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A vertical, circular cross-sectional jet of water (20 oC) strikes a conical deflector, as shown. A vertical force of 7 N (in the negative z direction) is required to hold the deflector in place. Determine the mass (kg) of the deflector. Assume the velocity of the water remains constant.
Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 1.50 L of solution.
A set of data gave an average unpopped kernel of 0.12 grams. How many kernels are in a pound of unpopped corn?
10 grams of potassium chlorate (KClO3) is heated and decomposed, what mass of oxygen gas will be formed?
What is the pH of the solution when the hydronium ion + concentration of 0.15 M CH3COOH is 6.3 × 10.
If the chemist mistakenly makes 275 mL of solution instead of the 200 mL, what molar concentration of sodium nitrate will the chemist have actually prepared?
what is the q solution in Jouls and what is the q rxn in Joules? What is the Delta H rxn in KJ/mo of HNO3 neutralized?
The double-replacement reaction between silver nitrate and sodium bromide produces silver bromide, a component of photographic film. (A) If 4.50mol of silver react, what mass of sodium bromide is required?
a large cylinder of He gas,such as that used to inflate balloons,has a volume of 25.0 L at 22c and 5.6 atm. How many moles of He are in such a cylinder
If an automobile is able to travel 246 on 10.6 of gasoline, what is the gas mileage in ?
sample of gas occupies 10.0-mL at 294.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
How many moles of each are present in the eq mixture b)Calculate the equilibrium constant
a hydrate of calcuim chloride contains 49.3% water and has a formula weight of 219g/mol calculate the molecular formula of the hydrate
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