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安裝中文字典英文字典辭典工具!
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- What is the mass of 211mL of a liquid that has a density of . . . - Socratic
Approx 190*g By definition, rho, is given by the quotient rho_"density"="mass" "volume", and thus has units of g*mL^-1-=g*cm^-3 And so we simply rearrange
- Question #021e1 - Socratic
36 neutrons One way we have of differentiating between various nuclides of the same element is by writing the name of the element followed by a hyphen and the mass number of the nuclide In your case, you would have zinc-66, a nuclide of zinc that has a mass number equal to 66 Now, an atom's mass number, A, tells you the number of protons, which is given by the atomic number, Z, and neutrons
- Question #c7924 - Socratic
Explanation: Given point #-> (x,y)-> (-3,10)# Given gradient #" " (m) =-2# Thus #y=mx+c" "# becomes #" " y=-2x+c# '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #color (blue
- Direct variation? - Socratic
see a solution process below; From the question; Let, n = "no of water pumps" t = "time" 3n -> 8hrs 4n -> xhrs Since they flow at same rate therefore, it takes a single pump; n = 8 3 pump per hour to fill a pool For four pumps it would take; 4n -> 8 3 xx 1 4 4n -> 32 12 4n -> 3hrs Hence it is an inverse variation, because the lesser more the pump, the lesser the time the pool gets filled up
- Question #bcbe2 - Socratic
The molarity of this solution is 0 25 mol L The molar mass of sucrose C_12H_22O_11 is 342 grams: (12 xx 12 + 22 xx 1+11 xx 16)=342 If we divide the given mass (85 5 g) by this molar mass, we get the number of moles of sucrose used: 85 5g (342 (g "mol")) = 0 25 mol Now, to determine the concentration, we divide the number of moles of solute by the final volume of the solution Since the
- Question #45c4b + Example - Socratic
It is not the best form for good communication Other than the specific "rules" of grammar in any language, what is "right" for writing is very flexible In this example however, there are both too many long sentences, and one wrong word ('necessary' should be 'necessarily') There are a number of writing evaluation programs, courses (some free) and blogs by writers that can help you to write
- Question #88580 - Socratic
Explanation: We're asked to find the molarity of the #"NaOH"# solution given some titration values
- Can someone verify my answer? - Socratic
Try significant digits You answer is correct But the significant figures of your answer might not Double check the way the numbers are written down in the original question Is 2m written as 2 0m, 20 Hz written as 20 Hz etc If so, they are numbers of two significant figures When you have numbers that have mixed significant numbers Then your answer keeps the least significant figure So
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