The molarity of the solution will be higher.
Explanation:
Standarization is a process in which the molarity of the solution is made to be known. The concentration determined is exact by this process.
To standarize the solution of NaOH, first the acid used for titration is taken in a flask say 10 ml, indicator and water (in this case 50 ml). Then biuret is filled with NaOH of known molarity and initial volume is noted.
The air bubble not taken notice of in this case will lower the volume as molarity is inversely proportional to volume. When volume decreases molarity increases and vice-versa.
Formula used is
molarity =
The bubble will be formed with minimum volume thus volume is also lowered.
Lead is more ductile than iron. The correct option is A. Lead is more ductile than iron
<h3>Young's modulus </h3>
From the question, we are to determine the statement which is true
First, we will define the term <em>Young's modulus </em>
<em>Young's modulus</em> is a measure of the stiffness of an elastic material. It is also given as the ratio of <u>stress </u>to <u>strain</u>. That is,
The greater the modulus, the stiffer the material.
Materials with low Young's modulus tend to be <u>ductile </u>and materials with high Young's modulus tend to be <u>brittle</u>
Since the Young's modulus value for iron is higher than that of lead, then iron is <em>stiffer </em>than lead.
Thus, lead is more ductile than iron. The correct option is A. Lead is more ductile than iron
Learn more on Young's modulus here: brainly.com/question/26660981
During a combustion reaction the carbon in a hydrocarbon compound is paired with Oxygen (O2) in the air to form Carbon-Dioxide (CO2), whilst the Hydrogen too pairs with Oxygen to form water vapour (H2O). Heat is also produced during this reaction.
The correct answer is <span>D) centrifuge the mixture because the substance with the highter density will be pulled to the bottom
When things spin around, like a centrifuge, the centripetal force draws things towards the middle. If you make it a bit like a spiral and put it sideways, then the denser thing will go to the bottom while the less dense ones will remain on the outside. </span>
Answer:
1.8g
Explanation:
Initial volume = 43.5ml
Final volume = 49.4ml
Mass = 10.88g
Density = ?
Volume = Final volume - initial volume
= 49.4 - 43.5
= 5.9ml
Density = Mass/volume
Density = 10.88/5.9
= 1.8g/ml