What is molarity of a solution that contains vitamins b1
What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
Expected delivery within 24 Hours
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg, what is the temperature?
What is the molar mass of a nonpolar molecular compound if 5.52 grams dissolved in 36.0 grams of benzene begins to freeze at -1.87oC? The freezing point of pure benzene is 5.50 oC and the freezing point depression constant, Kfp, is -5.12oC/m."
Sugar (82.00 grams; molar mass 342.3 g/mol) was dissolved in water. The freezing point of the solution was determined to be -3.60 deg C. How many grams of water were used to make the solution? The freezing point depression constant Kf for water is
If copper has a photoelectric threshold wavelength of 279 nm, calculate the velocity (m/s) of the electron emitted when copper is illuminated with light with a frequency of 2.33 × 1015 Hz.
A bag of potato chips contains 585 mL of air at 25°C and a pressure of 765 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 434 mm Hg and the temperature is 4.3°C?
3.0 L of He gas at 5.6 atm pressure and 25 degrees celcius and 4.5 L of Ne gas at 3.6 atm and 25 degrees celcius are combined at constant temperature into a 9.0 L flask. What is the total pressure in atm in the 9.0 L flask?"
While out testing stream water quality in a local fresh water creek, you measure the dissolved oxygen concentration to be 6 mg O2(aq)/L and water temperature of 20°C.
An 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. What is the mass of the magnesium oxide obtained?
1959268
Questions Asked
3,689
Active Tutors
1431949
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
How to take the accountability and make a plan for the dispositions of relationships?
The sub-area of neuropsychology that strives to make the lives of brain-damaged individuals better, regardless of the specificity of the damage
Problem: Engage in conversation with your peers around the impact of nature and nurture on children.
In my opinion, genetics (nature) and environment (nurture) are equally important in preschool and school-aged development
The ACA Code of Ethics clearly states: "Counselors protect the confidential information of prospective and current clients. Counselors disclose information
Marci example of "change talk" includes where she does admit that her relationship between her parents have "soured" which she shared guilt
The purpose of this assignment is to allow the future behavior analysis leader the opportunity to reflect on the Module readings (text/s and articles)