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Chemistry

2 answers:

Jobisdone [24]3 years ago

5 0

Answer:

hello,

first one is 25.15

second is 301.55

Explanation:

honestly if you look up on the internet there is a converter to get you your answers

dexar [7]3 years ago

4 0

Answer:

1. 25.19

2. 301.57

Explanation:

it says it's correct...

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Calculate the molarity of the solution to 3 digits.

Lady bird [3.3K]

The correct answer would be 0.254.

8 0

4 years ago

Read 2 more answers

How many grams would 1.00 billion atoms of sulfur weigh

Zielflug [23.3K]

Answer:

$m_S=5.31x10^{-14}gS$

Explanation:

Hello,

In this case, by knowing that we have 1 billion ( 1,000,000,000) of atoms of sulfur, via the Avogadro's number we can firstly compute the moles:

$n_S=1,000,000,000atoms*\frac{1mol}{6.022x10^{23}atoms}\\\\ n_S=1.66x10^{-15}molS$

Then, by using the atomic mass of sulfur (32 g/mol), we can finally compute the mass:

$m_S=1.66x10^{-15}molS*\frac{32gS}{1molS}\\ \\m_S=5.31x10^{-14}gS$

Best regards.

7 0

3 years ago

Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this net ionic equation.CH3COO-+HCO

NARA [144]

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor

The given equilibrium reaction is,

$CH_3COO^-+HCO_3^-\rightleftharpoons CH_3COOH+CO_3^{2-}$

In this reaction, $CH_3COO^-$ and $HCO_3^-$ are act as Bronsted Lowry base and acid respectively and $CH_3COOH$ and $CO_3^{2-}$ are act as Bronsted Lowry acid and base respectively.