Practically: Add 1.66 ml of my 0.3M lemonade to a 15 ml microcentrifuge tube. Add 3.33 ml of your diluent (water, in this case) to bring your volume up to 5 ml. Mix your solution either by vortexing or by pipetting up and down with your pipetteman. Let's make sure you got this concept by answering a question below. I have made 15 ml of 200 mM CaCl2 stock and need to make 40 ml of 50mM for my experiment. How much of my concentrated stock solution (in milliliters) and how much water do I need to mix to make the 40 ml of 50mM CaCl2

Answer:

We would need 10 mL of the concentrated CaCl₂ stock solution, and 30 mL of water.

Explanation:

To solve the question asked we can use the C₁V₁=C₂V₂ equation, where:

We solve for V₁:

We would need 10 mL of the concentrated CaCl₂ stock solution, and (40-10) 30 mL of water.

HELP! URGENT Which of the following best states the relationship between erosion and deposition?

A.
When the energy transporting sediments diminishes, the sediments settle in a low-lying area; therefore, deposition always follows erosion.
B.
When the energy transporting sediments diminishes, the sediments settle in a low-lying area; therefore, erosion always follows deposition.
C.
When rock is broken down into sediments, the sediments are eventually transported to another location; therefore, deposition is a form of erosion.
D.
When rock is broken down into sediments, the sediments are eventually transported to another location; therefore, erosion is a form of deposition.

For the question, "How does music affect plant growth?", what is the dependent
variable?
Plant growth
Type of music
Volume of music
Type of plant

3. Many phones have batteries made of lithium. Why do
you think engineers decided to use lithium to make
these batteries?

A chemical equation is balanced when the number of each
type of ____ is the same on both sides of the equation.

Can you guys please help me, this is due tonight and it counts for marks! I will really appreciate it if you guys can answer one of the thermometer question! (This is urgent)

If AB = 5 inches and AD = 8, find BD. Round to the nearest tenth if necessary.

WILL GIVE BRAINLIEST

How much energy is required to remove a neutron from the nucleus of an atom of carbon-13?

as earth cooled and formed a planet, LESS dense elements and compounds separated and formed layers around a DENSE core. Is this true or false?

Using the equation below, how many liters of water can be made from 7.6 L of oxygen gas at STP?

Argon has three naturally-occurring isotopes: 99.6% of 40Ar, with an atomic weight of 39.9624 amu, 0.337% of 36Ar, with an atomic weight of 35.9676 amu, and 0.063% of 38Ar, with an atomic weight of 37.9627 amu. Calculate the average atomic weight of Ar. Round off the answer to six significant figures. Do not include the units.

HELPPPPP PLEASE!!!

What heats the mantle?

A.radiation in the crust heats the mantle through convection

B.convection in the crust heats the mantle through conduction

C.radiation in the core heats the mantle through conduction

D.convection in the core heats the mantle through conduction

A sample of a mixture of salt and sugar has a total mass of 0.8920 g. If the sample contains 0.0982 g of salt, what percent of the sample is sugar?

How does the average reaction rate differ from an instantaneous reaction rate?
a) The average reaction rate is how quickly the reaction proceeds at a specific time. An instantaneous reaction rate is how quickly the reaction proceeds over time.

b) The average reaction rate is how quickly the reaction proceeds over time considering the reactants. An instantaneous reaction rate is how quickly the reaction proceeds at a specific time considering the products.

c) The average reaction rate is how quickly the reaction proceeds over time. An instantaneous reaction rate is how quickly the reaction proceeds at a specific time.

d) The average reaction rate is how quickly the reaction proceeds over time. An instantaneous reaction rate is how quickly the reaction proceeds compared to another reaction.

How many molecules of ammonia are contained in 10.4 moles of ammonia, NH3?

radio activity7: How is Radiation Used in Medical Treatment?

HELP!!!!!....... Iron oxide reacts with carbon monoxide to produce iron and carbon dioxide, with the balanced chemical equation Fe2O3 + 3CO —> 2Fe + 3CO2. What does this tell you about the relative amounts of iron oxide and iron consumed and produced in this equation?

A. For every two moles of iron oxide consumed, one mole of iron is produced,

B. For every two grams of iron oxide consumed, one gram of iron is produced.

C. For every gram of iron oxide consumed, two grams of iron are produced

D. For every mole of iron oxide consumed, two moles of iron are produced.

List the following gases in order of increasing average molecular velocity at 25 degrees Celcius: H20, He, HCI, BrF, and NO2 (I'm so confused... thank you in advance!!!) ​

Where would you find the asthenosphere?

A. layer
B. upper mantle
C. Moho Discontinuity

Which of the following is a type of kinetic energy.

A. A television playing.
B. Magnets stuck to each other.
C. A car parked at the top of a hill.
D. A rolling ball.

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Dimethylformamide

-60.5

153

Diethylene glycol

-10

246

Dimethylsulfoxide

18.4

189


Ethylene glycol

-13

195

Acetic acid

16.6

118

what is the unknow substance ?

{ i know this is not for chemistry so don't mind that }

Determine the point group change, if any, when GeCl4 is transformed into GeCl3F by a substitution process.

In order to be in a position to manipulate any operation, one has to know all the fine details of the system and where and how one might apply subtle changes to affect the outcome. When looking at chemical reactions, it is from the study of its kinetics that one gleams the insight necessary to be able to do this. The main use of chemical kinetics is to measure the speed of a chemical reaction. But more importantly, in measuring the speed of a reaction, one gains insight as to what part of the reaction imparts this speed (or lack thereof) and thus allows one to propose a specific mechanism that details the critical pathway for the reaction. Measuring the speed of a chemical reaction is very similar to measuring speed in general, except that instead of talking in terms of distance traveled per unit time we are measuring either reactants consumed per unit time or products produced per unit time. There are many factors that affect the speed of a chemical reaction, some of the more common ones being:

Maleic anhydride reacts with ethylene glycol to produce an alkyd resin. Draw thestructure of the condensation polymer produced.

This planet is about the size of Earth. It has a very thick atmosphere with
a lot of gases. The surface temperatures and pressures are extremely
high.
Which planet does this describe?

How many moles of O2 are made from 4 moles of H2O

In these chemical equations, the letters A through D represent different
elements. Which equation is balanced?
A. 3A2B + C2D3
3AD + C2B3
B. 2AB3 + 3C2D – 6CB + A2D3
C. AB + C2D
AD + 2CB
O D. 2AB + 3C2D – 3CB + A2D3

A resonance structure will be insignificant if it has carbon atoms with opposite charges (C- and C ). Azulene represents an exception to this rule, because some resonance structures (with C- and C ) exhibit aromatic stabilization. Draw a resonance structure of azulene with formal charges that best explains the aromatic stabilization. Include lone pairs in your answer.

2. How do chemical weathering and deposition contribute to the formation of the features shown here?


answer asap

why does random error affects precision?​