Calculate the density of solution and the molality
Calculate the density of solution and the molality of methanol. In an aquatic solution of methanol (293K and 1bar) with fraction of mass 0,30 the molarity is equal with 8,911 mol/L.
Expected delivery within 24 Hours
Suppose the triangle has sides a, b and c and that angles opposite these sides are A, B and C, respectively. If B = 90deg,sin A = 2/5 and a = 10cm, determine b and c.
Determine a particle of mass = m sitting in the ground state of a box of length = l. Suppose that one wall of the box is suddenly moved out so that the length of the box becomes length = 3l.
The energy difference between the ground state and first excited state in a hydrogen atom is about 10 eV (eV = electron volt). The diameter of a hydrogen atom is 1°A = 10^-10 m.
25 patients were given new drug and the mean side eect factor is found to be .73. Then, test the appropriate null hypothesis and also ne the Type I error and Type II error.
Determine the order of the reaction? How do you know? Determine the rate constant for the reaction? Explain.
If innermost part of cutting edge is 6in, from center of blade, how many radians per second should blade turn? How many revolutions per minute in this?
If a phone call just occurred, determine the probability that there won't be another phone call for at least the next 30 seconds? Determine the probability that there will be at least 2 phone calls in the next minute?
How can estimate the empirical formula when 0.192 g of phosphorus is burned in oxygen, 0.440 g of phosphorus oxide resulted. Write down a balanced equation for the reaction of phosphorus with oxygen.
1925545
Questions Asked
3,689
Active Tutors
1455946
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
For carpet/center time I do a Bible/History lesson every day. We are discussing Moses. Moses married a Cushite woman, in which most people believe
Political culture can be understood as Question options: a) the attributes of a people that form the basis for ethnic identity.
According to your readings, who is a 'cultural broker'? Group of answer choices An elected diplomat from the host country that advocates on behalf
Question: What policy helped to unnaturally "shift" China's population pyramid? Select one
Please discuss at least one domain of culture, as discussed in Hooker (2003) and relate it to applied social policy.
What are two current societal trend/issue in the education of ELLs? How will knowledge of these current societal trends and issues
Should Nathalie take the American History Teaching position at ASL Charter School that she was offered? Why or why not? Provide reasoning for your decision.