What is the total number of moles of solute in 250 milliliters of a 1.0 M solution of NaCl

Answers

Answer 1

Answer: First, the Molarity equation is M = mol/L. However, the problem is looking for the TOTAL NUMBER OF MOLES in which will have you to reposition the said equation: mol = M/L. Observe that you need L not mL, so you need to convert 250 mL to L that will results to .25 L. Then, substitute the value of the units to the formula and you should be able to get 4 moles.

Answer 2

Answer:

0.25

Explanation:

Related Questions

How many atoms are in 3.75 moles of Phosphorus? A) 136 atoms B) 35 atoms C) 6.23x10^-24 atoms D) 2.26x10^24 atoms
1. In part 1, you collected data about how the amount of sugar affects the amount of gas produced. Analyze those data and draw a conclusion. (16 points) a. What gas inflated the balloons? (2 points)
What was used to join the stained glass pieces together? a. steel b. silver c. lead d. iron?
What role do acids and bases play in our digestion
Speed of sound is greater in aluminum or steel quora . True or False

Heat, like work, is an energy transfer measured in

Answers

Heat, like work, is an energy transfer measured in:

joules.......I hope this helps

The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

Answers

This noble gas is argon (Ar), because its third energy level is full.

(02.03 LC)
What term is used to describe the lowest energy level of a particle? (5 points)

Answers

Explanation:

Answer and Explanation: Photon is the basic unit of light. The excited state refers to the state when any specified electron gained some energy from surrounding. In the ground state, the electron carries no energy and this refers to its lowest energy level.

In today's experiment, you will be recrystallizing a "dirty" sample of benzoin. Choose the statement that best explains how you will determine your sample?a. The yield of my product is high
b. The appearance of the product matches the literature description
c. The melting point range should be less than 3 C
d. The melting point range matches the literature values.

Answers

Answer:The melting point range matches the literature values.

Explanation:

The essence of recrystallization is obtaining the sample in its purest form. This purest form must have the exact properties of the compound as reported in literature. The melting point is part of the means of identifying a pure compound. A pure compound must have a sharp melting point which corresponds with literature reports. Hence the melting point is quite a good means for determining a sample.

Calculate the hydrogen-ion concentration [H+] for the aqueous solution in which [OH–] is 1 x 10–11 mol/L. Is this solution acidic, basic, or neutral? Show all work.

Answers

If we have $[H+][OH-]= Kw = 1.0 x 10^-14$
Then $[H+]= Kw/ [OH-]= 1.0x 10^-14$ $/ 1 x 10^-11 =1 x 10^-3 mol/L$
And here is the solution - as you can see it is an acidic one :
$pH = - log [H+]= - log 1 x 10^-3 = 3 \ \textless \ 7$

I am pretty sure this answer will help you! Regards.

what volume of .123 m naoh, in milliliters, contains 25.0 g of naoh? (density of the solution is 1.05 g / ml)

Answers

Answer:

8.46 liters of 0.123 NaOH contains 25.0 grams of NaOH.

Explanation:

Molar is defined as Moles/Liter. 0.123 M means there is 0.123 moles of NaOH per 1 liter. We are asked to determine how many milliliters of this concentration NaOH it would take to deliver 25.0 grams of NaOH.

Use the units to guide the calculation.

Remember that: Concentration x Volume = Moles

(0.123 moles/liter)*(V) = moles

We want 25.0 grams of NaOH. Let's convert that to moles using the molar mass of NaOH:

(25.0 grams NaOH)/(24.0 g/mole) = 1.04 moles NaOH.

Now we can write:

(0.123 moles/liter)*(V) = 1.04 moles NaOH

V = (1.04/0.123) Liters

V = 8.46 liters

Other Questions

Why is CCl4 a nonpolar molecule, but PCl3 is a polar molecule?

The diagram shows a model of an animal cell. Explain how you'd modify the model to show the structures in a plant cell.

The gray balls represent _____ and have a neutral charge. protons neutrons electrons

How many moles of copper are formed when 3.8 moles of zinc are mixed with copper (II) sulfate?