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Question- What mass in grams of a molecular substance (molar mass= 50g/mol) must be added to 500g of water to produce a solution that boils at 101.56 C?
Please show me how work it out above problem
Calculate the masses of the solid you must measure out to prepare 100mL EACH OF 0.025 M KNO3 , 0.025 M CuSO4, 0.025 M Ca(NO3)2, and 0.025 M KCl . include waters of hydration when clculating the formula wights.
We are unable to detect iron via atomic spectroscopy. The problem is we have added Fe-EDTA in a formulation. For detection of Fe, we digest the formulation (sample) with H2SO4 (usual practice) but we are unable to detect Fe by atomic spectroscopy.
A reagent bottle is labeled 0.388M Na2SO4. assuming no volume change, how many grams of Na2SO4 (MM=142.05g/mol) needs to be added to 1.50L solution to obtain 0.750M solution of Na2SO4?
When NH4Cl + Sr(OH)2 8H2O reacted,what actually happens during the reaction? and how can I conclude this type of reaction?
If a bottle of nail polish remover contains 176 of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 .
a premature infant suffers from respiratory distress syndrome. compared to a normal infant, your patient will have- increased production of lactate by anaerobic glycolysis
a 255-ml flask contains pure helium at a pressure of 745 torr. a second flask with a volume of 455 ml contains pure
The density of an unknown substance was determined by adding a weighed piece to a graduated cylinder containing 37.3 mL of water. After the substance was submerged the water level was measured at 46.2 mL. The substance weighed 100.0 g. What was it..
An airplane is pressurized to 650 mmHg, Which is the atmospheric pressure at a ski resort at 1.30 * 10^4ft alt?
Suppose that 23.2 mL of 0.410 M sodium chloride is mixed to 23.2 mL of 0.339 M silver nitrate. Determine how many moles of silver chloride would precipitate?
Describe the role of biotin in the gluconeogenic pathway. What effect would biotin deficiency have on a person, and how might you overcome or avoid that effect?
Imagine that it is a very hot summer day outside. To help quench your thirst while outdoors, you decide to make yourself a big batch of ice tea. When you add large quantity of sugar to the tea to sweeten it, you notice that where the sugar lands o..
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