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A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen in mm Hg? Provide an answer correct to 2 significant figures. Do not use scientific notation. Do not include units in your answer. For example, if you calculate that the correct answer is 514 mm Hg, simply type "510" in the box without the quotation marks (") or units as part of your answer.
assuming the unknown acid has one acidic proton per molecule, what is the molecular formula of the unknown acid?
Find the concentration of the HCL solution in moles/liter. b). How could the HCl soluted be diluted to make 1000ml of HCl solution with a concentration of 0.400M
A pure titanium cube has an edge length of 2.65 .How many titanium atoms does it contain. Titanium has a density of 4.50g/cm^3
Explain what are the molecular weight as well as the molecular formula of the compound. The freezing point of pure benzene is 5.48 degrees Celsius as well as it's Kf is 5.12 degrees Celsius/m
Question- The densities do sodium chromate and sodium hydroxide are 4.89g/mL and 0.99g/mL. Which has greater volume, 10g of sodium chromate or 10g of sodium hydroxide? What is the volume of each
Metformin is used to treat Type II Diabetes. It is excreted in the urine with no metabolism from the liver with a half-life of 5 hours. Average Volume of Distribution of Metformin is 654 L for a dose of 850 mg.
The equation for the metabolic breakdown of glucose (C6H12O6) is the same as the equation for the combustion of glucose in air C6H12O6(s) + 6 O2(g)6 CO2(g) + 6 H2O(l)
The unbalanced equation for the reaction is... BrO3^-(aq) + Sb^3+ (aq) ---> Br^-(aq) + Sb^5+ (aq) Calculate the amount of antimony in the sample and it percentage in ore.
Ti and Hf behave as though they possess the same number of valence electrons.Which of the subshells in the electron configuration of Hf behave as valence orbitals? Which behave as core orbitals?
Calculate the pH of a solution that is 1.20×10^?3 M in HCl and 1.00×10^?2 M in HClO2. Express your answer using three decimal places
If the same amount of heat is added to identical masses of each of these substances, which substance attains the highest temperature? (Assume that they all have the same initial temperature.)
a flask contains a mixture of neg and arg. there are 0.250 mol of neg which exerts a pressure of 205 mmhg. if the arg
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