Sodium nitrite, NaNO, has a molar mass of 85.0 g/mol. What volume of 1.60 M NaNO;...
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Sodium nitrite, NaNO, has a molar mass of 85.0 g/mol. What volume of 1.60 M NaNO; (aq) is needed in order to give 17.0 g of NaNO;? O a. 0.125 mL O b. 125 mL O c. 17.0 ml O d. 1.6 mL Question 3 What is the percent, by mass, of potassium in K;SO,? Not yet [Molar mass (g/mol) of S = 32.07, O = 16.00, and K = 39.1] answered Marked out of 1.25 P Flag question O a. 22.44% а. O b. 47.05% O c. 44.87% O d. 39.45% Question 2 Given the thermochemical equation: 250,(g) + O2(g) – 2 so;(g) AH ren = -198 kJ How much heat is evolved when 192 g of SOz is burned? [molar mass (g/mol) of S = 32.00, and O = 16.00] Not yet answered Marked out of 1.25 P Flag question О а. 495 k O b. 297 kJ О с. 198 k O d. 396 kJ Sodium nitrite, NaNO, has a molar mass of 85.0 g/mol. What volume of 1.60 M NaNO; (aq) is needed in order to give 17.0 g of NaNO;? O a. 0.125 mL O b. 125 mL O c. 17.0 ml O d. 1.6 mL Question 3 What is the percent, by mass, of potassium in K;SO,? Not yet [Molar mass (g/mol) of S = 32.07, O = 16.00, and K = 39.1] answered Marked out of 1.25 P Flag question O a. 22.44% а. O b. 47.05% O c. 44.87% O d. 39.45% Question 2 Given the thermochemical equation: 250,(g) + O2(g) – 2 so;(g) AH ren = -198 kJ How much heat is evolved when 192 g of SOz is burned? [molar mass (g/mol) of S = 32.00, and O = 16.00] Not yet answered Marked out of 1.25 P Flag question О а. 495 k O b. 297 kJ О с. 198 k O d. 396 kJ
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