3 years ago

A published hypothesis:

Chemistry

1 answer:

Yuki888 [10]3 years ago

3 0

2) Should be tested by the scientific community

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All of the following are forms of acid precipitation EXCEPT ________.

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Which term names enzymes in the body that speed up chemical reactions? A. catalysts B. cells C. concentrations D. chloroplasts

vazorg [7]

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3 years ago

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3 years ago

1) Given the balance equation below. Calculate how much Na3PO4 in grams you

juin [17]

Answer:

<u>136.67 g of Na3PO4 i</u>s required to create 100 gram of NaOH.

Explanation:

The balanced equation:

$Na_{3}PO_{4} + 3 KOH \rightarrow 3 NaOH + K_{3}PO_{4}$

1 mole Na3PO4 = 164 g/mole (Molar mass)

1 mole NaOH = 40 g/mole (Molar mass)

Now,

1 mole of Na3PO4 produce = 3 mole of NaOH

164 g/mol of Na3PO4 produce = 3(40) g/mol of NaOH

120 g/mol of NaOH is produced from = 164 g/mol of Na3PO4

1 g/mol of NaOH is produced from =

$\frac{164}{120}$

100 grams of NaOH is produced from =

$\frac{164}{120}\times100$ gram of Na3PO4

calculate,

= 136.67 g

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3 years ago

How many moles would there be in 20.0 g of sodium chloride?

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Answer:

20.0/1 x 1mole/58.44=0.34

(Atomic mass of salt)

Been a minute since I've done this, but this is how I remember doing it, soo..hope this helps!

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3 years ago