• Canadian Federal Election?

    The 42nd Canadian Federal Election is coming up in October of this year, and I was wondering if you can tell me in detail all of the candidates in all of the parties, especially Justin Trudeau, Conservative Party, NDP, and etc. I want to know more about the election as well as the pros and cons of voting for each candidate. Thanks!
    The 42nd Canadian Federal Election is coming up in October of this year, and I was wondering if you can tell me in detail all of the candidates in all of the parties, especially Justin Trudeau, Conservative Party, NDP, and etc. I want to know more about the election as well as the pros and cons of voting for each candidate. Thanks!
    2 answers · Elections · 2 years ago
  • Chemistry - Electroplating - URGENT!?!?!?!?

    It takes 79.3 s for a 1.83-A current to plate 0.1468 g of a metallic element from a solution containing M2+ ions. What is the element (M)? Answer with the chemical symbol for the element.
    It takes 79.3 s for a 1.83-A current to plate 0.1468 g of a metallic element from a solution containing M2+ ions. What is the element (M)? Answer with the chemical symbol for the element.
    1 answer · Chemistry · 3 years ago
  • Math - Sequences and Series?

    Determine whether the sequence converges or diverges. If it converges, find the limit. an = ((-1)^n+1)n / (n + sqrt(n))
    Determine whether the sequence converges or diverges. If it converges, find the limit. an = ((-1)^n+1)n / (n + sqrt(n))
    1 answer · Mathematics · 3 years ago
  • Math - Volume of Revolution - (URGENT!!!)?

    Find the volume of revolution generated by rotating the region y = 1/(x^2+1), y=0, x=1, x=2 in the xy-plane about the y-axis. Please show me the washer and the cylindrical shell method, please.
    Find the volume of revolution generated by rotating the region y = 1/(x^2+1), y=0, x=1, x=2 in the xy-plane about the y-axis. Please show me the washer and the cylindrical shell method, please.
    1 answer · Mathematics · 3 years ago
  • Acidity or Basicity of Salt Solutions.?

    Will 0.10 M aqueous solutions of the following salts be acidic , basic or neutral? (Assume a solution is neutral if its pH is 7.00±0.05). Equilibrium constants may be found in an appendix to your text. sodium chloride (NaCl) sodium ascorbate (Na2C6H6O6) ammonium cyanide (NH4CN) ammonium sulfite ((NH4)2SO3) sodium dihydrogen phosphate (NaH2PO4)
    Will 0.10 M aqueous solutions of the following salts be acidic , basic or neutral? (Assume a solution is neutral if its pH is 7.00±0.05). Equilibrium constants may be found in an appendix to your text. sodium chloride (NaCl) sodium ascorbate (Na2C6H6O6) ammonium cyanide (NH4CN) ammonium sulfite ((NH4)2SO3) sodium dihydrogen phosphate (NaH2PO4)
    1 answer · Chemistry · 3 years ago
  • Vapour Pressure of Solutions of Non-Volatile or Volatile Solutes - URGENT!?!!?

    1) 20.784 g of a non-volatile solute is dissolved in 370.0 g of water. The solute does not react with water nor dissociate in solution. Assume that the resulting solution displays ideal Raoult's law behaviour. At 70°C the vapour pressure of the solution is 231.16 torr. The vapour pressure of pure water at 70°C is 233.70 torr. Calculate the molar... show more
    1) 20.784 g of a non-volatile solute is dissolved in 370.0 g of water. The solute does not react with water nor dissociate in solution. Assume that the resulting solution displays ideal Raoult's law behaviour. At 70°C the vapour pressure of the solution is 231.16 torr. The vapour pressure of pure water at 70°C is 233.70 torr. Calculate the molar mass of the solute (g/mol). 2) Now suppose, instead, that 20.784 g of a volatile solute is dissolved in 370.0 g of water. This solute also does not react with water nor dissociate in solution. The pure solute displays, at 70°C, a vapour pressure of 23.37 torr. Again, assume an ideal solution. If, at 70°C the vapour pressure of this solution is also 231.16 torr. Calculate the molar mass of this volatile solute. Please help!!!
    1 answer · Chemistry · 3 years ago
  • Mean Value Theorem - True/False?

    Mark each statement True or False. 1) The function f(x)=abs(x) satisfies the three hypothesis of Rolle's Theorem on [−1,1]. 2) If f is defined on the closed interval [a,b], differentiable on the open interval (a,b), and if f(a)=f(b) then there is a number c in (a,b) such that f'(c)=0. 3) If f is continuous on [a,b], then there exists a... show more
    Mark each statement True or False. 1) The function f(x)=abs(x) satisfies the three hypothesis of Rolle's Theorem on [−1,1]. 2) If f is defined on the closed interval [a,b], differentiable on the open interval (a,b), and if f(a)=f(b) then there is a number c in (a,b) such that f'(c)=0. 3) If f is continuous on [a,b], then there exists a point c in (a,b) such that f'(c)=f(b)−f(a)/b-a. 4) Let f be continuous on the closed interval [ab] and differentiable on the open interval (a,b), and let A=(a,f(a)) and B=(b,f(b)). Then there is at least one point P on the graph of f where the tangent line is parallel to the secant line AB. 5) Suppose f is differentiable on an interval I. If f is not injective on I, then there exists a point c in I such that f'(c)=0.
    1 answer · Mathematics · 3 years ago
  • Thermodynamics - Chemistry URGENT NEED HELP!!!!!!!!?

    A calorimeter contains 142 g of water at 22.5°C. A 12-g sample of NaCl is added to the water in the calorimeter. After the solid has dissolved, the temperature of the water is 21.4°C. Calculate the enthalpy of solution for dissolving sodium chloride. Assume that no heat is lost to the calorimeter or the surroundings and that the specific heat of the... show more
    A calorimeter contains 142 g of water at 22.5°C. A 12-g sample of NaCl is added to the water in the calorimeter. After the solid has dissolved, the temperature of the water is 21.4°C. Calculate the enthalpy of solution for dissolving sodium chloride. Assume that no heat is lost to the calorimeter or the surroundings and that the specific heat of the solution is the same as that of pure water. a) 0.71 kJ/mol b) 0.83 kJ/mol c) 3.2 kJ/mol d) 3.5 kJ/mol e) 0.059 kJ/mol
    1 answer · Chemistry · 3 years ago
  • Gas Laws - Chemistry?

    A balloon contains 10.0 g of neon gas. With the temperature kept constant, 10.0 g of argon gas is added. What happens? A) The balloon doubles in volume. B) The volume of the balloon expands by more than 2 times. C) The volume of the balloon expands by less than 2 times. D) The balloon stays the same size, but the pressure increases. E) none of... show more
    A balloon contains 10.0 g of neon gas. With the temperature kept constant, 10.0 g of argon gas is added. What happens? A) The balloon doubles in volume. B) The volume of the balloon expands by more than 2 times. C) The volume of the balloon expands by less than 2 times. D) The balloon stays the same size, but the pressure increases. E) none of these (Explain the steps, please.)
    1 answer · Chemistry · 3 years ago
  • Gas Laws - Chemistry?

    A balloon contains 10.0 g of neon gas. With the temperature kept constant, 10.0 g of argon gas is added. What happens? (Explain the steps, please.)
    A balloon contains 10.0 g of neon gas. With the temperature kept constant, 10.0 g of argon gas is added. What happens? (Explain the steps, please.)
    3 answers · Chemistry · 3 years ago
  • Urgent Squeeze Theorem - Mathematics?

    Let f be the function such that f(x)=1+x^2 if x is irrational and f(x)= 1+4x^4 if x is rational, use the squeeze theorem to find lim --> 0 f(x)? solution: Clearly, for all real numbers x, f(x) >(or equal to) 1. Next, we note that for a real number x, x^2 - 4x^4 = x^2(1 - 4x^2) >(or equal to) 0, if and only if (A)>(or equal to) 0. This... show more
    Let f be the function such that f(x)=1+x^2 if x is irrational and f(x)= 1+4x^4 if x is rational, use the squeeze theorem to find lim --> 0 f(x)? solution: Clearly, for all real numbers x, f(x) >(or equal to) 1. Next, we note that for a real number x, x^2 - 4x^4 = x^2(1 - 4x^2) >(or equal to) 0, if and only if (A)>(or equal to) 0. This mean that x^2 >(or equal to) 4x^4 if and only if domain of x is [ (B), (C) ]. Particularly, we get that for all (D) numbers x in [ (E) , (F) ] we have f(x) = 1 + 4x^4 <(or equal to) 1 + x^2. Therefore, for all domain of x [ (G) , (H) ], we have that 1 <(or equal to) f(x) <(or equal to) 1+x^2. since lim x--> 0 (1+x^2)= (I) , by the squeeze theorem, lim x--> 0 f(x)= (J). Parts with multiple choice option: (A) = x^2 or 1-4x^2 or 4x^2-1 (D) = rational or irrational
    1 answer · Mathematics · 3 years ago
  • Acids and Bases?

    A 0.350-g sample of an acid, HX, requires 25.4 mL of a 0.140 M NaOH solution for complete reaction. Calculate the molar mass of the acid.
    A 0.350-g sample of an acid, HX, requires 25.4 mL of a 0.140 M NaOH solution for complete reaction. Calculate the molar mass of the acid.
    1 answer · Chemistry · 3 years ago
  • Limits: Basic Definitions?

    Match two lists: A The line x=a is called a vertical asymptote of the curve if at least one of the following statements is true: ... B Let f be a function defined on both sides of a, except possibly at a itself. We write limxa f(x)= − and say "the limit of f(x), as x approaches a, is negative infinity"... C We write limxa− f(x)=L and... show more
    Match two lists: A The line x=a is called a vertical asymptote of the curve if at least one of the following statements is true: ... B Let f be a function defined on both sides of a, except possibly at a itself. We write limxa f(x)= − and say "the limit of f(x), as x approaches a, is negative infinity"... C We write limxa− f(x)=L and say "the left-hand limit of f(x), as x approaches a, equals L" if we can make the values of f(x)... D We write limxa f(x)=L and say "the limit of f(x), as x approaches a, equals L" if we can make the values of f(x) ... E Let f be a function defined on both sides of a, except possibly at a itself. We write limxa f(x)= and say "the limit of f(x), as x approaches a, is infinity"... F limxa f(x)=L if and only if... G We write limxa+ f(x)=L and say "the right-hand limit of f(x), as x approaches a, equals L" if we can make the values of f(x)... ... if the values of f(x) can be made arbitrarily large negative by taking x to be sufficiently close to a (on either side of a) but not equal to a. ... limxa+ f(x)=L and limxa− f(x)=L. ... if the values of f(x) can be made arbitrarily large (as large as we like) by taking x to be sufficiently close to a (on either side of a) but not equal to a. ... limxa f(x)= infinity limxa− f(x)= infinity limxa+ f(x)= infinity limxa f(x)= − infinity limxa− f(x)= − infinity limxa+ f(x)= − infinity
    1 answer · Mathematics · 3 years ago
  • Moles and Molar Masses?

    How many atoms of nitrogen are present in 5.00 g of each of the following? a. glycine, C2H5O2N b. magnesium nitride c. calcium nitrate d. dinitrogen tetroxide
    How many atoms of nitrogen are present in 5.00 g of each of the following? a. glycine, C2H5O2N b. magnesium nitride c. calcium nitrate d. dinitrogen tetroxide
    1 answer · Chemistry · 3 years ago
  • Elemental Composition and Compound Stoichiometry?

    The green pigment, chlorophyll a, absorbs red light, the energy from which powers photosynthetic processes in plants and algae. Chlorophyll a is 6.27% nitrogen by mass. Each molecule of chlorophyll a contains 4 nitrogen atoms. a) What is the molecular mass of chlorophyll a? b) Each chlorophyll a molecule contains one magnesium atom. What mass of... show more
    The green pigment, chlorophyll a, absorbs red light, the energy from which powers photosynthetic processes in plants and algae. Chlorophyll a is 6.27% nitrogen by mass. Each molecule of chlorophyll a contains 4 nitrogen atoms. a) What is the molecular mass of chlorophyll a? b) Each chlorophyll a molecule contains one magnesium atom. What mass of magnesium is to be found in 2.86 g of chlorophyll a?
    1 answer · Chemistry · 3 years ago
  • The green pigment, chlorophyll a, absorbs red light, the energy from which powers photosynthetic processes in plants and algae.?

    Chlorophyll a is 6.27% nitrogen by mass. Each molecule of chlorophyll a contains 4 nitrogen atoms. What is the molecular mass of chlorophyll a? Each chlorophyll a molecule contains one magnesium atom. What mass of magnesium is to be found in 2.86 g of chlorophyll a?
    Chlorophyll a is 6.27% nitrogen by mass. Each molecule of chlorophyll a contains 4 nitrogen atoms. What is the molecular mass of chlorophyll a? Each chlorophyll a molecule contains one magnesium atom. What mass of magnesium is to be found in 2.86 g of chlorophyll a?
    1 answer · Botany · 3 years ago
  • A natural product has the molecular formula C19H20O7. What is the molar mass of this compound (in g/mol)?

    How many moles of C19H20O7 molecules are in 167 mg of this compound? What is the mass of 0.100 mol of this compound? How many carbon atoms are in 2.87 pg of this compound?
    How many moles of C19H20O7 molecules are in 167 mg of this compound? What is the mass of 0.100 mol of this compound? How many carbon atoms are in 2.87 pg of this compound?
    1 answer · Homework Help · 3 years ago