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
MAXImum [283]
3 years ago
9

Value 1: 45.58g

Chemistry
1 answer:
Rama09 [41]3 years ago
7 0

Answer:

<h2>Percentage error is a measurement of the discrepancy between an observed and a true, or accepted value .</h2>

Explanation:

<h3 />
You might be interested in
Which of the following is the correct name for the compound mgbr2? magnesium bromate magnesium bromide magnesium dibromide magne
Sergeeva-Olga [200]
Correct answer is magnesium bromide. This is an ionic compound with metal forming a positive ion - K+ and halogen forming a negative ion - Br-. When group 7 element form ions they have a suffix -ide. Bromine is the element and when it forms a negative ion bromine is called bromide with the suffix.
Magnesium gives 2 electrons and bromine can take only 1 electron, therefore 2 bromine atoms are needed. Therefore magnesium forms ionic bonds with 2 bromine atoms.
The compound is called magnesium bromide
6 0
3 years ago
Mass is measured in ____________, and weight is measured in ______________. A) kilograms, grams B) grams, kilograms C) newtons,
frez [133]
I'm pretty sure the answer is letter D.
8 0
3 years ago
Read 2 more answers
What is the pH of 0.30 M ethanolamine, HOCH2CH2NH2, (Kb = 3.2 x 10−5)?
Dmitry [639]

Answer:

pH= 11.49

Explanation:

Ethanolamine is an organic chemical compound of the formula; HOCH2CH2NH2. Ethanolamine, HOCH2CH2NH2 is a weak base.

From the question, the parameters given are; the concentration of ethanolamine which is = 0.30M, pH value= ??, pOH value= ??, kb=3.2 ×10^-5

Using the formula below;

[OH^-]=√(kb×molarity)----------------------------------------------------------------------------------------------------------(1)

[OH^-] =√(3.2×10^-5 × 0.30M)

[OH^-]= √(9.6×10^-6)

[OH^-]=3.0984×10^-3

pOH= -log[OH^-]

pOH= -log 3.1×10^-3

pOH= 3-log 3.1

pH= 14-pOH

pH= 14-(3-log3.1)

pH= 11+log 3.1

pH= 11+ 0.4914

pH= 11.49

8 0
3 years ago
KMnO4<br><br> Assign oxidation numbers to each element in this compound.
zysi [14]

K=+1

Mn= +7

O= -2

That’s it!!!

8 0
3 years ago
Which stament about energy is mostly correct
klasskru [66]
I would say C is the most correct. 
In D it depends on what water source you're using. Let's say it is a waterfall, then the source of the water (melting ice or a lake) may disappear in the future. 
If you're using underwater "windmills" placed in the ocean, then you would expect it to last a while as the ocean will not disappear in the near future. 
6 0
3 years ago
Other questions:
  • The solvent is usually referred to as the component of a solution which is present as
    5·2 answers
  • The four tastes are:<br> bitter<br> sour<br> fishy<br> salty<br> fruity<br> sweet
    8·1 answer
  • What is the mass in 6.34x10^23 molecules of calcium chloride
    12·1 answer
  • PLEASE HELP ME ILL GIVE YOU A LOT OF POINTS
    9·1 answer
  • Dogs use the same glycolysis and cellular processes as humans use to produce ATP. A young dog has never had much energy. He is b
    8·1 answer
  • Which of the following samples will have the greatest volume at STP?
    12·1 answer
  • How many moles is 573.28 g of AgCl?<br><br> A. 3 mol<br> B. 5 mol<br> C. 4 mol<br> D. 2 mol
    9·1 answer
  • Correct way for calculating atomic mass
    15·1 answer
  • 3. as a substitution reaction occurs, the number of electrons shared between
    6·1 answer
  • A reaction that occurs in the internal combustion engine isN₂(g) + O₂(g) ⇄ 2NO(g) (a) Determine ΔH° and ΔS° for the reaction at
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!