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4 years ago

Need help with this chemistry stoichiometry worksheet any help is appreciated with work shown!

Chemistry

1 answer:

Afina-wow [57]4 years ago

5 0

Answer:

I suggest you study. These can burn up time, so balance the stoichiometry,

Between Oxygen and Propane to yield carbon dioxide.

Aluminum is tricky; Al2O3 is the best choice, especially for the shorter time and what you can learn

Explanation:

You might be interested in

What is the percent composition in chloric acid (HClO3)?

Nuetrik [128]

Total weight = 1 + 35.45 + 3 * 16 = 84.45

H = 1 / 84.45 * 100% = 1.18%
Cl = 35.45 / 84.45 * 100% = 41.98%
O = 48 / 84.45 * 100% = 56.84%

7 0

3 years ago

How many moles of C2H6 in 3.754 x 1023 molecules of C2H6?

ira [324]

Answer:

n=N/NA

n= 3.754×10²³/6.02×10²³

n= 6.24 s

Explanation

since there is number of molecules, make use of Avogadro's constant to get number of moles.

5 0

2 years ago

How much nano3 is needed to prepare 225 ml of a 1.55 m solution of nano3?

andrezito [222]

Answer:

= 29.64 g NaNO3

Explanation:

Molarity is given by the formula;

Molarity = Moles/Volume in liters

Therefore;

Number of moles = Molarity × Volume in liters

= 1.55 M × 0.225 L

= 0.34875 moles NaNO3

Thus; 0.34875 moles of NaNO3 is needed equivalent to;

= 0.34875 moles × 84.99 g/mol

= 29.64 g

5 0

3 years ago

The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is _________

umka2103 [35]

Answer:

$2HNO_3(aq)+Sr(OH)_2(aq)\rightarrow Sr(NO_3)_2(aq)+2H_2O(l)$

Explanation:

Hello,

In this case, since nitric acid is HNO₃ and strontium hydroxide is Sr(OH)₂ we can represent the balanced chemical reaction by equaling the atoms of strontium, nitrogen, oxygen and hydrogen at both reactants and products as shown below:

$2HNO_3(aq)+Sr(OH)_2(aq)\rightarrow Sr(NO_3)_2(aq)+2H_2O(l)$

Best regards.

7 0

3 years ago

Read 2 more answers

A block of metal has a mass of 51.11 g and displaces 71.46 ml of water. Calculate the density of the metal in g/ml.

Damm [24]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of metal = 5.11 g

volume = 71.46 mL

The density of the metal is

$density = \frac{5.11}{71.46} \\ = 0.071508536...$

We have the final answer as

Hope this helps you

8 0

4 years ago