Calculate the gas density in g-l
An evacuated (empty) 276 mL glass bulb weighs 129.6375 g. Filled with an unknown gas, the bulb weighs 130.0318 g. Calculate the gas density in g/L, and express it with an appropriate number of significant figures.
Expected delivery within 24 Hours
If, in a certain experiment, over a specific time period, 0.0027 mol PH3 is consumed in a 1.8-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
How many grams of water can be cooled from 45 to 18 by the evaporation of 62 of water? (The heat of vaporization of water in this temperature range is 2.4 . The specific heat of water is 4.18 .)
Ammonia can be decomposed to give 3 parts by mass of hydrogen and 14 parts by mass of nitrogen. What mass of nitrogen is obtained if 1.27g of ammonia is decomposed?
Suppose that 1.331 g of impure barium hydroxide is dissolved in enough water to produce 250. mL of solution and that 35.0 mL of this solution is titrated to the stoichiometric point with 17.6 mL of 0.0935 M HCl(aq).
Calculate the number of moles of N_2 dissolved per liter of blood, which is essentially an aqueous solution.
A toothpaste contains 0.24 % by mass sodium fluoride, NaF and 0.30 % by mass of triclosan, C12H7Cl3O2. The mass of one tube of toothpaste is 119 g. a) How many moles of C atoms are in the toothpaste?
The pressure inside a particular 5.00 L bottle of gas must be 1 atm or less in order to open the bottle cap. To what temperature, in oC, must a bottle of gas be cooled so that the bottle cap can be removed if at 25.0oC the pressure is 2070 mm Hg.
A sample of gas with a mass of 1.80 g occupies a volume of 921 mL at a pressure of 733 torr and a temperature of 24 C. What is the molar mass of the gas?
What is the main purpose of scratching beaker's wall during the synthesis of the complex?
a 2.00 g peanut is burned in a bomb calorimeter containing 1400 g of water. the temperature of the water increases from 25 C to 30.25 C. What is the heat change, in Calories, for this peanut?
1925863
Questions Asked
3,689
Active Tutors
1430284
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Give an example of companies using: Focus on market niche information systems strategy
What experiences have you had with cross-cultural communications? Share at least one experience when it has gone well and one when it has not gone well.
What factors contributed to making Coca-Cola such a strong global brand? How was Coca-Cola able to stay relevant for over 125 years?
Do you think the GDPR (the General Data Protection Regulation) has had the desired impact? If so, what has the benefit been?
Can you identify marketing or business strategies they are using in foreign markets that are different than their domestic strategies?
Demonstrate how ZARA can add value by using Porter's value chain analysis and use it for measuring customer satisfaction.
What strategic plan can I use for a career vision and mission? And how can I create this plan- what strategic plan model can I use?