2 years ago

Help me with this please

Chemistry

1 answer:

myrzilka [38]2 years ago

8 0

Explanation:

I can't guess it properly

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3 years ago

Calculate the grams of NaCl (5.5 by mass) in 250 grams of commercial bleach solution

Naddik [55]

Mass of NaCl L 13.75 g

<h3>Further explanation</h3>

Given

The solution of 5.5% by mass

mass of commercial bleach solution : 250 g

Required

mass of NaCl

Solution

Percent mass (% w/w) = percent mass of solute in 100 g mass of solution

Solution = solute + solvent

Solute = NaCl

Solution = Commercial bleach

Can be formulated :

$\tt \%mass(w/w)=\dfrac{mass~solute}{mass~solution}\times 100\%$

Input given values in formula :

$\tt \%mass=\dfrac{mass~NaCl}{mass~commercial~bleach}\times 100\%\\\\5.5\%=\dfrac{mass~NaCl}{250}\times 100\%\\\\mass~NaCl=\boxed{\bold{13.75~g}}$

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3 years ago

How many grams are there in 3.4 x 10^24 molecules of NH3

a_sh-v [17]

Answer:

96g

Explanation:

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2 years ago

Help me with this please ​

Help me with this please