3 years ago

Write the name of the element that corresponds to each of the following symbols.

2 answers:

8 0

Kr= krypton
K= potassium
C=carbon
En= neon
Si= silicon
Au= gold
Ni= nitrogen
Br= berillium
Mg=magnesium
Mn= mangenese
Al: aluminum

ivolga24 [154]3 years ago

8 0

Kr= Krypton
K= potassium
C= carbon
Ne= neon
Si= silicon
Zr = zirconium
Sn= tin
Pt = platinum
Na = sodium
Al= aluminium
P = phosphorus
Cu= copper
Ag = silver
Mn= manganese
Au= gold
Mg = magnesium
Ni = nickel
Br = Bromine
Hg =Mercury

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The name of the compound is potassium bromate.

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Mass of potassium = 4.628 g

Moles of potassium = $\frac{4.628 g}{39 g/mol}=0.1187 mol$

Mass of bromine = 9.457 g

Moles of bromine = $\frac{9.457 g}{80 g/mol}=0.1182 mol$

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Bromine;

$\frac{0.1182 mol}{0.1182 mol}=1.0$

Oxygen ;

$\frac{0.3551 mol}{0.1182 mol}=3.0$

The empirical formula of the compound is = $KBrO_3$

The name of the compound is potassium bromate.

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