (liquid), g (gas), aq (Aqueous)

Aqueous is for when something has dissolved in water and given the symbol aq
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How many moles of NaCl are needed to make 10.0L of a 5 M solution of<br> Salt water?*
vesna_86 [32]

Answer: 50 mol

Explanation:

Molarity=\frac{Moles -of -solute}{liters -of -solution}

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Do plants uptake phosphorus as P?
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What is the difference between a polar and a nonpolar bond?And how can i figure out if its polar or nonpolar in a bond question?
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5 0
3 years ago
Read 2 more answers
A 25.00 mL sample of of a sulfurous acid solution is completely neutralized using 17.12 mL of 0.13 M sodium hydroxide. What is t
Kryger [21]

Answer:

0.0445 M is the initial concentration of sulfurous acid.

Explanation:

H_2SO_3+2NaOH\rightarrow Na_2SO_3+2H_2O

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_3

are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=2\\M_1=?\\V_1=25.00mL\\n_2=1\\M_2=0.13 M\\V_2=17.12 mL

Putting values in above equation, we get:

2\times M_1\times 25.00 mL=1\times 0.13 M\times 17.12 mL

x=\frac{1\times 0.13 M\times 17.12 mL}{2\times 25.00}=0.0445 M

0.0445 M is the initial concentration of sulfurous acid.

8 0
3 years ago
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