Question 19 (1 point) A one molar solution of NaOH in water contains U a) one mole of NaOH per mole of solution. U...
Question 5 (1 point) An oven-cleaning solution is 40.0% (by mass) NaOH. If one jar of this product contains 468.0 g of solution, how much NaOH does it contain? 18.7 g 11.7g 187 g 18.7 g none of these Question 6 (1 point) A nitric acid solution that is 40.0% HNO3 (by mass) contains 40.0 g HNO3 and 100.0 g water 40.0 g HNO3 and 60.0 g water 40.0 mol HNO 40.0 g HNO3 and 40.0 g water none of...
lines 14-17 C. Molar Heat of Solution NaOH 11. Temperature of water before (°C) 12. Mass of solid (s) 13. Temperature of water after (°C) 14. Heat change of solution (cal) 15. Molecular mass of solid (g/mole) Nac NHACI 19°C 18.5C 1900 1.Solog 1.500g 1.4869 182 14.8 30°C 16. Number of moles of solid 17. Molar heat of solution (kcal/ mole)
Question 18 An aqueous solution of glucose (C6H1206) contains 22% glucose by mass. Calculate the mole fraction of glucose. Molar Mass of glucose = 180 g/mole; Molar Mass of water = 18 g/mole 0.122 0.0274 O 0.973 1.00
1) One mole of copper(II) sulfate, CuSO4, contains O atoms. 2) What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid? 3) How many moles of K2SO4 are in 15.0 g of K2SO4? 17) How many grams of glucose are needed to prepare 400 mL of a 2.0%(m/v) glucose solution? 18) How many moles of CaCl2 are in 250 mL of a 3.0 M of CaCl2 solution? 19) What volume of 0.10 M NaOH...
art A he molar mass o glucose is 180 grams per mole gi ol ). Which of the following procedures should you carry out to make a 1 M solusion of glucose? In 0.8 liter (L)of water, dissove 18 g of glucose, and then add more water until the total volume of the solution is 1 L 180 g of glucose, and then add more water until the total volume of the solution is 1 L 1 g of glucose,...
Question 21 A solution contains 478 grams of ethylene glycol (C2H4O2) in 3202 grams of water. Calculate the molality of the solution Molar mass of ethylene glycol = 62 g/mole; Molar Mass of water = 18 g/mole 2.41 m 0.372 m 24100 m 0.149 m
(1 point) A tank contains 1600L of pure water. Solution that contains 0.08 kg of sugar per liter enters the tank at the rate 6 Umin, and is thoroughly mixed into it The new solution drains out of the tank at the same rate. (a) How much sugar is in the tank at the begining? (kg) (b) Find the amount of sugar after t minutes kg) c) As t becomes large, what value is y) approaching ? In other words,...
The freezing point of water is 0.0 degree C. What is the freezing point of a solution of 5.00g of ammonium sulfide in 444 g of water (molar masses In g/mol: N=14.01; H=1.01, S=32.07; O=16.00) One mole of gas A decomposes into one mole of gas B and one mole of gas C with K_P = 1. 8 times 10^-5 at 300 K. If the initial pressure of each gas was 0.150 atm. what were the pressures at equilibrium.
(1 point) A tank initially contains 25 liters of salt water solution with 10 grams of salt dissolved in it. Salt water containing one gram of salt per liter pours in at the rate of one liter per minute and the well-stired mixture drains out at the rate of 2 liters per minute. How many grams of salt will be in the tank after one minute? Answer: grams of salt.
QUESTION An acidic solution O a contains more OH than Hgo Ob. contains only Hzot and no OH o contains more Hzot than OH od contains only OH' and no H307 QUESTION 4 HCl(aq) is a strong acid. This means a HCl is 100% dissociated in water. b. HCl is miscible in water. c. HC reacts with everything. od HCl(aq) always has a pH of 1. QUESTION 5 Which of the following mixtures can produce a buffer? O a. A...