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The titration of 22.30 mL
mL of HCl
HCl solution of unknown concentration requires 12.96 mL
mL of a 0.200 M
M NaOH
NaOH solution to reach the equivalence point. What is the concentration of the unknown HCl
HCl solution in M
M?
Express your answer in moles per liter to three significant figures.
How should a qualitative problem be stated?
Why is it said that the role of literature review in qualitative researches is not entirely defined?
During the Revolutionary War, the American colonies could not raise enough tax revenue to fully fund the war effort. To make up the difference, the colonies decided to print more money. Printing money to cover expenditures is sometimes referred to as an inflation tax. Who do you think is being taxed when more money is printed? Why?
An electric heater is to be made from a
nichrome wire. Nichrome has a Resistivity of 1.0*10^-6 ohm'sm
at the operating temperature of
the heater. The power of the heater is 60W
when the potential difference across its
terminals is 12V. Calculate the length of the
wire of diameter 0.30mn required for the
heater.
A group of students got the following scores in an achievement test: 9 12 15 18 21 and 24. Consider sample size of 3 that can be drawn from this population. And construct a sampling distribution of the resulting sample means
Question #173223 in Physics
Given
Mass(a) = Mass(b)
V(a)1 = 6.2 m/s
V(a)2 = final velocity of the cue ball
V(b)1 = 0 m/s
V(b)2 = final velocity of the billiard ball
angle deflected of the billiard ball = 45° from the horizontal
x = angle deflected of the cue ball from the horizontal
6.2 m/s = (Va2){cos(x) + sin(x)}
In the x-direction
6.2 m/s + 0 m/s = (Va2)(cos x) + (Vb2)(cos 45)
The direction of the cue and billiard balls are the same because of the law of inertia.
In the y-direction
0 m/s + 0 m/s = (Va2)(sin x) + (-Vb2)(cos 45)
The final velocity of the billiard ball in the y-direction is negative because of the difference in the y-direction between the cue and billiard balls.
If we use substitution and elimination methods for two equations we can find 6.2 m/s = (Va2){cos(x) + sin(x)}.
However, I am having difficulty in the next sequence. In which part am I wrong? What is the solution? Do we have to use the formula of coefficient of restitution? I need your help. Thank you.
You have a 3-year-old child at your service who is very interested in playing with and reading books about dinosaurs.
Identify the learning framework applicable, and the learning outcome most applicable within this Framework. In your response also include three (3) learning strategies you could use to facilitate the child’s learning.
While working at a service you will be required to identify and use the curriculum framework that is applicable to your service, as well as the learning outcomes within it. Read the following scenarios and respond:
At your service you have a 12-year-old child who you wish to support with their wellbeing. Identify the curriculum framework, and the learning outcome that would use to inform you and also give three strategies you could apply to do so.
in the BaCI2 (aq)+Na2SO4(aq)Ba
#339914 on Dec 2023