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Calculate the percent composition of sodium in sodium chloride. Tom Yum soup contains 420 mg sodium and 30 mg potassium in each 200 g serve.
Calculate the total salt concentration (in mole litre-1) of a cup of soup assuming that both the sodium and potassium are added as chloride salts.
What is the concentration of chloride in gram per 100 mL?
A 255-mL sample of HCl solution reacts with excess Mg to produce 14.0 L H2 gas at STP. What is the molarity of the HCl solution?
How many grams of NaOH are needed to prepare 250 g of 1.00% NaOH solution in water?
Following the procedure of this experiment, a student team used 0.266g of barium nitrate and 0.424g potassium iodate and collected 0.395g of barium iodate. What was the theoretical yield of barium iodate?
Design a qualitative analysis scheme
A mixture of 70 mole% propane and 30 mole% hydrogen is burned with 30% excess air.
hydrogen gas is generated when calcium reacts with water. the volume of gas collected over water at 30 degree celcius and pressure of 988 mm Hg is 641 ml. what is the mass in grams of the hydrogen gas obtained? the pressure of water vapor at 30 de..
Both colas are equally carbonated. You are able to drink 1 L of cola, but your friend can drink only about half a liter. You each close the bottles and place them in the refrigerator. The next day when you each get the colas, whose will be more ca..
The substance CS2 has a melting point of -110.8°C and a boiling point of 46.3°C. Its density at 20°C is 1.26 g / cm3. It is highly inflammable. a.)Name this compound.
What is the balanced equation for the synthesis of Acetylsalic acid (Aspirin) from Methyl salicylate?
what are the possible sources of error when finding the density of a liquid and of a solid? what can be done to avoid these errors?
Find reactant and product information, Balance the following reaction: Mn + HCl --> MnCl2 + H2, If you have 100g of Mn and 100g of HCl find
CO2 has a mol wt of 44 Da. 5.0 micro liters of CO2 is added to 525 mL of air. The pm of CO2 by volume and weight is/are?
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