2 years ago

Fe(NO3)3 Percent composition

Chemistry

1 answer:

Scilla [17]2 years ago

5 0

Answer:

Fe: 23.1%

N: 17.4%

O: 59.5%

Explanation:

You take the grams that each weigh on the periodic table and add it all up. Afterward you create fractions of each over the whole. (Example: Fe/Fe+N+O) then you divide and turn that decimal into a percentage.

You might be interested in

How do you Convert 19mL to pL?

s2008m [1.1K]

Picoliter is a unit of measurement for liquids.

One picoliter = 1×10⁻⁹ mililiters

So:

19 mL ---- x pL

1×10⁻⁹ mL ---- 1 pL

1×10⁻⁹x = 19

x = 1,9 × 10¹⁰ pL

or 19,000,000,000 pL

Answer: 1.9 × 10¹⁰ pL

7 0

1 year ago

Muscles need a stimulus from which to of the following to "tell" them contract? A. A muscle call B. The skeleton C. A nerve cell

kompoz [17]

The answer is C a nerve cell

4 0

3 years ago

What happens to the sound wave in echolocation?

Andrei [34K]

Answer: Reflected :)

5 0

3 years ago

How many sucrose molecules will be in 250 grams

sasho [114]

<h2>Answer:</h2>

We will need to know Avogadro's number and the molar mass of sucrose for this problem to do dimensional analysis.

Avogadro's number: 6.022 × 10²³ molecules
Molar mass of sucrose: 342.2965 g/mol

250g × $\frac{1 mol}{342.297g}$ × $\frac{6.022 * 10^{23} molecules}{1 mol}$ = 4.398 molecules

There are <em>4.398 sucrose molecules </em>in 250 grams of sucrose.

6 0

3 years ago

When a substance condensed, what happens to the mass? (4 points)

kogti [31]

I think it 's B hope it helps

4 0

2 years ago