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Sladkaya [172]
3 years ago
12

Use the reaction shown l to answer these questions.

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
8 0

Answer:

16.8dm3

Explanation:

2 moles of CO gives 1 mole of N2

2 moles of CO= 2* 28= 56g

1 mole of N2 = 1* 22.4dm

56g of CO gives 22.4dm3 of N2

42.7 of CO will give> (42.7*22.4)/56

=16.8dm3

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Select the correct empirical formula for each molecular formula given.
Neko [114]

Answer: CH2O

Explanation:

this formula is glucose, as you said the molecular formula is C6H12O6 because an actual molecule of glucose contains that many atoms of each element

an empirical formula is the simplest whole-number ratio of a formula (ex: 1-2-1)

3 0
3 years ago
A lab director asks two students, Lydia and Damien, to each select a bottle of a concentrated weak base. When they reach the cab
algol13

Lydia and Damien should select the bottle of weak base with high molarity(M)

<h3>Further explanation</h3>

According to Arrhenius, Base is a compound which in water releases OH- ions

Electrolytes (acids or bases) with a small degree of ionization are classified as weak electrolytes

If two students, Lydia and Damien, select each bottle of a concentrated weak base, then a guide can be chosen to choose some of the solutions available in the lab :

  • Base compounds are usually known from their names ending in hydroxide suffixes such as NaOH, sodium hydroxide
  • The weak base will be partially ionized in water because the ionization degree is close to 0 or less than 1
  • If there is a Kb value (base ionization constant), then this shows the strength of the base. The greater the value of Kb, the greater the base strength
  • If there are some weak bases, then Lydia and Damien choose the highest concentration, usually indicated by the value of Molarity (M)

Because no choice solution is included, the weak base example is:

Ammonia (NH₃)

Aluminum hydroxide (Al (OH)₃)

Copper (II) hydroxide Cu (OH)₂

Mercury (II) hydroxide Hg (OH)₂

<h3>Learn more</h3>

the Brønsted theory

brainly.com/question/1916011

brainly.com/question/8921679

base would not effectively deprotonate acetylene  

brainly.com/question/5613072  

Keywords : weak base, select a bottle, chemical solutions

#LearnWithBrainly

8 0
3 years ago
When 13.6 grams of kcl are dissolved in enough water to create a 180-gram solution, what is the solution's concentration, expres
bonufazy [111]
7.6% KCl I had the same problem on my semester exam for summer school
8 0
4 years ago
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Which would be best categorized as heat transfer by conduction? A) Wearing a white shirt to stay cool on a summer day. B) Warmin
erik [133]

Answer:

Conduction is heat transfer through the direct contact of two subjects. The best example of this would be C, because it is the direct transfer of heat from the lightbulb to your hand. :)

6 0
3 years ago
A student takes a measured volume of 3.00 M HCl to prepare a 50.0 mL sample of 1.80 M HCL. What volume of 3.00 M HCI
netineya [11]

To solve the question you use the following formula:

concentration (1) × volume (1) = concentration (1) × volume (1)

3 M ×  volume (1)  = 1.8 M × 50 mL

volume (1)  = (1.8 M × 50 mL) / 3 M = 30 mL

8 0
4 years ago
Read 2 more answers
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