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
mixer [17]
3 years ago
8

You are given 3.0 grams of solid sodium to react to pure water which has a molarity of 55.6 M. How many milligrams of H2 can be

produced if you react 6 mL of the water with 3.0 grams of solid sodium.
Na (s) + H2O ------> NaOH (aq) + H2 (g)
Chemistry
1 answer:
serious [3.7K]3 years ago
4 0

Answer:

= 15.51 mL

Explanation:

Here's is the reaction:

2HgO(s) ⇒ 2 Hg(s)+O₂(g)

In this reaction 2mol HgO =  1mol O₂

The molecular weight of HgO = 216.59g

so, 3.0g HgO = 3.0g x 1.00molHgO/216.59gHgO

= 0.0138511 molHgO

The amount of Oxygen follows:

0.0138511 molHgOx1/2= 0.00692555 mol O₂

Now, volume of 1 any gas = 22400mL

so, 0.00692555 mol O₂ x22400mLO₂/1mol O₂

= 15.513232mL O₂

You might be interested in
Which is the FALSE statement about C-14?
slega [8]

The answer is: A


C-14 is not stable and this is the reason why it goes through radioactive decay.

7 0
3 years ago
Read 2 more answers
A substance that can be separated into two or more substances only by a chemical change is
Yuliya22 [10]
<span>A substance that can be separated into two or more substances only by a chemical change is </span><span>known as a </span><span>heterogeneous</span><span> mixture</span>
5 0
3 years ago
What is the mole fraction of methanol in a solution that contains 6.0 mol of methanol and 3.0 mol of water? The formula for meth
Ivenika [448]
The mole fraction of a product is the number of moles of the product divided by the total number of moles of the solution.

Here moles of methanol = 6.0 moles

Moles of solution = 6.0 moles of methanol + 3.0 moles of water = 9.0 moles of solution

Mole fraction of methanol = 6.0 / 9.0 = 0.67

Answer: 0.67  
4 0
3 years ago
Help! 15 Points!<br><br> Science!
Klio2033 [76]
Don't take my word for it but I think it is
1: proteins 
2: energy from the sun, carbon dioxide, and water
3: this one is confusing me but I think it would be nutrients from food and oxygen
4: water
 Again these are attempts I can't prove these
6 0
3 years ago
Read 2 more answers
At what temperature will a solid melt ?
r-ruslan [8.4K]

A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Jimmy's science textbook reflects blue light. What color is the book?
    10·2 answers
  • Which of the following would be a warning sign that information about a weight loss medication is not reliable science?
    8·2 answers
  • Hello guys i wanted to ask if anyone could check my answers please :) 10 points
    10·2 answers
  • A 43.63 gram sample of a hydrate of caseo4 was heated thoroughly in a porcelain crucible, until its weight remained constant. af
    14·1 answer
  • given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters
    8·1 answer
  • What is the actual yield if I reacted 100.0 g of uranium with excess bromine (uranium is the limiting reactant) and had an 83% y
    14·1 answer
  • Which scientist proposed the model of an atom as a solid sphere?
    10·1 answer
  • Why couple use a method of birth control
    12·1 answer
  • Calculate the number of miles of magnesium,chlorine, and oxygen atoms in 5.00 moles of magnesium perchlorate
    11·1 answer
  • How many moles of OH−(aq) (hydroxide ions)are present in the balanced redox reaction?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!