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4 years ago

How many grams of NH3 will have the same number of molecules as 26.2 g of C6H?

Chemistry

1 answer:

Effectus [21]4 years ago

3 0

Answer: 2 grams

Explanation:

chemical formula of C6H:

C6H

relative atomic mass of

C:12

H:1

C6:72

H1:12

relative formula mass of

C6H1=73

molar mass of glucose:

73g

the molar mass is the mass of one mole of a substance.

26.2g

of C6H there are

26.2 divide by 73g moles present.

there are 0.358 or 35.8*10-1

I gram of NH3 is 17.03052

2 grams of NH3 is 35

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How many grams of water can be produced from 4.6 grams of Hydrogen and 7.3 grams of Oxygen?

12345 [234]

Answer:

The answer to your question is 8.21 g of H₂O

Explanation:

Data

mas of water = ?

mass of hydrogen = 4.6 g

mass of oxygen = 7.3 g

Balanced chemical reaction

2H₂ + O₂ ⇒ 2H₂O

Process

1.- Calculate the atomic mass of the reactants

Hydrogen = 4 x 1 = 4 g

Oxygen = 16 x 2 = 32 g

2.- Calculate the limiting reactant

Theoretical yield = H₂/O₂ = 4 / 32 = 0.125

Experimental yield = H₂/ O₂ = 4.6/7.3 = 0.630

From the results, we conclude that the limiting reactant is Oxygen because the experimental yield was higher than the theoretical yield.

3.- Calculate the mass of water

32 g of O₂ ---------------- 36 g of water

7.3 g of O₂ --------------- x

x = (7.3 x 36) / 32

x = 262.8 / 32

x = 8.21 g of H₂O

4 0

4 years ago

What causes the seasonal changes viewed in the night sky?

jonny [76]

Answer:

If you look at the night sky different

times of the year you see different

constellation.This change due to the

motion of the earth in it's orbit around

the sun.The shift of the sky is really

the motion of the earth around the sun.

Explanation:

Hope it helps

8 0

3 years ago

Read 2 more answers

Answer this please!!!

zavuch27 [327]

Answer:

Explanation:

7 0

2 years ago

Read 2 more answers

Consider this reaction: 6 CO2 + 6 H2O + light equation C6H12O6 + 6 O2 If there were 2.38 x 102 g of H2O, 18.6 moles of CO2, and

alisha [4.7K]

H₂O would be the limiting reactant.

Balanced chemical equation:

6CO₂ + 6H₂O + light equation → C₆H₁₂O₆ + 6O₂

The amount of product that can be created is constrained by the reactant that is consumed first in a chemical reaction, commonly referred to as the limiting reactant (or limiting reagent).

Given

No. of moles of CO₂ = 18.6

Mass of H₂O = 2.38 × 10² g = 238g

No. of moles of H₂O = Given mass/ Molar mass

= 238 / 18 = 13.22 moles

Moles of H₂O = 13.22

According to the balanced chemical equation

6 moles of CO₂ react with 6 moles of H₂O

So the reactant that has less number of moles will be consumed first.

As the No. of moles of H₂O < No. of moles of CO₂

So, H₂O is the limiting reactant with 13.22 moles.

Hence, H₂O would be the limiting reactant.

Learn more about limiting reactant here brainly.com/question/14222359

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7 0

2 years ago

A student is investigating the pH of a substance. The pH of the unknown substance is 5.4. Which of the following substances is t

zimovet [89]

Answer:

<u><em>Substance A.</em></u>

Explanation:

pH is a measure of the concentration of H₃O⁺ ions in a solution.

It is defined as:

$pH=\log \dfrac{1}{[H_3O^+]}=-\log [H_3O^+]$

For the given substances

Sustance [H₃O⁺] pH = - log [H₃O⁺]

A 4×10⁻⁶ -log (4×10⁻⁶) = 5.4 ← answer

B 6×10⁻⁷ -log (6×10⁻⁷) = 6.2

C error - - - - - -

D 1.3×10⁻¹ -log (1.3×10⁻¹) = 0.89

Thus, the unknown substace most likely is A.

3 0

3 years ago