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
Citrus2011 [14]
3 years ago
7

80g of sodium hydroxide reacts with excess sulfuric acid to produce 142g of sodium sulfate. What mass of sodium hydroxide would

be needed in order to make 50g of sodium sulfate?
Chemistry
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:

Mass of sodium hydroxide needed  = 28.2 g

Explanation:

Given data:

Mass of sodium hydroxide = 80 g

Mass of sodium sulfate produced = 142 g

Mass of sodium hydroxide needed = ?

Mass of sodium sulfate produced = 50 g

Solution:

Mass of sodium sulfate produced / Mass of sodium hydroxide = Mass of sodium sulfate produced / x

142 g/ 80 g = 50 g / x

x = 50 g × 80 g / 142 g

x =4000 g/ 142

x = 28.2 g

You might be interested in
Which of the following is NOT the same?
Inessa [10]

All are the same. It equals to the same thing.

4 0
2 years ago
Read 2 more answers
100 points!! Brainliest if correct!!
Nadya [2.5K]
Here is your answer

B. NaCl

_________________
In option A. Na isn't present.
In option C. there are two atoms of Na
So, option B is correct

HOPE IT IS USEFUL
4 0
3 years ago
Read 3 more answers
Which of the following best explains why you sanded the copper wire before burning it? to create less friction between the coppe
artcher [175]

The copper wire was sanded before burning in order to make sure that copper metal was exposed on the surface of the wire.

Answer: B

Explanation

The copper wire when placed in atmosphere without coating leads to oxidation of copper metal with respect to the impurities present in the atmosphere.

As copper is electropositive in nature, so electronegative ions present in the universe will try to react with copper and the copper will react easily with other elements.

So generally copper wire is coated with color or polymer coating.

In this case, the copper wire without any coating is sanded, so that the eddy sheets or polishing materials on friction with copper wire will remove the impurities by the electrostatic law of conservation of charges and charge transfer.

As the impurities are removed when copper wire is sanded, the copper atoms will be exposed on the surface of the wire leading to burning of copper in the copper wire.

8 0
3 years ago
Which resonance structure would most likely create the infrared (IR) spectrum for the equilibrium geometry calculation of SCN −
rjkz [21]

Answer:

Resonance Structures for SCN-:[S-C N]-

Resonance StructureEnergy (kJ/mol)[S-C N]--23.00[S=C=N]

3 0
3 years ago
What is the pH of a 6.4*10-10 m oh- solution?
egoroff_w [7]
PH: 4.80617997
pOH: 9.1938200
[H+]: 1.562
[OH-] 6.4E-10
Acid
8 0
3 years ago
Other questions:
  • In a step-down transformer, which side has more wire loops?
    15·2 answers
  • 78.5 mol of P4O10 contains how many moles of P?
    9·1 answer
  • How many H atoms are in 6.43g x 10^24 molecules of water
    13·1 answer
  • How is the periodic table helpful in determining the types of bonds an element will form?
    9·1 answer
  • While David was riding his bike around the circular cul-de-sac by his house he wondered if the constant circle motion was having
    11·1 answer
  • Q82. Liquid petrol does not ignite spontaneously when exposed to the air because
    10·1 answer
  • If aluminum has a mass of 22.3 g, how many liters of oxygen gas are required at STP?
    13·1 answer
  • I need help! Please give me an answer
    7·2 answers
  • QUESTION 3 and 4 please
    10·2 answers
  • Name the following alkane:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!