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
insens350 [35]
3 years ago
8

Sodium hydride racts with excess water to produce

Chemistry
1 answer:
romanna [79]3 years ago
8 0

Answer:

0.96g of sodium hydride

Explanation:

Equation of reaction:

NaH + H20 = NaOH + H2

Mass of hydrogen gas produced (m) = PVM/RT

P = 765torr - 28torr = 737torr = 737/760 = 0.97atm, V = 982mL = 982cm^3, M = 2g/mol, R = 82.057cm^3.atm/gmol.K, T = 28°C = 28 + 273K = 301K

m = (0.97×982×2)/(82.057×301) = 0.08g of hydrogen gas

From the equation of reaction

1 mole (24g) of sodium hydride produced 1 mole (2g) of hydrogen gas

0.08g of hydrogen gas would be produced by (24×0.08)/2 = 0.96g of sodium hydride

You might be interested in
Help plssss <br><br> The question is in the picture above
Paul [167]

Answer:

The answer is : A

8 0
3 years ago
Read 2 more answers
What is the molarity of 10g of carbon in a 500L solution?
Zolol [24]

Answer:

Molarity is the number of moles in a liter of a substance.

Molarity= Mole/volume

Mass= 10g

Molar mass of Carbon=12g

To calculate the mole we use the formula: mole= mass/molar mass

Mole = 10g/12g

Mole = 0.83

Molarity= 0.83/500 =0.0017moles per liter

5 0
3 years ago
Can someone help me
noname [10]
From Earth's<span> density we can estimate what elements must compose the </span>Earth; an iron core<span> just happens to estimate </span>Earth's<span> mass the best. Now from energy waves, geologists use seismometers to measure movements in </span>Earth's<span> interior (e.g. Earthquakes), These energy-waves form compressional and shear waves</span>
4 0
3 years ago
If you dispense 40 ml of hexane, but it turns out you only need 5 ml, what should you do with the remainder?
Natasha2012 [34]

After subtracting the volume needed from the volume dispensed, we got a remainder of 35ml

<h3>Subtraction of Numbers</h3>

Given Data

  • Volume of Hexane dispensed = 40ml
  • Volume needed = 5 ml

Let us compute the amount of excess hexane/ the volume that will remain

Remainder = The difference in volume dispensed and the volume needed

Remainder = 40-5

Remainder = 35 ml

The remainder is 35ml

Learn more about subtraction of numbers here:

brainly.com/question/4721701

7 0
2 years ago
Do the number of protons in an atom of an element always equals its atomic weight.
Elenna [48]
No. The number of a protons is not equal to it's atomic weight, instead it is equal to the 'atomic number'
5 0
4 years ago
Other questions:
  • Which method of heat transfer takes place when particles of matter vibrate and collide with each other in direct contact? Conduc
    14·2 answers
  • Convert 575.1 mmHg to atm
    9·1 answer
  • Air pressure is measured in pascals. For a professional American football game, the ball should be inflated to about 90,000 pasc
    13·2 answers
  • When an equation is used to calculate the amount of product that will form during a reaction, the value obtained is called the _
    9·2 answers
  • When the temperature of a sample of neon gas increases, what else increases? Distance between the atoms Kinetic energy of the at
    10·1 answer
  • Of the​ rock's original​ uranium-235 remains. how old is the​ rock
    9·1 answer
  • The energy stored in molecular bonds is called _____.
    12·2 answers
  • What is the most important reason to publish results as part of the scientific process?
    7·2 answers
  • What is the number of electrons in silicon-30
    9·2 answers
  • On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and drop
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!