contengopure How much pure god must be add to the way to tananya ope Agoldmth has...
How much HOCl (Ka = 2.5x10-8) (HOCl <=> H+ + OCl- must be added to pure water to make a solution of pH 4.3?
A radiator has 11 L of a 20% antifreeze solution. How much must be drained and replaced by pure antifreeze to bring the concentration level up to 40%? L of the 20% should be drained and replaced by pure antifreeze.
1) How much heat must be supplied in joules to raise the temperature of 50 grams of Iron from 25C to 100C? 2) Calculate the dimensions for a pattern mold that will be used to produce a cast rectangular shaped Gold ingot with dimensions of 10 x 10 x 3 cm at 25C.
Please complete the table and answer how many liters of 10%
acid solution the chemist should add.
A chemist wishes to mix a solution that is 6% acid. She has on hand 14 liters of a 2% acid solution and wishes to add some 10% acid solution to obtain the desired 6% acid solution. How much 10% acid solution should she add? Complete the table Liters of Percent Acid Liters of Solution (as a decimal) Pure Acid 14 0.02 х...
10. [2pt] How much energy must be added to 2800 g of gold at its melting point of 1063 deg. C in order to change it from a solid to a liquid at 1121.0 deg. C? Answer: Last Answer: 4.64E+05 J Not yet correct, tries 1/20
How much heat energy in joules must be added to 78 grams of water initially at 23 degrees Celsius if it ends up at 53 degrees Celsius. Remember that the specific heat capacity of water = 4186 J/ (kg oC) or 1 calorie / (g oC)
1. How much (in grams) urea CO(NH2)2 (nonelectrolyte) must be added in 250g of water to prepare a 0.50m solution? 2. What will be the freezing point of the solution above? Please provide detailed explanation.
Acompany has agreed to pay $4.6 million in 6 years to setle a lawsuit. How much must it invest in an account paying 6% annual interest compounded monthly to have that amount when it is due? What is the interest rate per period? (Type an integer or decimal rounded to four decimal places as needed) of inflation has been running at 2.57% per year and a new car costs $34,200 today, what would it have cost 2 years ago? A...
Hi! i think this question is super hard and i cant understand it. it goes like this A goldsmith has a bracelet that weighs 20 grams. Of the weight of the bracelet 60% is gold and 40% silver. a) How many grams of silver does the bracelet contain? The goldsmith will now make a new bracelet with a halved portion of silver, ie a bracelet where the proportion of silver is half as large. The goldsmith will now make a...
PRE-LAB ASSIGNMENT 1. For any titration, identify how much reactant you must add from the buret. For any thtrahon, you idenhfy how much rea ctant you must add from the buret lby 2. Ascorbic acid, H2C6H&O6 is a diportic acid. What volume (in mL) of 0.120 M NAOH is required to neutralize 10.00 mL of 0.180 M H2C6H6O6 in an acid-base titration? Write the balanced acid-base neutralization equation for this chemical reaction below: a. H2CU Hu Ou tNaOH b. How...