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- Question #33eb8 - Socratic
Let's call the number of weeks we are looking for: w We can then write a formula: $145 + $36w = $433 And we can now solve for w: First, subtract $145 from each side of the equation to isolate the w term while keeping the equation balanced: $145 − $145 + $36w = $433 − $145 0 + $36w = $288 $36w = $288 Now, divide each side of the equation by $36 to solve for w while keeping the equation
- Question #5d6cd - Socratic
Notice that the reaction ended up producing 145 g of xenon tetrafluoride This represents the reaction's actual yield, i e what you actually get by doing the reaction in the lab
- How do you add (-8-9i)+(3-6i) in trigonometric form? | Socratic
For a complex number a +bi we can repesent this in trigonometric form, as z = r(cosθ +isinθ) r = √a2 + b2 θ = arctan(b a) So, for z1 = − 8 − 9i, we can find that r1 = √(− 8)2 +(−9)2 = √145 θ1 = arctan(−9 −8) However, −8 − 9i is in quadrant 3, but θ is in quadrant 1, so we need to add π θ1 = arctan(−9 −8) +π ≈ 3 9857 z1 ≈ √145(cos(3 9857) + isin(3 9857
- What is the equation of the line with slope - Socratic
The equation of a line in slope-intercept form is y = mx + b We are given x, y, and m So, plug these values in: 11 = 12 11 ⋅ − 2 + b 11 = − 24 11 + b 11 + 24 11 = b 121 11 + 24 11 = b 145 11 = b This is how I would leave it but feel free to turn it into a mixed fraction or decimal So, our equation is y = (12 11)x + 145 11
- Question #a6cce - Socratic
The wavelength is lambda=1 03xx10^(-7) m Detailed solution below There is a variety of ways to calculate this, but I will use the method that I think best suits a chemistry approach to the question The energy of each stationary state of hydrogen is given by E_n=-1311 n^2 where I use a value for the numerator that has units of kJ per mole (This is the equivalent of 13 6 eV if you are
- Question #48bcb + Example - Socratic
From this, the number of unpaired electrons seems to be: Number of unpaired electrons = S |ms| = 2 145 1 2 = 4 29 ≈ 4 So it looks like treating μS+L ≈ μS for Fe2+ is OK to determine the number of unpaired electrons For Fe3+ it should be that μS+L = μS perfectly, since the 3d is half-filled there
- Question #88b4c - Socratic
The chemical equation and the molar masses are M r:mmml286 14mmmmmmmmmmmmm18 02 mmmNa2CO3 ⋅ 10H2O → Na2CO3 ⋅ H2O+ 9H2O Step 1 Calculate the moles of Na2CO3 ⋅ 10H2O Moles of Na2CO3 ⋅ 10H2O = 100 0g Na2CO3 ⋅ 10H2O × 1 mol Na2CO3 ⋅ 10H2O 286 14g Na2CO3 ⋅ 10H2O = 0 3495 mol Na2CO3 ⋅ 10H2O Step 2 Calculate the moles of water released Moles of H2O = 0 3495 mol Na2CO3 ⋅ 10H2O
- How is calcium sulfite prepared? | Socratic
Well, the simple reaction is CaO(aq) + SO2(g) → CaSO3(aq)
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