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A gas mixture composed of helium and argon has a density of 0.719g/l at a 743mmHg and 298k . What is composition of mixture by volume?
Volume increases isothermally? Two pure gas species are mixed at constant temperature? Temperature increases isobarically? Pressure increases isothermally?
a solution is prepared by adding 1.60 grams of solid NaCl to 50ml of 0.100M CaCl2. what is the molarity of chlorine ion in the final solution? assume that the volume of the final solution is 50ml
The two ions are mixed in a solution and you need to pick a chemical to add that would allow you to selectively remove one of them. Briefly describe the process you would use to separate the two ions.
The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 560g/mol. What is the molecular formula of the compound?
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
If the same volume of the buffer was 0.330 M in HF and 0.330 M in NaF, what mass of NaOH could be handled before the pH rises above 4.00?
What is the molality of a solution in which 25 g of sodium chloride is dissolved in 2.0 kg of water
How many milliliters of O2 measured at 24C and 757mmHg , are released from solution in the first minute of the reaction? Please find volume
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point
Write a balanced net ionic equation for the reaction of KMnO4 with the saturated solution of CdC2O4 in diluted H2SO4. The major products are Mn2+ and CO1
This is a study guide for naming of organic compounds, specifically alkanes and substituted alkanes. Thirty (30) questions and answers are also included. The study guide shows you
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