The numerical value was not clear.
But i hope, the concept is clear.
An unknown salt and mixture was determine to have a mass of 2.137 grams. If it...
Limiting reactant help??
Unknown number Pial Tared mass of salt mixture (g) 1003 2 209-30Bg Mass of filter paper (g) . Mass of filter paper and Ba(PO,) (g) 4. Mass of Ba,(PO)(g) . Determination of Limiting Reactant . Limiting reactant in salt mixture (write complete formula) 2. Excess reactant in salt mixture (write complete formula) ata Analysis 1. Moles of Ba,(PO, precipitated (mol) 2. Moles of limiting reactant in salt mixture (mol) Naa P04 Jodium phosphate barinnn ch10万de . formula...
an unknown substance of mass 200 g at a temperature of 148 degree C is put in to 400 g of water at 40 degree C. the final equilibrium temperature is 44 degree C. what is the specific heat of the unknown substance ? what is the substance?
Review l Constants Perlo Part A It takes 55.0 J to raise the temperature of an 10.7 g piece of unknown metal from 13.0"C to 24.3 °C. What is the specific heat for the metal? Express your answer with the appropriate units. View Available Hint(s) Learning Goal: To understand the concepts of heat capacity, specific heat, and molar heat capacity Heat capacity, C, is the amount of energy required to raise the temperature of a substance by exactly 1 degree...
You are given an unknown salt that contains a mixture of FeCl2 (s) and FeCl3 (s). Describe a procedure for determining the mass percentage of each compound salt
You have an unknown substance that contains three elements: carbon, hydrogen, nitrogen. Your burn 7.114 grams of the unknown formula in excess oxygen gas to get 10.03 g of CO2 and 10.26 g of H20. What is the empirical formula of the unknown? what is the molecular formula if the molar mass of the unknown is 248.04 g/mol?
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
A chunk of ice of mass 50 grams at 0 degree C is dropped into an aluminum container of mass 200 grams which contains 400 grams of water at 22 degree C. What is the temperature after thermal equilibrium is reached? Assume no energy is lost to the surroundings. The specific heat of aluminum is 0.22 calorie/gram C degree.
What is the percent by mass of salt in a mixture that contains 150 g of salt, 1.2 kg of flour and 650 g of sugar? please show me how to solve Select one or more: a. 7.5% b. 8.1% c. 0.075% d. 19%
A 1.802 gram sample of unknown compound contains 0.721 grams of carbon, 0.121 grams of hydrogen and 0.960 grams of oxygen. The compound has a molar mass of 180.2 g/mol. Determine the empirical formula of the compound and the molecular formula. Show all work.
A student heated a sample of a hydrated salt and obtained the following data: Grams of hydrated salt used: 1.0000 gram Grams of anhydrous salt (147 g/mole) recovered: 0.8033 grams Grams of water vapour (18 g/mole) lost: 0.1967 grams Determine the percentage by mass of water in this hydrate. (1) How many water molecules, "X", are bonded to this hydrated salt, salt. X H20? (2)