﻿ What mass of NaOH is required to prepare 500.00 mL of 0.1300 M NaOH stock solution, if the solid NaOH is only 98.00% pure? - AssignmentGrade.com

# What mass of NaOH is required to prepare 500.00 mL of 0.1300 M NaOH stock solution, if the solid NaOH is only 98.00% pure?

QUESTION POSTED AT 23/05/2020 - 04:42 AM

I would say it would depend on what the impurity is. But if the purity is determined as 98% pure by mass, then we can calculate:

Moles of NaOH in the stock solution:

Mass of pure NaOH solid () needed:

Mass of solid needed if 98% pure by mass:

## Related questions

### Which state of matter contains the most energetic particles? A. gas B. solid C. liquid D. plasma

QUESTION POSTED AT 29/05/2020 - 05:24 PM

### Assume a reaction takes place in a basic solution to form the given products: mno4-(aq) + cl-(aq) --------> mno2(s) + cl2(g) (unbalanced) i. Balance the given half reactions for atoms and charge

QUESTION POSTED AT 29/05/2020 - 05:10 PM

### Two substances that have the same number of moles of representative particles always have: the same number of atoms the same masses the same weights None of these are correct.

QUESTION POSTED AT 29/05/2020 - 05:07 PM

### Which reaction produces the most energy per mass? fission fusion chemical ionization

QUESTION POSTED AT 29/05/2020 - 05:02 PM

### Unsaturated hydrocarbons require a _____ to react.

QUESTION POSTED AT 29/05/2020 - 04:56 PM

### Calculate the mass defect for the isotope thorium-234

QUESTION POSTED AT 29/05/2020 - 04:50 PM

### Which statement best describes a solution? 1.a mixture consisting of minute particles suspended in a medium that start moving about as soon as the mixing process stops 2.a mixture consisting of larger particles suspended in a medium that start settling down as soon as the mixing process stops 3.a mixture having a uniform composition where the components can't be seen separately and all components are in the same state 4.a mixture having a uniform composition but the components can be seen separately and all components are in a different state

QUESTION POSTED AT 29/05/2020 - 04:10 PM

### Mass can be measured in which of the following? grams , meters, liters , both A and B

QUESTION POSTED AT 29/05/2020 - 03:57 PM

### The volume of a gas is 497.6 ml at 28.7C. If the temperature is increased to 75.7C without changing the pressure, what is the new volume of the gas

QUESTION POSTED AT 29/05/2020 - 03:40 PM

### Which is a practical application of boiling-point elevation? A. Cooling a supersaturated sugar-and-water solution to form rock candy. B. Burning coal to make the steam that powers a steam engine. C. Adding antifreeze to water in a car radiator in summer to raise the boiling point. D. Boiling sea water to recover the salt it contains.

QUESTION POSTED AT 29/05/2020 - 03:33 PM

### The initial temperature of a bomb calorimeter is 28.50°C. When a chemist carries out a reaction in this calorimeter, its temperature decreases to 27.45°C. If the calorimeter has a mass of 1.400 kg and a specific heat of 3.52 J/(gi°C), how much heat is absorbed by the reaction? Use mc020-1.jpg. 140 J 418 J 1,470 J 5,170 J

QUESTION POSTED AT 29/05/2020 - 03:27 PM

### A stone of mass 0.55 kilograms is released and falls to the ground. Measurements show that the stone has a kinetic energy of 9.8 joules at the point of impact with the ground. What is the stone's velocity when it hits the ground? a.6.3 meters/seconds b.7.2 meters/seconds c.8.1 meters/seconds d.9.3 meters/seconds

QUESTION POSTED AT 29/05/2020 - 02:59 PM

### A solid substance turns into a liquid. Which best describes this change?

QUESTION POSTED AT 29/05/2020 - 02:27 PM

### Analysis of a sample of a covalent compound showed that it contained 14.4% hydrogen and 85.6% carbon by mass. what is the empirical formula for this compound?

QUESTION POSTED AT 29/05/2020 - 02:18 PM

### Magnesium and nitrogen react in a combination reaction to produce magnesium nitride. 3 mg + n2 ? mg3n2. in a particular experiment, a 9.27 g sample of n2 reacts completely. the mass of mg consumed is

QUESTION POSTED AT 29/05/2020 - 02:17 PM

### How many grams of potassium nitrate would form if 2.25 liters of a 1.5 molar lead nitrate solution reacts with 1.15 liters of a 2.75 molar potassium chromate solution?

QUESTION POSTED AT 29/05/2020 - 02:17 PM

### Question 2 the osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant r. suppose the osmotic pressure of a certain solution is measured to be 15.atm at an absolute temperature of 399.k.write an equation that will let you calculate the molarity c of this solution. your equation should contain only symbols. be sure you define each symbol other than r.

QUESTION POSTED AT 29/05/2020 - 02:16 PM

### You react an excess of hydrogen gas with 8.00 g of oxygen gas to form water (as shown in the balanced equation below). what mass of water is formed, assuming a complete reaction?

QUESTION POSTED AT 29/05/2020 - 02:16 PM

### When aqueous solutions of potassium carbonate and silver(i) nitrate are combined, solid silver(i) carbonate and a solution of potassium nitrate are formed. the net ionic equation for this reaction is:?

QUESTION POSTED AT 29/05/2020 - 02:14 PM

### A sample of an ideal gas has a mass of 0.311 grams. its volume is 0.225 l at a temperature of 55oc and a pressure of 1.166 atm. find its molar mass.

QUESTION POSTED AT 29/05/2020 - 02:10 PM

### When 2.5g of copper sulphate are dissolved in 500ml of water, the concentration of the solution is

QUESTION POSTED AT 29/05/2020 - 02:10 PM

### Potassium fluoride (kf), a salt, has a molecular weight of 58.10 grams. how many grams would be needed to mix 1.0 liter of 0.10 m salt solution? 0.17 g 580 g 17 g 5.8 g

QUESTION POSTED AT 29/05/2020 - 02:08 PM

### When solid mg metal is put into an aqueous solution of snso4, solid sn metal and a solution of mgso4 result. write the net ionic equation for the reaction?

QUESTION POSTED AT 29/05/2020 - 02:07 PM

### When heated, solid copper(ii) carbonate decomposes to solid copper(ii) oxide and carbon dioxide gas. give the balanced chemical equation (including phases) that describes this reaction?

QUESTION POSTED AT 29/05/2020 - 02:05 PM

### A particular compound contains, by mass, 25.5 % carbon, 40.4 % fluorine, and 34.1 % oxygen. a 0.050-mol sample of this compound weighs 9.40 g. the molecular formula of this compound is:

QUESTION POSTED AT 29/05/2020 - 02:00 PM

### Part b what is the maximum mass, in grams, of nh3 that can be produced by the reaction of 1.0 g of n2 and 1.0 g of h2 using the reaction below? n2+h2?nh3 (not balanced)

QUESTION POSTED AT 29/05/2020 - 01:57 PM

### You have separate solutions of hcl and h2so4 with the same concentrations in terms of molarity. you wish to neutralize a solution of naoh. which acid solution would require more volume (in ml) to neutralize the base?

QUESTION POSTED AT 29/05/2020 - 01:45 PM

### A sample of gas occupies 9.0 mL at a pressure of 500.0 mm Hg. A new volume of the same sample is at a pressure of 750.0 mm Hg. Is the new pressure smaller or larger than the original? Therefore, is the new volume larger or smaller than 9.0 mL? What is this new volume?

QUESTION POSTED AT 29/05/2020 - 01:40 PM

### Solid potassium chlorate (kclo3) decomposes into potassium chloride and oxygen gas when heated. how many moles of oxygen form when 54.3 g completely decomposes?

QUESTION POSTED AT 29/05/2020 - 01:39 PM

### What would be the concentration of a solution resulting when you dissolve 4.725g of nacl (molar mass = 58.45) in water to make a solution with a final volume of 500.0 ml?

QUESTION POSTED AT 29/05/2020 - 01:07 PM