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A solution is made by dissolving 75. 0 grams of glucose to . . . - Socratic M_B = 0 0139M First you need to calculate the molarity (concentration) of the first solution from the molecular weight of glucose Then you simply use a volumetric ratio to calculate the final dilution concentration 75 180 = 0 4167 Mole ; 0 4167 2 = 0 208M solution
Site Map - Galvanic Cells Questions and Videos | Socratic How much lead is plated out of the solution? What is the standard EMF of a cell that uses the #"Mg Mg"^ (2+)# and #"Cu Cu"^ (2+)# half-cell reactions at #25^@"C"# ? If the two reactions below are coupled to form a voltaic cell, how do you calculate the standard emf (electromagnetic force) representing a spontaneous reaction?
An 80. 0 sample of N_2O_5 is allowed to decompose at 45°C . . . - Socratic First-order reaction, N 2O5 → N 2O4 + 1 2 O2 EDIT: k = 6 2 × 10−4 sec−1 Second part: How many liters of O2, measured at 745 mmHg and 45°C, are produced up to this point? Hint: convert the mmHg to atm For the first part, I got ≈ 5590 but my classmate kept getting 5 59 ×10−5 for some reason After fiddling with the calculator, I would sometimes get that, but I mostly got 5590 minutes
Questions asked by Dr. Jeffrey Sack - Socratic How do you calculate atoms of an element? How do you calculate density of matter? How do you calculate molar mass of compounds? How are compounds in organic chemistry named? Why do elements burn different colors? What are electrons? What are common mistakes students make with the periodic table?
During an experiment, 30 mL of a gas is collected at 401 kPa . . . - Socratic Volume = 119 ml If the temperature does not change it is possible to calculate the new volume using Boyle's Law If the temperature changes the volume will also change The question does not give any information regarding the temperature so it is necessary to assume the temperature does not change in this problem Boyle's Law states that pressure and volume are inversely related so in this
Question #edb36 - Socratic The mass will be 492 8 g Each 6 02xx10^23 molecules will equal one mole of a compound (regardless of whether it is methanol, or anything else) So, our first (of two) calculations must be to convert molecules to moles: 9 28xx10^24-:6 02xx10^23=15 4 moles Next, noting that this question refer to methanol in particular, we calculate the mass by using the molar mass of methanol, which is 32 0 g
How do you calculate the force of buoyancy? - Socratic Using F_b=rhogV F_b=rhogV Where, F_b is the buoyant force rho is the density of the fluid g is the acceleration due to gravity (~~9 81ms^-2) V is the volume of the fluid the object emerges in The buoyancy force is the upward force acting on an object that is caused by a displaced fluid The more fluid that's displaced, the greater the buoyant force is If an object is fully submerged in the
Question #df419 - Socratic The distance is =4u The vertex form of a parabola is y=a (x-h)^2+k where (h,k) is the vertex Here, we have y=16-x^2 y=-x^2+16 y=- (x-0)^2+16 As a<0, the parabola opens downwards and the vertex is at (0,16) If you need, I can calculate the shortest distace with partial derivatives
Frequency question? - Socratic Explanation: For a histogram it is the AREA of the bars that measures the actual frequency So the first task is to calculate the frequency for each interval Total #=10xx6+10xx17 5+20xx13+5xx15+10xx5# #=60+175+260+75+50# #=620#