1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
3 years ago
14

How many atoms of hydrogen are in 0.56 mol of (NH4)2SO4

Chemistry
1 answer:
BabaBlast [244]3 years ago
7 0
<h2>Answer:2.7\times 10^{24} atoms</h2>

Explanation:

The given formula of the compound is (NH_{4})_{2}SO{4}

The formula says

Every mole of (NH_{4})_{2}SO{4} contains 8 moles of atoms of hydrogen.

Given that number of moles of compound is 0.56

So,the number of moles of hydrogen atoms present is 0.56\times 8=4.48

Since each mole has 6.022\times 10^{23} atoms,

4.48 moles has 4.48\times 6.022\times 10^{23}=2.7\times 10^{24} atoms.

You might be interested in
A sample contains 16. 75 g of the radioisotope U-236 and 50. 25 g of its daughter isotope, Th-232. How long did it take for deca
garri49 [273]

The time taken for the isotope to decay is 46 million years.

We'll begin by calculating the number of half-lives that has elapsed. This can be obtained as follow:

  • Original amount (N₀) = 50.25 g
  • Amount remaining (N) = 16.75
  • Number of half-lives (n) =?

2ⁿ = N₀ / N

2ⁿ = N₀ / N

2ⁿ = 50.25 / 16.75

2ⁿ = 3

Take the log of both side

Log 2ⁿ = 3

nLog 2 = Log 3

Divide both side by log 2

n = Log 3 / Log 2

n = 2

Finally, we shall determine the time.

  • Half-life (t½) = 23 million years
  • Number of half-lives (n) = 2
  • Time (t) =?

t = n × t½

t = 2  × 23

t = 46 million years

Learn more about half-life: brainly.com/question/25927447

8 0
3 years ago
Read 2 more answers
The matter through which waves travel is called a/an​
sweet [91]

Answer:

A medium.

<h3>Explanation:</h3>

It's the material the wave is travelling through.

5 0
3 years ago
1. A student attempts to make a saline solution by adding salt to water. How much water did
dexar [7]

111.1 mL of water

Explanation:

Weight per volume concentration (w/v %) is defined as

weight per volume concentration = (mass of solute (g) / volume of solution (mL)) × 100

volume of solution = (mass of solute × 100) / weight per volume concentration

volume of solution = (1 × 100) / 0.9 = 111.1 mL

volume of water = volume of solution = 111.1 mL

Learn more about:

weight per volume concentration

brainly.com/question/12721794

#learnwithBrainly

8 0
3 years ago
Read the following chemical equations.
lora16 [44]

This problem is providing two reduction-oxidation (redox) reactions in which the oxidized and reduced species can be identified by firstly setting the oxidation number of each element:

Reaction 1: 2K⁺I⁻ + H₂⁺O₂⁻  ⇒2K⁺O⁻²H⁺ + I₂⁰

Reaction 2: Cl₂⁰ + H₂⁰ ⇒ 2H⁺CI⁻

Next, we can see that iodine is being oxidized and oxygen reduced in reaction #1 and chlorine is being reduced and hydrogen oxidized in reaction #2 because the oxidized species increase the oxidation number whereas the reduced ones decrease it.

In such a way, the correct choice is C.

Learn more:

  • (Redox reactions) brainly.com/question/13978139

8 0
2 years ago
Copper produces a green flame test. When is the green light emitted?​
belka [17]

Answer: When you burned the skewer tip coated with copper sulfate the green light is emitted

Explanation:

when the copper is burned it makes a green light

8 0
3 years ago
Other questions:
  • A reaction releases 489.34 J of heat how many calories of heat is that equal to 1 cal equals 4.186 J
    12·1 answer
  • Two lab assistants measured a metal rod. One reported the measurement as 250 cm, and the other measured it as 250. cm. These mea
    9·1 answer
  • Why does most chemical weathering only happen on the outer surface rock?explain.
    11·1 answer
  • What are four signs a chemical reaction has taken place?
    8·1 answer
  • Rank the following quantities from smallest to largest: 5,200, dozen, pair,gross,ream.
    13·1 answer
  • Arenediazoniums can undergo electrophilic aromatic substitutions with a wide variety of activated aromatic compounds to yield ne
    5·1 answer
  • How do you use chromatography to separate mixtures
    8·1 answer
  • How many calories are required to boil 75 grams of water not in sig figs
    14·1 answer
  • A stainless steel knife has a mass of 849 grams. It has a density of 7.86 g/cm³. What is the volume of the knife?
    8·1 answer
  • What is the numbe of atoms in oxygen?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!