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化学 高校生

【英語ですみません】最後の12番は何を書いたら良いのでしょうか…? Video C の実験では、aqueous solution にlead(ii) nitrate, aqueous solution にPottasium iodide を入れていました。 2KI (aq)... 続きを読む

With lead (I) nitrate solution. This precipitation reaction produces a bright yellow solid. (point values in parentheses) Part 1: 1. Copy the unbalanced reaction below into your lab notebook. Balance the reaction by adding coefficients. (1) KI (aq) Pb(NO,), (aq) KNO, (aq) Pbl, (s) 2. a) Which trial are you assigned? b) Copy the data table below into your notebook. Watch video A (make sure it's the correct trial!) and collect your data. You may need to pause or rewatch the video, it goes quickly. (1.5) Mass of Empty Beaker (g) Mass of Beaker+ solid Pb(NO,)。(g) Volume of 1.0 M KI (aq) (mL) For the following calculations, show all your work for full credit. 3. What mass of solid Pb(N0,), was added to the beaker? (1) 4. If the solid Pb(NO,), was dissolved in 45 mL of water, what is the molarity of the Pb(NO,)。 solution? (2.5) 5. Which compound is the limiting reactant? (4) 6. What mass of lead (II) iodide (PbL,) should be produced? (2) Part 2: 7. Watch video B (make sure it's the correct trial!) to see the complete reaction and collection of the product. Copy the data table below and record your data. (1) Mass of filter paper (g) Mass of filter paper + dried precipitate (g) 8. What mass of precipitate was collected? Show your work. (1) Calculate the percent yield for the reaction. Show your work. (2) 10. For your trial, which three ions were present in the filtered solution at the end of the reaction? In other words, which three ions are still dissolved at the end of the reaction? Defend/explain your 9. answer. (3) 11. Watch video C - watch both tests for your trial and record your observations. (1) a) Add lead (II) nitrate - b) Add potassium iodide - 12. These tests were conducted to prove the identity of the limiting reactant. Considering your answers to the previous two questions, describe how these tests support the prediction you made in question 5 about which compound is the limiting reactant. (2)

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英語 高校生

英語に自信がある人回答づくりお願いします! ※書き込みは気にしないでください。

第2間 次の金会話文を読んで、 股設間に答えなさい。 Miranda: Are you enjoying yourself here in the States, Yuya, now that you've been here for a fow months? Yuya: Yes, I'm having a great time, Ite ( 1 ) how much of it is being in a foreiy Country and how much of it is just being in college, though, Miranda: Iguess I know ( 2 ), There's a lot more freedom iving away from home . don't have my mom and dad badgering me all the time about where P'm telling me to do my homework, either, Yuya: Exactly, olway/my/the /were / parents / same ], Miranda: I suppose that kind of thing has no borders, Do you find yourself ( 3 ).. all? Yuya: Not really, IfI were living alone, I might, But I have roommates and . been ealling or texting my parents once a week, ( 4 )I gues I don't feel tho isolated, Imiss Japanese food a bit but it'snot too bad, How about you'2 Miranda: Not one bit, I'm gl to/ to be / happy / my own/live / able ] life, Even thouoh I guess Iam still adjusting a little, It's tough having to fend for myself for fud I sometimes get so wrapped up in things that I( 5 ), and then I pay for it later Maybe I should have gotten the meal plan after all, Yuya: It's so expensive, though, And you'd still have to go to the dining hall, s01 don't ol solve / your/think/it/problem/would ], Maybe I'll just have to invite you out for lunch like this more often, Miranda: Who am I to say no to that? Yuya: OK, ola/away/ has/ that/and/ half] the best ice eream, 6 ) Do you want to get some dessert? I know a place about a block Miranda: You don't have to twist my arm, lo o A dnids nog o fal 00 fom yod ef'T IAl odhon dd o 3.

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英語 高校生

英語に自信がある人回答づくりお願いします! ※書き込みは気にしないでください

第2間 次の金会話文を読んで、 股設間に答えなさい。 Miranda: Are you enjoying yourself here in the States, Yuya, now that you've been here for a fow months? Yuya: Yes, I'm having a great time, Ite ( 1 ) how much of it is being in a foreiy Country and how much of it is just being in college, though, Miranda: Iguess I know ( 2 ), There's a lot more freedom iving away from home . don't have my mom and dad badgering me all the time about where P'm telling me to do my homework, either, Yuya: Exactly, olway/my/the /were / parents / same ], Miranda: I suppose that kind of thing has no borders, Do you find yourself ( 3 ).. all? Yuya: Not really, IfI were living alone, I might, But I have roommates and . been ealling or texting my parents once a week, ( 4 )I gues I don't feel tho isolated, Imiss Japanese food a bit but it'snot too bad, How about you'2 Miranda: Not one bit, I'm gl to/ to be / happy / my own/live / able ] life, Even thouoh I guess Iam still adjusting a little, It's tough having to fend for myself for fud I sometimes get so wrapped up in things that I( 5 ), and then I pay for it later Maybe I should have gotten the meal plan after all, Yuya: It's so expensive, though, And you'd still have to go to the dining hall, s01 don't ol solve / your/think/it/problem/would ], Maybe I'll just have to invite you out for lunch like this more often, Miranda: Who am I to say no to that? Yuya: OK, ola/away/ has/ that/and/ half] the best ice eream, 6 ) Do you want to get some dessert? I know a place about a block Miranda: You don't have to twist my arm, lo o A dnids nog o fal 00 fom yod ef'T IAl odhon dd o 3.

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英語 高校生

英語に自信がある人回答づくりお願いします! ※書き込みは気にしないでください。

第2間 次の金会話文を読んで、 股設間に答えなさい。 Miranda: Are you enjoying yourself here in the States, Yuya, now that you've been here for a fow months? Yuya: Yes, I'm having a great time, Ite ( 1 ) how much of it is being in a foreiy Country and how much of it is just being in college, though, Miranda: Iguess I know ( 2 ), There's a lot more freedom iving away from home . don't have my mom and dad badgering me all the time about where P'm telling me to do my homework, either, Yuya: Exactly, olway/my/the /were / parents / same ], Miranda: I suppose that kind of thing has no borders, Do you find yourself ( 3 ).. all? Yuya: Not really, IfI were living alone, I might, But I have roommates and . been ealling or texting my parents once a week, ( 4 )I gues I don't feel tho isolated, Imiss Japanese food a bit but it'snot too bad, How about you'2 Miranda: Not one bit, I'm gl to/ to be / happy / my own/live / able ] life, Even thouoh I guess Iam still adjusting a little, It's tough having to fend for myself for fud I sometimes get so wrapped up in things that I( 5 ), and then I pay for it later Maybe I should have gotten the meal plan after all, Yuya: It's so expensive, though, And you'd still have to go to the dining hall, s01 don't ol solve / your/think/it/problem/would ], Maybe I'll just have to invite you out for lunch like this more often, Miranda: Who am I to say no to that? Yuya: OK, ola/away/ has/ that/and/ half] the best ice eream, 6 ) Do you want to get some dessert? I know a place about a block Miranda: You don't have to twist my arm, lo o A dnids nog o fal 00 fom yod ef'T IAl odhon dd o 3.

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英語 高校生

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ON Po0-0。 ce から-っ に基づい 表び、る てop 、 その番紀を 答えとして最 ークしなきい も壮切なものを、 のヘー most jikely be e で more famous than they are today. -A taveler ing G w cxploring Germanys sccnic Ri v y CrmanysS sccnic Rhine River who visits the dty Of Bingen will be directed to the hi m the history i Seum there, which features front and center the amazing career of Saint エTi Su 隊 asant Cy 9 rmeenty se 202 Gm am ace ko ery sense a issance ogx。 born a htHle more than three and| き half centuries before the greatest Renaissance man Leonardo da Vinci (1432.1519). Hildegard was not only a composer of church music but also a mystic。 es a playwright an 7 Re and a sharp observer of natural phenomena on earth and in the skies. Tronically she had becn a sickly child and her aristocrat father did not hold much hope for her fature should she choose a normal life. Hle felt her only possibihty of personal happiness Would be in the service of God as a nun. isolated from the stresses of daily decision-making. Fortunately for Hildegard, Jutta von Spanheim, her mentor, saw in her an unusual abihty。 and ldegard was able to develop it to such a high degree that she became famous in her long jifetime of eighty-one yearS, even going on tOurS throughout Europe to promote her ideas and professed God-given ViSionS. _) Hildegard was a member of the Benedictine Order、 That meant a hife of balanced sleep.a Yegetarian diet regular DraYer and lots of hard work Her frst book, /zber Sczps (Koz 7e ld be a widely read description of the coSmos based on ancient Greek ideas、 It Ps), woul jwas believed to be a divinely inspired work in its time and Would not be matched by any man 邊he short biographies on Hildegard di al for centuries, lo not ahways detail her mus nm them, but Hildegard composed noteworthy liturgical pieces jpositions, 中 even mentio」 eered in developing the musical morality for ublic religious ceremony). She also pion in character of a StorY is presented with herheorsheis granted entry into here the mal a dilemma of choice mcept where and evil which wil determine Whet heaven e.Ytaly, and the Year 1619、 It was the tme of the Baroque. Nght

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