3 years ago

Can you help me on this?

1 answer:

4 0

.......,ok first,WHAT THE WORLD THIS THAT!? And this may be how bread formed

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bagirrra123 [75]

I need the options to choose from

4 0

2 years ago

rodikova [14]

Mass of H2C2O4 :

mm = 90.04 g/mol

number of moles : 0.0223 moles

m = n * mm

m = 0.0223 * 90.04

m = 2.007 g

hope this helps!.

5 0

3 years ago

mario62 [17]

I think is 1 and a half km

7 0

3 years ago

algol [13]

The molar concentration of the original HF solution : 0.342 M

Further explanation

Given

31.2 ml of 0.200 M NaOH

18.2 ml of HF

Required

The molar concentration of HF

Solution

Titration formula

M₁V₁n₁=M₂V₂n₂

n=acid/base valence (amount of H⁺/OH⁻, for NaOH and HF n =1)

Titrant = NaOH(1)

Titrate = HF(2)

Input the value :

$\tt 0.2\times 31.2\times 1=M_2\times 18.25\times 1\\\\M_2=0.342$

7 0

2 years ago

ira [324]

I’m pretty sure it’s A.

8 0

2 years ago